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import {
	REVISION,
	BackSide,
	FrontSide,
	DoubleSide,
	HalfFloatType,
	UnsignedByteType,
	NoToneMapping,
	LinearMipmapLinearFilter,
	SRGBColorSpace,
	LinearSRGBColorSpace,
	RGBAIntegerFormat,
	RGIntegerFormat,
	RedIntegerFormat,
	UnsignedIntType,
	UnsignedShortType,
	UnsignedInt248Type,
	UnsignedShort4444Type,
	UnsignedShort5551Type,
	WebGLCoordinateSystem
} from '../constants.js';
import { Color } from '../math/Color.js';
import { Frustum } from '../math/Frustum.js';
import { Matrix4 } from '../math/Matrix4.js';
import { Vector3 } from '../math/Vector3.js';
import { Vector4 } from '../math/Vector4.js';
import { WebGLAnimation } from './webgl/WebGLAnimation.js';
import { WebGLAttributes } from './webgl/WebGLAttributes.js';
import { WebGLBackground } from './webgl/WebGLBackground.js';
import { WebGLBindingStates } from './webgl/WebGLBindingStates.js';
import { WebGLBufferRenderer } from './webgl/WebGLBufferRenderer.js';
import { WebGLCapabilities } from './webgl/WebGLCapabilities.js';
import { WebGLClipping } from './webgl/WebGLClipping.js';
import { WebGLCubeMaps } from './webgl/WebGLCubeMaps.js';
import { WebGLCubeUVMaps } from './webgl/WebGLCubeUVMaps.js';
import { WebGLExtensions } from './webgl/WebGLExtensions.js';
import { WebGLGeometries } from './webgl/WebGLGeometries.js';
import { WebGLIndexedBufferRenderer } from './webgl/WebGLIndexedBufferRenderer.js';
import { WebGLInfo } from './webgl/WebGLInfo.js';
import { WebGLMorphtargets } from './webgl/WebGLMorphtargets.js';
import { WebGLObjects } from './webgl/WebGLObjects.js';
import { WebGLPrograms } from './webgl/WebGLPrograms.js';
import { WebGLProperties } from './webgl/WebGLProperties.js';
import { WebGLRenderLists } from './webgl/WebGLRenderLists.js';
import { WebGLRenderStates } from './webgl/WebGLRenderStates.js';
import { WebGLRenderTarget } from './WebGLRenderTarget.js';
import { WebGLShadowMap } from './webgl/WebGLShadowMap.js';
import { WebGLState } from './webgl/WebGLState.js';
import { WebGLTextures } from './webgl/WebGLTextures.js';
import { WebGLUniforms } from './webgl/WebGLUniforms.js';
import { WebGLUtils } from './webgl/WebGLUtils.js';
import { WebXRManager } from './webxr/WebXRManager.js';
import { WebGLMaterials } from './webgl/WebGLMaterials.js';
import { WebGLUniformsGroups } from './webgl/WebGLUniformsGroups.js';
import { createCanvasElement, probeAsync, toNormalizedProjectionMatrix, toReversedProjectionMatrix, warnOnce } from '../utils.js';
import { ColorManagement } from '../math/ColorManagement.js';

class WebGLRenderer {

constructor( parameters = {} ) {

const {
			canvas = createCanvasElement(),
			context = null,
			depth = true,
			stencil = false,
			alpha = false,
			antialias = false,
			premultipliedAlpha = true,
			preserveDrawingBuffer = false,
			powerPreference = 'default',
			failIfMajorPerformanceCaveat = false,
			reverseDepthBuffer = false,
		} = parameters;

this.isWebGLRenderer = true;

let _alpha;

if ( context !== null ) {

if ( typeof WebGLRenderingContext !== 'undefined' && context instanceof WebGLRenderingContext ) {

throw new Error( 'THREE.WebGLRenderer: WebGL 1 is not supported since r163.' );

}

_alpha = context.getContextAttributes().alpha;

} else {

_alpha = alpha;

}

const uintClearColor = new Uint32Array( 4 );
		const intClearColor = new Int32Array( 4 );

let currentRenderList = null;
		let currentRenderState = null;

// render() can be called from within a callback triggered by another render.
		// We track this so that the nested render call gets its list and state isolated from the parent render call.

const renderListStack = [];
		const renderStateStack = [];

// public properties

this.domElement = canvas;

// Debug configuration container
		this.debug = {

/**
			 * Enables error checking and reporting when shader programs are being compiled
			 * @type {boolean}
			 */
			checkShaderErrors: true,
			/**
			 * Callback for custom error reporting.
			 * @type {?Function}
			 */
			onShaderError: null
		};

// clearing

this.autoClear = true;
		this.autoClearColor = true;
		this.autoClearDepth = true;
		this.autoClearStencil = true;

// scene graph

this.sortObjects = true;

// user-defined clipping

this.clippingPlanes = [];
		this.localClippingEnabled = false;

// physically based shading

this._outputColorSpace = SRGBColorSpace;

// tone mapping

this.toneMapping = NoToneMapping;
		this.toneMappingExposure = 1.0;

// internal properties

const _this = this;

let _isContextLost = false;

// internal state cache

let _currentActiveCubeFace = 0;
		let _currentActiveMipmapLevel = 0;
		let _currentRenderTarget = null;
		let _currentMaterialId = - 1;

let _currentCamera = null;

const _currentViewport = new Vector4();
		const _currentScissor = new Vector4();
		let _currentScissorTest = null;

const _currentClearColor = new Color( 0x000000 );
		let _currentClearAlpha = 0;

let _width = canvas.width;
		let _height = canvas.height;

let _pixelRatio = 1;
		let _opaqueSort = null;
		let _transparentSort = null;

const _viewport = new Vector4( 0, 0, _width, _height );
		const _scissor = new Vector4( 0, 0, _width, _height );
		let _scissorTest = false;

// frustum

const _frustum = new Frustum();

// clipping

let _clippingEnabled = false;
		let _localClippingEnabled = false;

// transmission render target scale
		this.transmissionResolutionScale = 1.0;

// camera matrices cache

const _currentProjectionMatrix = new Matrix4();
		const _projScreenMatrix = new Matrix4();

const _vector3 = new Vector3();

const _vector4 = new Vector4();

const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true };

let _renderBackground = false;

function getTargetPixelRatio() {

return _currentRenderTarget === null ? _pixelRatio : 1;

}

// initialize

let _gl = context;

function getContext( contextName, contextAttributes ) {

return canvas.getContext( contextName, contextAttributes );

}

try {

const contextAttributes = {
				alpha: true,
				depth,
				stencil,
				antialias,
				premultipliedAlpha,
				preserveDrawingBuffer,
				powerPreference,
				failIfMajorPerformanceCaveat,
			};

// OffscreenCanvas does not have setAttribute, see #22811
			if ( 'setAttribute' in canvas ) canvas.setAttribute( 'data-engine', `three.js r${REVISION}` );

// event listeners must be registered before WebGL context is created, see #12753
			canvas.addEventListener( 'webglcontextlost', onContextLost, false );
			canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
			canvas.addEventListener( 'webglcontextcreationerror', onContextCreationError, false );

if ( _gl === null ) {

const contextName = 'webgl2';

_gl = getContext( contextName, contextAttributes );

if ( _gl === null ) {

if ( getContext( contextName ) ) {

throw new Error( 'Error creating WebGL context with your selected attributes.' );

} else {

throw new Error( 'Error creating WebGL context.' );

}

} catch ( error ) {

console.error( 'THREE.WebGLRenderer: ' + error.message );
			throw error;

}

let extensions, capabilities, state, info;
		let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects;
		let programCache, materials, renderLists, renderStates, clipping, shadowMap;

let background, morphtargets, bufferRenderer, indexedBufferRenderer;

let utils, bindingStates, uniformsGroups;

function initGLContext() {

extensions = new WebGLExtensions( _gl );
			extensions.init();

utils = new WebGLUtils( _gl, extensions );

capabilities = new WebGLCapabilities( _gl, extensions, parameters, utils );

state = new WebGLState( _gl, extensions );

if ( capabilities.reverseDepthBuffer && reverseDepthBuffer ) {

state.buffers.depth.setReversed( true );

}

info = new WebGLInfo( _gl );
			properties = new WebGLProperties();
			textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
			cubemaps = new WebGLCubeMaps( _this );
			cubeuvmaps = new WebGLCubeUVMaps( _this );
			attributes = new WebGLAttributes( _gl );
			bindingStates = new WebGLBindingStates( _gl, attributes );
			geometries = new WebGLGeometries( _gl, attributes, info, bindingStates );
			objects = new WebGLObjects( _gl, geometries, attributes, info );
			morphtargets = new WebGLMorphtargets( _gl, capabilities, textures );
			clipping = new WebGLClipping( properties );
			programCache = new WebGLPrograms( _this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping );
			materials = new WebGLMaterials( _this, properties );
			renderLists = new WebGLRenderLists();
			renderStates = new WebGLRenderStates( extensions );
			background = new WebGLBackground( _this, cubemaps, cubeuvmaps, state, objects, _alpha, premultipliedAlpha );
			shadowMap = new WebGLShadowMap( _this, objects, capabilities );
			uniformsGroups = new WebGLUniformsGroups( _gl, info, capabilities, state );

bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info );
			indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info );

info.programs = programCache.programs;

_this.capabilities = capabilities;
			_this.extensions = extensions;
			_this.properties = properties;
			_this.renderLists = renderLists;
			_this.shadowMap = shadowMap;
			_this.state = state;
			_this.info = info;

}

initGLContext();

// xr

const xr = new WebXRManager( _this, _gl );

this.xr = xr;

// API

this.getContext = function () {

return _gl;

};

this.getContextAttributes = function () {

return _gl.getContextAttributes();

};

this.forceContextLoss = function () {

const extension = extensions.get( 'WEBGL_lose_context' );
			if ( extension ) extension.loseContext();

};

this.forceContextRestore = function () {

const extension = extensions.get( 'WEBGL_lose_context' );
			if ( extension ) extension.restoreContext();

};

this.getPixelRatio = function () {

return _pixelRatio;

};

this.setPixelRatio = function ( value ) {

if ( value === undefined ) return;

_pixelRatio = value;

this.setSize( _width, _height, false );

};

this.getSize = function ( target ) {

return target.set( _width, _height );

};

this.setSize = function ( width, height, updateStyle = true ) {

if ( xr.isPresenting ) {

console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
				return;

}

_width = width;
			_height = height;

canvas.width = Math.floor( width * _pixelRatio );
			canvas.height = Math.floor( height * _pixelRatio );

if ( updateStyle === true ) {

canvas.style.width = width + 'px';
				canvas.style.height = height + 'px';

}

this.setViewport( 0, 0, width, height );

};

this.getDrawingBufferSize = function ( target ) {

return target.set( _width * _pixelRatio, _height * _pixelRatio ).floor();

};

this.setDrawingBufferSize = function ( width, height, pixelRatio ) {

_width = width;
			_height = height;

_pixelRatio = pixelRatio;

canvas.width = Math.floor( width * pixelRatio );
			canvas.height = Math.floor( height * pixelRatio );

this.setViewport( 0, 0, width, height );

};

this.getCurrentViewport = function ( target ) {

return target.copy( _currentViewport );

};

this.getViewport = function ( target ) {

return target.copy( _viewport );

};

this.setViewport = function ( x, y, width, height ) {

if ( x.isVector4 ) {

_viewport.set( x.x, x.y, x.z, x.w );

} else {

_viewport.set( x, y, width, height );

}

state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).round() );

};

this.getScissor = function ( target ) {

return target.copy( _scissor );

};

this.setScissor = function ( x, y, width, height ) {

if ( x.isVector4 ) {

_scissor.set( x.x, x.y, x.z, x.w );

} else {

_scissor.set( x, y, width, height );

}

state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).round() );

};

this.getScissorTest = function () {

return _scissorTest;

};

this.setScissorTest = function ( boolean ) {

state.setScissorTest( _scissorTest = boolean );

};

this.setOpaqueSort = function ( method ) {

_opaqueSort = method;

};

this.setTransparentSort = function ( method ) {

_transparentSort = method;

};

// Clearing

this.getClearColor = function ( target ) {

return target.copy( background.getClearColor() );

};

this.setClearColor = function () {

background.setClearColor( ...arguments );

};

this.getClearAlpha = function () {

return background.getClearAlpha();

};

this.setClearAlpha = function () {

background.setClearAlpha( ...arguments );

};

this.clear = function ( color = true, depth = true, stencil = true ) {

let bits = 0;

if ( color ) {

// check if we're trying to clear an integer target
				let isIntegerFormat = false;
				if ( _currentRenderTarget !== null ) {

const targetFormat = _currentRenderTarget.texture.format;
					isIntegerFormat = targetFormat === RGBAIntegerFormat ||
						targetFormat === RGIntegerFormat ||
						targetFormat === RedIntegerFormat;

}

// use the appropriate clear functions to clear the target if it's a signed
				// or unsigned integer target
				if ( isIntegerFormat ) {

const targetType = _currentRenderTarget.texture.type;
					const isUnsignedType = targetType === UnsignedByteType ||
						targetType === UnsignedIntType ||
						targetType === UnsignedShortType ||
						targetType === UnsignedInt248Type ||
						targetType === UnsignedShort4444Type ||
						targetType === UnsignedShort5551Type;

const clearColor = background.getClearColor();
					const a = background.getClearAlpha();
					const r = clearColor.r;
					const g = clearColor.g;
					const b = clearColor.b;

if ( isUnsignedType ) {

uintClearColor[ 0 ] = r;
						uintClearColor[ 1 ] = g;
						uintClearColor[ 2 ] = b;
						uintClearColor[ 3 ] = a;
						_gl.clearBufferuiv( _gl.COLOR, 0, uintClearColor );

} else {

intClearColor[ 0 ] = r;
						intClearColor[ 1 ] = g;
						intClearColor[ 2 ] = b;
						intClearColor[ 3 ] = a;
						_gl.clearBufferiv( _gl.COLOR, 0, intClearColor );

}

} else {

bits |= _gl.COLOR_BUFFER_BIT;

}

if ( depth ) {

bits |= _gl.DEPTH_BUFFER_BIT;

}

if ( stencil ) {

bits |= _gl.STENCIL_BUFFER_BIT;
				this.state.buffers.stencil.setMask( 0xffffffff );

}

_gl.clear( bits );

};

this.clearColor = function () {

this.clear( true, false, false );

};

this.clearDepth = function () {

this.clear( false, true, false );

};

this.clearStencil = function () {

this.clear( false, false, true );

};

this.dispose = function () {

canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
			canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
			canvas.removeEventListener( 'webglcontextcreationerror', onContextCreationError, false );

background.dispose();
			renderLists.dispose();
			renderStates.dispose();
			properties.dispose();
			cubemaps.dispose();
			cubeuvmaps.dispose();
			objects.dispose();
			bindingStates.dispose();
			uniformsGroups.dispose();
			programCache.dispose();

xr.dispose();

xr.removeEventListener( 'sessionstart', onXRSessionStart );
			xr.removeEventListener( 'sessionend', onXRSessionEnd );

animation.stop();

};

// Events

function onContextLost( event ) {

event.preventDefault();

console.log( 'THREE.WebGLRenderer: Context Lost.' );

_isContextLost = true;

}

function onContextRestore( /* event */ ) {

console.log( 'THREE.WebGLRenderer: Context Restored.' );

_isContextLost = false;

const infoAutoReset = info.autoReset;
			const shadowMapEnabled = shadowMap.enabled;
			const shadowMapAutoUpdate = shadowMap.autoUpdate;
			const shadowMapNeedsUpdate = shadowMap.needsUpdate;
			const shadowMapType = shadowMap.type;

initGLContext();

info.autoReset = infoAutoReset;
			shadowMap.enabled = shadowMapEnabled;
			shadowMap.autoUpdate = shadowMapAutoUpdate;
			shadowMap.needsUpdate = shadowMapNeedsUpdate;
			shadowMap.type = shadowMapType;

}

function onContextCreationError( event ) {

console.error( 'THREE.WebGLRenderer: A WebGL context could not be created. Reason: ', event.statusMessage );

}

function onMaterialDispose( event ) {

const material = event.target;

material.removeEventListener( 'dispose', onMaterialDispose );

deallocateMaterial( material );

}

// Buffer deallocation

function deallocateMaterial( material ) {

releaseMaterialProgramReferences( material );

properties.remove( material );

}

function releaseMaterialProgramReferences( material ) {

const programs = properties.get( material ).programs;

if ( programs !== undefined ) {

programs.forEach( function ( program ) {

programCache.releaseProgram( program );

} );

if ( material.isShaderMaterial ) {

programCache.releaseShaderCache( material );

}

// Buffer rendering

this.renderBufferDirect = function ( camera, scene, geometry, material, object, group ) {

if ( scene === null ) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)

const frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );

const program = setProgram( camera, scene, geometry, material, object );

state.setMaterial( material, frontFaceCW );

let index = geometry.index;
			let rangeFactor = 1;

if ( material.wireframe === true ) {

index = geometries.getWireframeAttribute( geometry );

if ( index === undefined ) return;

rangeFactor = 2;

}

const drawRange = geometry.drawRange;
			const position = geometry.attributes.position;

let drawStart = drawRange.start * rangeFactor;
			let drawEnd = ( drawRange.start + drawRange.count ) * rangeFactor;

if ( group !== null ) {

drawStart = Math.max( drawStart, group.start * rangeFactor );
				drawEnd = Math.min( drawEnd, ( group.start + group.count ) * rangeFactor );

}

if ( index !== null ) {

drawStart = Math.max( drawStart, 0 );
				drawEnd = Math.min( drawEnd, index.count );

} else if ( position !== undefined && position !== null ) {

drawStart = Math.max( drawStart, 0 );
				drawEnd = Math.min( drawEnd, position.count );

}

const drawCount = drawEnd - drawStart;

if ( drawCount < 0 || drawCount === Infinity ) return;

bindingStates.setup( object, material, program, geometry, index );

let attribute;
			let renderer = bufferRenderer;

if ( index !== null ) {

attribute = attributes.get( index );

renderer = indexedBufferRenderer;
				renderer.setIndex( attribute );

}

if ( object.isMesh ) {

if ( material.wireframe === true ) {

state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
					renderer.setMode( _gl.LINES );

} else {

renderer.setMode( _gl.TRIANGLES );

}

} else if ( object.isLine ) {

let lineWidth = material.linewidth;

if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

state.setLineWidth( lineWidth * getTargetPixelRatio() );

if ( object.isLineSegments ) {

renderer.setMode( _gl.LINES );

} else if ( object.isLineLoop ) {

renderer.setMode( _gl.LINE_LOOP );

} else {

renderer.setMode( _gl.LINE_STRIP );

}

} else if ( object.isPoints ) {

renderer.setMode( _gl.POINTS );

} else if ( object.isSprite ) {

renderer.setMode( _gl.TRIANGLES );

}

if ( object.isBatchedMesh ) {

if ( object._multiDrawInstances !== null ) {

// @deprecated, r174
					warnOnce( 'THREE.WebGLRenderer: renderMultiDrawInstances has been deprecated and will be removed in r184. Append to renderMultiDraw arguments and use indirection.' );
					renderer.renderMultiDrawInstances( object._multiDrawStarts, object._multiDrawCounts, object._multiDrawCount, object._multiDrawInstances );

} else {

if ( ! extensions.get( 'WEBGL_multi_draw' ) ) {

const starts = object._multiDrawStarts;
						const counts = object._multiDrawCounts;
						const drawCount = object._multiDrawCount;
						const bytesPerElement = index ? attributes.get( index ).bytesPerElement : 1;
						const uniforms = properties.get( material ).currentProgram.getUniforms();
						for ( let i = 0; i < drawCount; i ++ ) {

uniforms.setValue( _gl, '_gl_DrawID', i );
							renderer.render( starts[ i ] / bytesPerElement, counts[ i ] );

}

} else {

renderer.renderMultiDraw( object._multiDrawStarts, object._multiDrawCounts, object._multiDrawCount );

}

} else if ( object.isInstancedMesh ) {

renderer.renderInstances( drawStart, drawCount, object.count );

} else if ( geometry.isInstancedBufferGeometry ) {

const maxInstanceCount = geometry._maxInstanceCount !== undefined ? geometry._maxInstanceCount : Infinity;
				const instanceCount = Math.min( geometry.instanceCount, maxInstanceCount );

renderer.renderInstances( drawStart, drawCount, instanceCount );

} else {

renderer.render( drawStart, drawCount );

}

};

// Compile

function prepareMaterial( material, scene, object ) {

if ( material.transparent === true && material.side === DoubleSide && material.forceSinglePass === false ) {

material.side = BackSide;
				material.needsUpdate = true;
				getProgram( material, scene, object );

material.side = FrontSide;
				material.needsUpdate = true;
				getProgram( material, scene, object );

material.side = DoubleSide;

} else {

getProgram( material, scene, object );

}

this.compile = function ( scene, camera, targetScene = null ) {

if ( targetScene === null ) targetScene = scene;

currentRenderState = renderStates.get( targetScene );
			currentRenderState.init( camera );

renderStateStack.push( currentRenderState );

// gather lights from both the target scene and the new object that will be added to the scene.

targetScene.traverseVisible( function ( object ) {

if ( object.isLight && object.layers.test( camera.layers ) ) {

currentRenderState.pushLight( object );

if ( object.castShadow ) {

currentRenderState.pushShadow( object );

}

} );

if ( scene !== targetScene ) {

scene.traverseVisible( function ( object ) {

if ( object.isLight && object.layers.test( camera.layers ) ) {

currentRenderState.pushLight( object );

if ( object.castShadow ) {

currentRenderState.pushShadow( object );

}

} );

}

currentRenderState.setupLights();

// Only initialize materials in the new scene, not the targetScene.

const materials = new Set();

scene.traverse( function ( object ) {

if ( ! ( object.isMesh || object.isPoints || object.isLine || object.isSprite ) ) {

return;

}

const material = object.material;

if ( material ) {

if ( Array.isArray( material ) ) {

for ( let i = 0; i < material.length; i ++ ) {

const material2 = material[ i ];

prepareMaterial( material2, targetScene, object );
							materials.add( material2 );

}

} else {

prepareMaterial( material, targetScene, object );
						materials.add( material );

}

} );

currentRenderState = renderStateStack.pop();

return materials;

};

// compileAsync

this.compileAsync = function ( scene, camera, targetScene = null ) {

const materials = this.compile( scene, camera, targetScene );

// Wait for all the materials in the new object to indicate that they're
			// ready to be used before resolving the promise.

return new Promise( ( resolve ) => {

function checkMaterialsReady() {

materials.forEach( function ( material ) {

const materialProperties = properties.get( material );
						const program = materialProperties.currentProgram;

if ( program.isReady() ) {

// remove any programs that report they're ready to use from the list
							materials.delete( material );

}

} );

// once the list of compiling materials is empty, call the callback

if ( materials.size === 0 ) {

resolve( scene );
						return;

}

// if some materials are still not ready, wait a bit and check again

setTimeout( checkMaterialsReady, 10 );

}

if ( extensions.get( 'KHR_parallel_shader_compile' ) !== null ) {

// If we can check the compilation status of the materials without
					// blocking then do so right away.

checkMaterialsReady();

} else {

// Otherwise start by waiting a bit to give the materials we just
					// initialized a chance to finish.

setTimeout( checkMaterialsReady, 10 );

}

} );

};

// Animation Loop

let onAnimationFrameCallback = null;

function onAnimationFrame( time ) {

if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );

}

function onXRSessionStart() {

animation.stop();

}

function onXRSessionEnd() {

animation.start();

}

const animation = new WebGLAnimation();
		animation.setAnimationLoop( onAnimationFrame );

if ( typeof self !== 'undefined' ) animation.setContext( self );

this.setAnimationLoop = function ( callback ) {

onAnimationFrameCallback = callback;
			xr.setAnimationLoop( callback );

( callback === null ) ? animation.stop() : animation.start();

};

xr.addEventListener( 'sessionstart', onXRSessionStart );
		xr.addEventListener( 'sessionend', onXRSessionEnd );

// Rendering

this.render = function ( scene, camera ) {

if ( camera !== undefined && camera.isCamera !== true ) {

console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
				return;

}

if ( _isContextLost === true ) return;

// update scene graph

if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();

// update camera matrices and frustum

if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();

if ( xr.enabled === true && xr.isPresenting === true ) {

if ( xr.cameraAutoUpdate === true ) xr.updateCamera( camera );

camera = xr.getCamera(); // use XR camera for rendering

}

//
			if ( scene.isScene === true ) scene.onBeforeRender( _this, scene, camera, _currentRenderTarget );

currentRenderState = renderStates.get( scene, renderStateStack.length );
			currentRenderState.init( camera );

renderStateStack.push( currentRenderState );

_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
			_frustum.setFromProjectionMatrix( _projScreenMatrix );

_localClippingEnabled = this.localClippingEnabled;
			_clippingEnabled = clipping.init( this.clippingPlanes, _localClippingEnabled );

currentRenderList = renderLists.get( scene, renderListStack.length );
			currentRenderList.init();

renderListStack.push( currentRenderList );

if ( xr.enabled === true && xr.isPresenting === true ) {

const depthSensingMesh = _this.xr.getDepthSensingMesh();

if ( depthSensingMesh !== null ) {

projectObject( depthSensingMesh, camera, - Infinity, _this.sortObjects );

}

projectObject( scene, camera, 0, _this.sortObjects );

currentRenderList.finish();

if ( _this.sortObjects === true ) {

currentRenderList.sort( _opaqueSort, _transparentSort );

}

_renderBackground = xr.enabled === false || xr.isPresenting === false || xr.hasDepthSensing() === false;
			if ( _renderBackground ) {

background.addToRenderList( currentRenderList, scene );

}

this.info.render.frame ++;

if ( _clippingEnabled === true ) clipping.beginShadows();

const shadowsArray = currentRenderState.state.shadowsArray;

shadowMap.render( shadowsArray, scene, camera );

if ( _clippingEnabled === true ) clipping.endShadows();

if ( this.info.autoReset === true ) this.info.reset();

// render scene

const opaqueObjects = currentRenderList.opaque;
			const transmissiveObjects = currentRenderList.transmissive;

currentRenderState.setupLights();

if ( camera.isArrayCamera ) {

const cameras = camera.cameras;

if ( transmissiveObjects.length > 0 ) {

for ( let i = 0, l = cameras.length; i < l; i ++ ) {

const camera2 = cameras[ i ];

renderTransmissionPass( opaqueObjects, transmissiveObjects, scene, camera2 );

}

if ( _renderBackground ) background.render( scene );

for ( let i = 0, l = cameras.length; i < l; i ++ ) {

const camera2 = cameras[ i ];

renderScene( currentRenderList, scene, camera2, camera2.viewport );

}

} else {

if ( transmissiveObjects.length > 0 ) renderTransmissionPass( opaqueObjects, transmissiveObjects, scene, camera );

if ( _renderBackground ) background.render( scene );

renderScene( currentRenderList, scene, camera );

}

if ( _currentRenderTarget !== null && _currentActiveMipmapLevel === 0 ) {

// resolve multisample renderbuffers to a single-sample texture if necessary

textures.updateMultisampleRenderTarget( _currentRenderTarget );

// Generate mipmap if we're using any kind of mipmap filtering

textures.updateRenderTargetMipmap( _currentRenderTarget );

}

if ( scene.isScene === true ) scene.onAfterRender( _this, scene, camera );

// _gl.finish();

bindingStates.resetDefaultState();
			_currentMaterialId = - 1;
			_currentCamera = null;

renderStateStack.pop();

if ( renderStateStack.length > 0 ) {

currentRenderState = renderStateStack[ renderStateStack.length - 1 ];

if ( _clippingEnabled === true ) clipping.setGlobalState( _this.clippingPlanes, currentRenderState.state.camera );

} else {

currentRenderState = null;

}

renderListStack.pop();

if ( renderListStack.length > 0 ) {

currentRenderList = renderListStack[ renderListStack.length - 1 ];

} else {

currentRenderList = null;

}

};

function projectObject( object, camera, groupOrder, sortObjects ) {

if ( object.visible === false ) return;

const visible = object.layers.test( camera.layers );

if ( visible ) {

if ( object.isGroup ) {

groupOrder = object.renderOrder;

} else if ( object.isLOD ) {

if ( object.autoUpdate === true ) object.update( camera );

} else if ( object.isLight ) {

currentRenderState.pushLight( object );

if ( object.castShadow ) {

currentRenderState.pushShadow( object );

}

} else if ( object.isSprite ) {

if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {

if ( sortObjects ) {

_vector4.setFromMatrixPosition( object.matrixWorld )
								.applyMatrix4( _projScreenMatrix );

}

const geometry = objects.update( object );
						const material = object.material;

if ( material.visible ) {

currentRenderList.push( object, geometry, material, groupOrder, _vector4.z, null );

}

} else if ( object.isMesh || object.isLine || object.isPoints ) {

if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {

const geometry = objects.update( object );
						const material = object.material;

if ( sortObjects ) {

if ( object.boundingSphere !== undefined ) {

if ( object.boundingSphere === null ) object.computeBoundingSphere();
								_vector4.copy( object.boundingSphere.center );

} else {

if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
								_vector4.copy( geometry.boundingSphere.center );

}

_vector4
								.applyMatrix4( object.matrixWorld )
								.applyMatrix4( _projScreenMatrix );

}

if ( Array.isArray( material ) ) {

const groups = geometry.groups;

for ( let i = 0, l = groups.length; i < l; i ++ ) {

const group = groups[ i ];
								const groupMaterial = material[ group.materialIndex ];

if ( groupMaterial && groupMaterial.visible ) {

currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector4.z, group );

}

} else if ( material.visible ) {

currentRenderList.push( object, geometry, material, groupOrder, _vector4.z, null );

}

const children = object.children;

for ( let i = 0, l = children.length; i < l; i ++ ) {

projectObject( children[ i ], camera, groupOrder, sortObjects );

}

function renderScene( currentRenderList, scene, camera, viewport ) {

const opaqueObjects = currentRenderList.opaque;
			const transmissiveObjects = currentRenderList.transmissive;
			const transparentObjects = currentRenderList.transparent;

currentRenderState.setupLightsView( camera );

if ( _clippingEnabled === true ) clipping.setGlobalState( _this.clippingPlanes, camera );

if ( viewport ) state.viewport( _currentViewport.copy( viewport ) );

if ( opaqueObjects.length > 0 ) renderObjects( opaqueObjects, scene, camera );
			if ( transmissiveObjects.length > 0 ) renderObjects( transmissiveObjects, scene, camera );
			if ( transparentObjects.length > 0 ) renderObjects( transparentObjects, scene, camera );

// Ensure depth buffer writing is enabled so it can be cleared on next render

state.buffers.depth.setTest( true );
			state.buffers.depth.setMask( true );
			state.buffers.color.setMask( true );

state.setPolygonOffset( false );

}

function renderTransmissionPass( opaqueObjects, transmissiveObjects, scene, camera ) {

const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;

if ( overrideMaterial !== null ) {

return;

}

if ( currentRenderState.state.transmissionRenderTarget[ camera.id ] === undefined ) {

currentRenderState.state.transmissionRenderTarget[ camera.id ] = new WebGLRenderTarget( 1, 1, {
					generateMipmaps: true,
					type: ( extensions.has( 'EXT_color_buffer_half_float' ) || extensions.has( 'EXT_color_buffer_float' ) ) ? HalfFloatType : UnsignedByteType,
					minFilter: LinearMipmapLinearFilter,
					samples: 4,
					stencilBuffer: stencil,
					resolveDepthBuffer: false,
					resolveStencilBuffer: false,
					colorSpace: ColorManagement.workingColorSpace,
				} );

// debug

/*
				const geometry = new PlaneGeometry();
				const material = new MeshBasicMaterial( { map: _transmissionRenderTarget.texture } );

const mesh = new Mesh( geometry, material );
				scene.add( mesh );
				*/

}

const transmissionRenderTarget = currentRenderState.state.transmissionRenderTarget[ camera.id ];

const activeViewport = camera.viewport || _currentViewport;
			transmissionRenderTarget.setSize( activeViewport.z * _this.transmissionResolutionScale, activeViewport.w * _this.transmissionResolutionScale );

const currentRenderTarget = _this.getRenderTarget();
			_this.setRenderTarget( transmissionRenderTarget );

_this.getClearColor( _currentClearColor );
			_currentClearAlpha = _this.getClearAlpha();
			if ( _currentClearAlpha < 1 ) _this.setClearColor( 0xffffff, 0.5 );

_this.clear();

if ( _renderBackground ) background.render( scene );

// Turn off the features which can affect the frag color for opaque objects pass.
			// Otherwise they are applied twice in opaque objects pass and transmission objects pass.
			const currentToneMapping = _this.toneMapping;
			_this.toneMapping = NoToneMapping;

// Remove viewport from camera to avoid nested render calls resetting viewport to it (e.g Reflector).
			// Transmission render pass requires viewport to match the transmissionRenderTarget.
			const currentCameraViewport = camera.viewport;
			if ( camera.viewport !== undefined ) camera.viewport = undefined;

currentRenderState.setupLightsView( camera );

if ( _clippingEnabled === true ) clipping.setGlobalState( _this.clippingPlanes, camera );

renderObjects( opaqueObjects, scene, camera );

textures.updateMultisampleRenderTarget( transmissionRenderTarget );
			textures.updateRenderTargetMipmap( transmissionRenderTarget );

if ( extensions.has( 'WEBGL_multisampled_render_to_texture' ) === false ) { // see #28131

let renderTargetNeedsUpdate = false;

for ( let i = 0, l = transmissiveObjects.length; i < l; i ++ ) {

const renderItem = transmissiveObjects[ i ];

const object = renderItem.object;
					const geometry = renderItem.geometry;
					const material = renderItem.material;
					const group = renderItem.group;

if ( material.side === DoubleSide && object.layers.test( camera.layers ) ) {

const currentSide = material.side;

material.side = BackSide;
						material.needsUpdate = true;

renderObject( object, scene, camera, geometry, material, group );

material.side = currentSide;
						material.needsUpdate = true;

renderTargetNeedsUpdate = true;

}

if ( renderTargetNeedsUpdate === true ) {

textures.updateMultisampleRenderTarget( transmissionRenderTarget );
					textures.updateRenderTargetMipmap( transmissionRenderTarget );

}

_this.setRenderTarget( currentRenderTarget );

_this.setClearColor( _currentClearColor, _currentClearAlpha );

if ( currentCameraViewport !== undefined ) camera.viewport = currentCameraViewport;

_this.toneMapping = currentToneMapping;

}

function renderObjects( renderList, scene, camera ) {

const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;

for ( let i = 0, l = renderList.length; i < l; i ++ ) {

const renderItem = renderList[ i ];

const object = renderItem.object;
				const geometry = renderItem.geometry;
				const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
				const group = renderItem.group;

if ( object.layers.test( camera.layers ) ) {

renderObject( object, scene, camera, geometry, material, group );

}

function renderObject( object, scene, camera, geometry, material, group ) {

object.onBeforeRender( _this, scene, camera, geometry, material, group );

object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

material.onBeforeRender( _this, scene, camera, geometry, object, group );

if ( material.transparent === true && material.side === DoubleSide && material.forceSinglePass === false ) {

material.side = BackSide;
				material.needsUpdate = true;
				_this.renderBufferDirect( camera, scene, geometry, material, object, group );

material.side = FrontSide;
				material.needsUpdate = true;
				_this.renderBufferDirect( camera, scene, geometry, material, object, group );

material.side = DoubleSide;

} else {

_this.renderBufferDirect( camera, scene, geometry, material, object, group );

}

object.onAfterRender( _this, scene, camera, geometry, material, group );

}

function getProgram( material, scene, object ) {

if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

const materialProperties = properties.get( material );

const lights = currentRenderState.state.lights;
			const shadowsArray = currentRenderState.state.shadowsArray;

const lightsStateVersion = lights.state.version;

const parameters = programCache.getParameters( material, lights.state, shadowsArray, scene, object );
			const programCacheKey = programCache.getProgramCacheKey( parameters );

let programs = materialProperties.programs;

// always update environment and fog - changing these trigger an getProgram call, but it's possible that the program doesn't change

materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
			materialProperties.fog = scene.fog;
			materialProperties.envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || materialProperties.environment );
			materialProperties.envMapRotation = ( materialProperties.environment !== null && material.envMap === null ) ? scene.environmentRotation : material.envMapRotation;

if ( programs === undefined ) {

// new material

material.addEventListener( 'dispose', onMaterialDispose );

programs = new Map();
				materialProperties.programs = programs;

}

let program = programs.get( programCacheKey );

if ( program !== undefined ) {

// early out if program and light state is identical

if ( materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion ) {

updateCommonMaterialProperties( material, parameters );

return program;

}

} else {

parameters.uniforms = programCache.getUniforms( material );

material.onBeforeCompile( parameters, _this );

program = programCache.acquireProgram( parameters, programCacheKey );
				programs.set( programCacheKey, program );

materialProperties.uniforms = parameters.uniforms;

}

const uniforms = materialProperties.uniforms;

if ( ( ! material.isShaderMaterial && ! material.isRawShaderMaterial ) || material.clipping === true ) {

uniforms.clippingPlanes = clipping.uniform;

}

updateCommonMaterialProperties( material, parameters );

// store the light setup it was created for

materialProperties.needsLights = materialNeedsLights( material );
			materialProperties.lightsStateVersion = lightsStateVersion;

if ( materialProperties.needsLights ) {

// wire up the material to this renderer's lighting state

uniforms.ambientLightColor.value = lights.state.ambient;
				uniforms.lightProbe.value = lights.state.probe;
				uniforms.directionalLights.value = lights.state.directional;
				uniforms.directionalLightShadows.value = lights.state.directionalShadow;
				uniforms.spotLights.value = lights.state.spot;
				uniforms.spotLightShadows.value = lights.state.spotShadow;
				uniforms.rectAreaLights.value = lights.state.rectArea;
				uniforms.ltc_1.value = lights.state.rectAreaLTC1;
				uniforms.ltc_2.value = lights.state.rectAreaLTC2;
				uniforms.pointLights.value = lights.state.point;
				uniforms.pointLightShadows.value = lights.state.pointShadow;
				uniforms.hemisphereLights.value = lights.state.hemi;

uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
				uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
				uniforms.spotShadowMap.value = lights.state.spotShadowMap;
				uniforms.spotLightMatrix.value = lights.state.spotLightMatrix;
				uniforms.spotLightMap.value = lights.state.spotLightMap;
				uniforms.pointShadowMap.value = lights.state.pointShadowMap;
				uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
				// TODO (abelnation): add area lights shadow info to uniforms

}

materialProperties.currentProgram = program;
			materialProperties.uniformsList = null;

return program;

}

function getUniformList( materialProperties ) {

if ( materialProperties.uniformsList === null ) {

const progUniforms = materialProperties.currentProgram.getUniforms();
				materialProperties.uniformsList = WebGLUniforms.seqWithValue( progUniforms.seq, materialProperties.uniforms );

}

return materialProperties.uniformsList;

}

function updateCommonMaterialProperties( material, parameters ) {

const materialProperties = properties.get( material );

materialProperties.outputColorSpace = parameters.outputColorSpace;
			materialProperties.batching = parameters.batching;
			materialProperties.batchingColor = parameters.batchingColor;
			materialProperties.instancing = parameters.instancing;
			materialProperties.instancingColor = parameters.instancingColor;
			materialProperties.instancingMorph = parameters.instancingMorph;
			materialProperties.skinning = parameters.skinning;
			materialProperties.morphTargets = parameters.morphTargets;
			materialProperties.morphNormals = parameters.morphNormals;
			materialProperties.morphColors = parameters.morphColors;
			materialProperties.morphTargetsCount = parameters.morphTargetsCount;
			materialProperties.numClippingPlanes = parameters.numClippingPlanes;
			materialProperties.numIntersection = parameters.numClipIntersection;
			materialProperties.vertexAlphas = parameters.vertexAlphas;
			materialProperties.vertexTangents = parameters.vertexTangents;
			materialProperties.toneMapping = parameters.toneMapping;

}

function setProgram( camera, scene, geometry, material, object ) {

if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

textures.resetTextureUnits();

const fog = scene.fog;
			const environment = material.isMeshStandardMaterial ? scene.environment : null;
			const colorSpace = ( _currentRenderTarget === null ) ? _this.outputColorSpace : ( _currentRenderTarget.isXRRenderTarget === true ? _currentRenderTarget.texture.colorSpace : LinearSRGBColorSpace );
			const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment );
			const vertexAlphas = material.vertexColors === true && !! geometry.attributes.color && geometry.attributes.color.itemSize === 4;
			const vertexTangents = !! geometry.attributes.tangent && ( !! material.normalMap || material.anisotropy > 0 );
			const morphTargets = !! geometry.morphAttributes.position;
			const morphNormals = !! geometry.morphAttributes.normal;
			const morphColors = !! geometry.morphAttributes.color;

let toneMapping = NoToneMapping;

if ( material.toneMapped ) {

if ( _currentRenderTarget === null || _currentRenderTarget.isXRRenderTarget === true ) {

toneMapping = _this.toneMapping;

}

const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
			const morphTargetsCount = ( morphAttribute !== undefined ) ? morphAttribute.length : 0;

const materialProperties = properties.get( material );
			const lights = currentRenderState.state.lights;

if ( _clippingEnabled === true ) {

if ( _localClippingEnabled === true || camera !== _currentCamera ) {

const useCache =
						camera === _currentCamera &&
						material.id === _currentMaterialId;

// we might want to call this function with some ClippingGroup
					// object instead of the material, once it becomes feasible
					// (#8465, #8379)
					clipping.setState( material, camera, useCache );

}

let needsProgramChange = false;

if ( material.version === materialProperties.__version ) {

if ( materialProperties.needsLights && ( materialProperties.lightsStateVersion !== lights.state.version ) ) {

needsProgramChange = true;

} else if ( materialProperties.outputColorSpace !== colorSpace ) {

needsProgramChange = true;

} else if ( object.isBatchedMesh && materialProperties.batching === false ) {

needsProgramChange = true;

} else if ( ! object.isBatchedMesh && materialProperties.batching === true ) {

needsProgramChange = true;

} else if ( object.isBatchedMesh && materialProperties.batchingColor === true && object.colorTexture === null ) {

needsProgramChange = true;

} else if ( object.isBatchedMesh && materialProperties.batchingColor === false && object.colorTexture !== null ) {

needsProgramChange = true;

} else if ( object.isInstancedMesh && materialProperties.instancing === false ) {

needsProgramChange = true;

} else if ( ! object.isInstancedMesh && materialProperties.instancing === true ) {

needsProgramChange = true;

} else if ( object.isSkinnedMesh && materialProperties.skinning === false ) {

needsProgramChange = true;

} else if ( ! object.isSkinnedMesh && materialProperties.skinning === true ) {

needsProgramChange = true;

} else if ( object.isInstancedMesh && materialProperties.instancingColor === true && object.instanceColor === null ) {

needsProgramChange = true;

} else if ( object.isInstancedMesh && materialProperties.instancingColor === false && object.instanceColor !== null ) {

needsProgramChange = true;

} else if ( object.isInstancedMesh && materialProperties.instancingMorph === true && object.morphTexture === null ) {

needsProgramChange = true;

} else if ( object.isInstancedMesh && materialProperties.instancingMorph === false && object.morphTexture !== null ) {

needsProgramChange = true;

} else if ( materialProperties.envMap !== envMap ) {

needsProgramChange = true;

} else if ( material.fog === true && materialProperties.fog !== fog ) {

needsProgramChange = true;

} else if ( materialProperties.numClippingPlanes !== undefined &&
					( materialProperties.numClippingPlanes !== clipping.numPlanes ||
					materialProperties.numIntersection !== clipping.numIntersection ) ) {

needsProgramChange = true;

} else if ( materialProperties.vertexAlphas !== vertexAlphas ) {

needsProgramChange = true;

} else if ( materialProperties.vertexTangents !== vertexTangents ) {

needsProgramChange = true;

} else if ( materialProperties.morphTargets !== morphTargets ) {

needsProgramChange = true;

} else if ( materialProperties.morphNormals !== morphNormals ) {

needsProgramChange = true;

} else if ( materialProperties.morphColors !== morphColors ) {

needsProgramChange = true;

} else if ( materialProperties.toneMapping !== toneMapping ) {

needsProgramChange = true;

} else if ( materialProperties.morphTargetsCount !== morphTargetsCount ) {

needsProgramChange = true;

}

} else {

needsProgramChange = true;
				materialProperties.__version = material.version;

}

let program = materialProperties.currentProgram;

if ( needsProgramChange === true ) {

program = getProgram( material, scene, object );

}

let refreshProgram = false;
			let refreshMaterial = false;
			let refreshLights = false;

const p_uniforms = program.getUniforms(),
				m_uniforms = materialProperties.uniforms;

if ( state.useProgram( program.program ) ) {

refreshProgram = true;
				refreshMaterial = true;
				refreshLights = true;

}

if ( material.id !== _currentMaterialId ) {

_currentMaterialId = material.id;

refreshMaterial = true;

}

if ( refreshProgram || _currentCamera !== camera ) {

// common camera uniforms

const reverseDepthBuffer = state.buffers.depth.getReversed();

if ( reverseDepthBuffer ) {

_currentProjectionMatrix.copy( camera.projectionMatrix );

toNormalizedProjectionMatrix( _currentProjectionMatrix );
					toReversedProjectionMatrix( _currentProjectionMatrix );

p_uniforms.setValue( _gl, 'projectionMatrix', _currentProjectionMatrix );

} else {

p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );

}

p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );

const uCamPos = p_uniforms.map.cameraPosition;

if ( uCamPos !== undefined ) {

uCamPos.setValue( _gl, _vector3.setFromMatrixPosition( camera.matrixWorld ) );

}

if ( capabilities.logarithmicDepthBuffer ) {

p_uniforms.setValue( _gl, 'logDepthBufFC',
						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

}

// consider moving isOrthographic to UniformLib and WebGLMaterials, see https://github.com/mrdoob/three.js/pull/26467#issuecomment-1645185067

if ( material.isMeshPhongMaterial ||
					material.isMeshToonMaterial ||
					material.isMeshLambertMaterial ||
					material.isMeshBasicMaterial ||
					material.isMeshStandardMaterial ||
					material.isShaderMaterial ) {

p_uniforms.setValue( _gl, 'isOrthographic', camera.isOrthographicCamera === true );

}

if ( _currentCamera !== camera ) {

_currentCamera = camera;

// lighting uniforms depend on the camera so enforce an update
					// now, in case this material supports lights - or later, when
					// the next material that does gets activated:

refreshMaterial = true;		// set to true on material change
					refreshLights = true;		// remains set until update done

}

// skinning and morph target uniforms must be set even if material didn't change
			// auto-setting of texture unit for bone and morph texture must go before other textures
			// otherwise textures used for skinning and morphing can take over texture units reserved for other material textures

if ( object.isSkinnedMesh ) {

p_uniforms.setOptional( _gl, object, 'bindMatrix' );
				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );

const skeleton = object.skeleton;

if ( skeleton ) {

if ( skeleton.boneTexture === null ) skeleton.computeBoneTexture();

p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures );

}

if ( object.isBatchedMesh ) {

p_uniforms.setOptional( _gl, object, 'batchingTexture' );
				p_uniforms.setValue( _gl, 'batchingTexture', object._matricesTexture, textures );

p_uniforms.setOptional( _gl, object, 'batchingIdTexture' );
				p_uniforms.setValue( _gl, 'batchingIdTexture', object._indirectTexture, textures );

p_uniforms.setOptional( _gl, object, 'batchingColorTexture' );
				if ( object._colorsTexture !== null ) {

p_uniforms.setValue( _gl, 'batchingColorTexture', object._colorsTexture, textures );

}

const morphAttributes = geometry.morphAttributes;

if ( morphAttributes.position !== undefined || morphAttributes.normal !== undefined || ( morphAttributes.color !== undefined ) ) {

morphtargets.update( object, geometry, program );

}

if ( refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow ) {

materialProperties.receiveShadow = object.receiveShadow;
				p_uniforms.setValue( _gl, 'receiveShadow', object.receiveShadow );

}

// https://github.com/mrdoob/three.js/pull/24467#issuecomment-1209031512

if ( material.isMeshGouraudMaterial && material.envMap !== null ) {

m_uniforms.envMap.value = envMap;

m_uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap.isRenderTargetTexture === false ) ? - 1 : 1;

}

if ( material.isMeshStandardMaterial && material.envMap === null && scene.environment !== null ) {

m_uniforms.envMapIntensity.value = scene.environmentIntensity;

}

if ( refreshMaterial ) {

p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );

if ( materialProperties.needsLights ) {

// the current material requires lighting info

// note: all lighting uniforms are always set correctly
					// they simply reference the renderer's state for their
					// values
					//
					// use the current material's .needsUpdate flags to set
					// the GL state when required

markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

}

// refresh uniforms common to several materials

if ( fog && material.fog === true ) {

materials.refreshFogUniforms( m_uniforms, fog );

}

materials.refreshMaterialUniforms( m_uniforms, material, _pixelRatio, _height, currentRenderState.state.transmissionRenderTarget[ camera.id ] );

WebGLUniforms.upload( _gl, getUniformList( materialProperties ), m_uniforms, textures );

}

if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {

WebGLUniforms.upload( _gl, getUniformList( materialProperties ), m_uniforms, textures );
				material.uniformsNeedUpdate = false;

}

if ( material.isSpriteMaterial ) {

p_uniforms.setValue( _gl, 'center', object.center );

}

// common matrices

p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );

// UBOs

if ( material.isShaderMaterial || material.isRawShaderMaterial ) {

const groups = material.uniformsGroups;

for ( let i = 0, l = groups.length; i < l; i ++ ) {

const group = groups[ i ];

uniformsGroups.update( group, program );
					uniformsGroups.bind( group, program );

}

return program;

}

// If uniforms are marked as clean, they don't need to be loaded to the GPU.

function markUniformsLightsNeedsUpdate( uniforms, value ) {

uniforms.ambientLightColor.needsUpdate = value;
			uniforms.lightProbe.needsUpdate = value;

uniforms.directionalLights.needsUpdate = value;
			uniforms.directionalLightShadows.needsUpdate = value;
			uniforms.pointLights.needsUpdate = value;
			uniforms.pointLightShadows.needsUpdate = value;
			uniforms.spotLights.needsUpdate = value;
			uniforms.spotLightShadows.needsUpdate = value;
			uniforms.rectAreaLights.needsUpdate = value;
			uniforms.hemisphereLights.needsUpdate = value;

}

function materialNeedsLights( material ) {

return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial ||
				material.isMeshStandardMaterial || material.isShadowMaterial ||
				( material.isShaderMaterial && material.lights === true );

}

this.getActiveCubeFace = function () {

return _currentActiveCubeFace;

};

this.getActiveMipmapLevel = function () {

return _currentActiveMipmapLevel;

};

this.getRenderTarget = function () {

return _currentRenderTarget;

};

this.setRenderTargetTextures = function ( renderTarget, colorTexture, depthTexture ) {

properties.get( renderTarget.texture ).__webglTexture = colorTexture;
			properties.get( renderTarget.depthTexture ).__webglTexture = depthTexture;

const renderTargetProperties = properties.get( renderTarget );
			renderTargetProperties.__hasExternalTextures = true;

renderTargetProperties.__autoAllocateDepthBuffer = depthTexture === undefined;

if ( ! renderTargetProperties.__autoAllocateDepthBuffer ) {

// The multisample_render_to_texture extension doesn't work properly if there
				// are midframe flushes and an external depth buffer. Disable use of the extension.
				if ( extensions.has( 'WEBGL_multisampled_render_to_texture' ) === true ) {

console.warn( 'THREE.WebGLRenderer: Render-to-texture extension was disabled because an external texture was provided' );
					renderTargetProperties.__useRenderToTexture = false;

}

};

this.setRenderTargetFramebuffer = function ( renderTarget, defaultFramebuffer ) {

const renderTargetProperties = properties.get( renderTarget );
			renderTargetProperties.__webglFramebuffer = defaultFramebuffer;
			renderTargetProperties.__useDefaultFramebuffer = defaultFramebuffer === undefined;

};

const _scratchFrameBuffer = _gl.createFramebuffer();
		this.setRenderTarget = function ( renderTarget, activeCubeFace = 0, activeMipmapLevel = 0 ) {

_currentRenderTarget = renderTarget;
			_currentActiveCubeFace = activeCubeFace;
			_currentActiveMipmapLevel = activeMipmapLevel;

let useDefaultFramebuffer = true;
			let framebuffer = null;
			let isCube = false;
			let isRenderTarget3D = false;

if ( renderTarget ) {

const renderTargetProperties = properties.get( renderTarget );

if ( renderTargetProperties.__useDefaultFramebuffer !== undefined ) {

// We need to make sure to rebind the framebuffer.
					state.bindFramebuffer( _gl.FRAMEBUFFER, null );
					useDefaultFramebuffer = false;

} else if ( renderTargetProperties.__webglFramebuffer === undefined ) {

textures.setupRenderTarget( renderTarget );

} else if ( renderTargetProperties.__hasExternalTextures ) {

// Color and depth texture must be rebound in order for the swapchain to update.
					textures.rebindTextures( renderTarget, properties.get( renderTarget.texture ).__webglTexture, properties.get( renderTarget.depthTexture ).__webglTexture );

} else if ( renderTarget.depthBuffer ) {

// check if the depth texture is already bound to the frame buffer and that it's been initialized
					const depthTexture = renderTarget.depthTexture;
					if ( renderTargetProperties.__boundDepthTexture !== depthTexture ) {

// check if the depth texture is compatible
						if (
							depthTexture !== null &&
							properties.has( depthTexture ) &&
							( renderTarget.width !== depthTexture.image.width || renderTarget.height !== depthTexture.image.height )
						) {

throw new Error( 'WebGLRenderTarget: Attached DepthTexture is initialized to the incorrect size.' );

}

// Swap the depth buffer to the currently attached one
						textures.setupDepthRenderbuffer( renderTarget );

}

const texture = renderTarget.texture;

if ( texture.isData3DTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {

isRenderTarget3D = true;

}

const __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;

if ( renderTarget.isWebGLCubeRenderTarget ) {

if ( Array.isArray( __webglFramebuffer[ activeCubeFace ] ) ) {

framebuffer = __webglFramebuffer[ activeCubeFace ][ activeMipmapLevel ];

} else {

framebuffer = __webglFramebuffer[ activeCubeFace ];

}

isCube = true;

} else if ( ( renderTarget.samples > 0 ) && textures.useMultisampledRTT( renderTarget ) === false ) {

framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer;

} else {

if ( Array.isArray( __webglFramebuffer ) ) {

framebuffer = __webglFramebuffer[ activeMipmapLevel ];

} else {

framebuffer = __webglFramebuffer;

}

_currentViewport.copy( renderTarget.viewport );
				_currentScissor.copy( renderTarget.scissor );
				_currentScissorTest = renderTarget.scissorTest;

} else {

_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor();
				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor();
				_currentScissorTest = _scissorTest;

}

// Use a scratch frame buffer if rendering to a mip level to avoid depth buffers
			// being bound that are different sizes.
			if ( activeMipmapLevel !== 0 ) {

framebuffer = _scratchFrameBuffer;

}

const framebufferBound = state.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

if ( framebufferBound && useDefaultFramebuffer ) {

state.drawBuffers( renderTarget, framebuffer );

}

state.viewport( _currentViewport );
			state.scissor( _currentScissor );
			state.setScissorTest( _currentScissorTest );

if ( isCube ) {

const textureProperties = properties.get( renderTarget.texture );
				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel );

} else if ( isRenderTarget3D ) {

const textureProperties = properties.get( renderTarget.texture );
				const layer = activeCubeFace;
				_gl.framebufferTextureLayer( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, textureProperties.__webglTexture, activeMipmapLevel, layer );

} else if ( renderTarget !== null && activeMipmapLevel !== 0 ) {

// Only bind the frame buffer if we are using a scratch frame buffer to render to a mipmap.
				// If we rebind the texture when using a multi sample buffer then an error about inconsistent samples will be thrown.
				const textureProperties = properties.get( renderTarget.texture );
				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, textureProperties.__webglTexture, activeMipmapLevel );

}

_currentMaterialId = - 1; // reset current material to ensure correct uniform bindings

};

this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {

if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
				return;

}

let framebuffer = properties.get( renderTarget ).__webglFramebuffer;

if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) {

framebuffer = framebuffer[ activeCubeFaceIndex ];

}

if ( framebuffer ) {

state.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

try {

const texture = renderTarget.texture;
					const textureFormat = texture.format;
					const textureType = texture.type;

if ( ! capabilities.textureFormatReadable( textureFormat ) ) {

console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
						return;

}

if ( ! capabilities.textureTypeReadable( textureType ) ) {

console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
						return;

}

// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)

if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );

}

} finally {

// restore framebuffer of current render target if necessary

const framebuffer = ( _currentRenderTarget !== null ) ? properties.get( _currentRenderTarget ).__webglFramebuffer : null;
					state.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

}

};

this.readRenderTargetPixelsAsync = async function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {

if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

throw new Error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );

}

let framebuffer = properties.get( renderTarget ).__webglFramebuffer;
			if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) {

framebuffer = framebuffer[ activeCubeFaceIndex ];

}

if ( framebuffer ) {

const texture = renderTarget.texture;
				const textureFormat = texture.format;
				const textureType = texture.type;

if ( ! capabilities.textureFormatReadable( textureFormat ) ) {

throw new Error( 'THREE.WebGLRenderer.readRenderTargetPixelsAsync: renderTarget is not in RGBA or implementation defined format.' );

}

if ( ! capabilities.textureTypeReadable( textureType ) ) {

throw new Error( 'THREE.WebGLRenderer.readRenderTargetPixelsAsync: renderTarget is not in UnsignedByteType or implementation defined type.' );

}

// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
				if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

// set the active frame buffer to the one we want to read
					state.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

const glBuffer = _gl.createBuffer();
					_gl.bindBuffer( _gl.PIXEL_PACK_BUFFER, glBuffer );
					_gl.bufferData( _gl.PIXEL_PACK_BUFFER, buffer.byteLength, _gl.STREAM_READ );
					_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), 0 );

// reset the frame buffer to the currently set buffer before waiting
					const currFramebuffer = _currentRenderTarget !== null ? properties.get( _currentRenderTarget ).__webglFramebuffer : null;
					state.bindFramebuffer( _gl.FRAMEBUFFER, currFramebuffer );

// check if the commands have finished every 8 ms
					const sync = _gl.fenceSync( _gl.SYNC_GPU_COMMANDS_COMPLETE, 0 );

_gl.flush();

await probeAsync( _gl, sync, 4 );

// read the data and delete the buffer
					_gl.bindBuffer( _gl.PIXEL_PACK_BUFFER, glBuffer );
					_gl.getBufferSubData( _gl.PIXEL_PACK_BUFFER, 0, buffer );
					_gl.deleteBuffer( glBuffer );
					_gl.deleteSync( sync );

return buffer;

} else {

throw new Error( 'THREE.WebGLRenderer.readRenderTargetPixelsAsync: requested read bounds are out of range.' );

}

};

this.copyFramebufferToTexture = function ( texture, position = null, level = 0 ) {

// support previous signature with position first
			if ( texture.isTexture !== true ) {

// @deprecated, r165
				warnOnce( 'WebGLRenderer: copyFramebufferToTexture function signature has changed.' );

position = arguments[ 0 ] || null;
				texture = arguments[ 1 ];

}

const levelScale = Math.pow( 2, - level );
			const width = Math.floor( texture.image.width * levelScale );
			const height = Math.floor( texture.image.height * levelScale );

const x = position !== null ? position.x : 0;
			const y = position !== null ? position.y : 0;

textures.setTexture2D( texture, 0 );

_gl.copyTexSubImage2D( _gl.TEXTURE_2D, level, 0, 0, x, y, width, height );

state.unbindTexture();

};

const _srcFramebuffer = _gl.createFramebuffer();
		const _dstFramebuffer = _gl.createFramebuffer();
		this.copyTextureToTexture = function ( srcTexture, dstTexture, srcRegion = null, dstPosition = null, srcLevel = 0, dstLevel = null ) {

// support previous signature with dstPosition first
			if ( srcTexture.isTexture !== true ) {

// @deprecated, r165
				warnOnce( 'WebGLRenderer: copyTextureToTexture function signature has changed.' );

dstPosition = arguments[ 0 ] || null;
				srcTexture = arguments[ 1 ];
				dstTexture = arguments[ 2 ];
				dstLevel = arguments[ 3 ] || 0;
				srcRegion = null;

}

// support the previous signature with just a single dst mipmap level
			if ( dstLevel === null ) {

if ( srcLevel !== 0 ) {

// @deprecated, r171
					warnOnce( 'WebGLRenderer: copyTextureToTexture function signature has changed to support src and dst mipmap levels.' );
					dstLevel = srcLevel;
					srcLevel = 0;

} else {

dstLevel = 0;

}

// gather the necessary dimensions to copy
			let width, height, depth, minX, minY, minZ;
			let dstX, dstY, dstZ;
			const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ dstLevel ] : srcTexture.image;
			if ( srcRegion !== null ) {

width = srcRegion.max.x - srcRegion.min.x;
				height = srcRegion.max.y - srcRegion.min.y;
				depth = srcRegion.isBox3 ? srcRegion.max.z - srcRegion.min.z : 1;
				minX = srcRegion.min.x;
				minY = srcRegion.min.y;
				minZ = srcRegion.isBox3 ? srcRegion.min.z : 0;

} else {

const levelScale = Math.pow( 2, - srcLevel );
				width = Math.floor( image.width * levelScale );
				height = Math.floor( image.height * levelScale );
				if ( srcTexture.isDataArrayTexture ) {

depth = image.depth;

} else if ( srcTexture.isData3DTexture ) {

depth = Math.floor( image.depth * levelScale );

} else {

depth = 1;

}

minX = 0;
				minY = 0;
				minZ = 0;

}

if ( dstPosition !== null ) {

dstX = dstPosition.x;
				dstY = dstPosition.y;
				dstZ = dstPosition.z;

} else {

dstX = 0;
				dstY = 0;
				dstZ = 0;

}

// Set up the destination target
			const glFormat = utils.convert( dstTexture.format );
			const glType = utils.convert( dstTexture.type );
			let glTarget;

if ( dstTexture.isData3DTexture ) {

textures.setTexture3D( dstTexture, 0 );
				glTarget = _gl.TEXTURE_3D;

} else if ( dstTexture.isDataArrayTexture || dstTexture.isCompressedArrayTexture ) {

textures.setTexture2DArray( dstTexture, 0 );
				glTarget = _gl.TEXTURE_2D_ARRAY;

} else {

textures.setTexture2D( dstTexture, 0 );
				glTarget = _gl.TEXTURE_2D;

}

_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY );
			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha );
			_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment );

// used for copying data from cpu
			const currentUnpackRowLen = _gl.getParameter( _gl.UNPACK_ROW_LENGTH );
			const currentUnpackImageHeight = _gl.getParameter( _gl.UNPACK_IMAGE_HEIGHT );
			const currentUnpackSkipPixels = _gl.getParameter( _gl.UNPACK_SKIP_PIXELS );
			const currentUnpackSkipRows = _gl.getParameter( _gl.UNPACK_SKIP_ROWS );
			const currentUnpackSkipImages = _gl.getParameter( _gl.UNPACK_SKIP_IMAGES );

_gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, image.width );
			_gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, image.height );
			_gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, minX );
			_gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, minY );
			_gl.pixelStorei( _gl.UNPACK_SKIP_IMAGES, minZ );

// set up the src texture
			const isSrc3D = srcTexture.isDataArrayTexture || srcTexture.isData3DTexture;
			const isDst3D = dstTexture.isDataArrayTexture || dstTexture.isData3DTexture;
			if ( srcTexture.isDepthTexture ) {

const srcTextureProperties = properties.get( srcTexture );
				const dstTextureProperties = properties.get( dstTexture );
				const srcRenderTargetProperties = properties.get( srcTextureProperties.__renderTarget );
				const dstRenderTargetProperties = properties.get( dstTextureProperties.__renderTarget );
				state.bindFramebuffer( _gl.READ_FRAMEBUFFER, srcRenderTargetProperties.__webglFramebuffer );
				state.bindFramebuffer( _gl.DRAW_FRAMEBUFFER, dstRenderTargetProperties.__webglFramebuffer );

for ( let i = 0; i < depth; i ++ ) {

// if the source or destination are a 3d target then a layer needs to be bound
					if ( isSrc3D ) {

_gl.framebufferTextureLayer( _gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, properties.get( srcTexture ).__webglTexture, srcLevel, minZ + i );
						_gl.framebufferTextureLayer( _gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, properties.get( dstTexture ).__webglTexture, dstLevel, dstZ + i );

}

_gl.blitFramebuffer( minX, minY, width, height, dstX, dstY, width, height, _gl.DEPTH_BUFFER_BIT, _gl.NEAREST );

}

state.bindFramebuffer( _gl.READ_FRAMEBUFFER, null );
				state.bindFramebuffer( _gl.DRAW_FRAMEBUFFER, null );

} else if ( srcLevel !== 0 || srcTexture.isRenderTargetTexture || properties.has( srcTexture ) ) {

// get the appropriate frame buffers
				const srcTextureProperties = properties.get( srcTexture );
				const dstTextureProperties = properties.get( dstTexture );

// bind the frame buffer targets
				state.bindFramebuffer( _gl.READ_FRAMEBUFFER, _srcFramebuffer );
				state.bindFramebuffer( _gl.DRAW_FRAMEBUFFER, _dstFramebuffer );

for ( let i = 0; i < depth; i ++ ) {

// assign the correct layers and mip maps to the frame buffers
					if ( isSrc3D ) {

_gl.framebufferTextureLayer( _gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, srcTextureProperties.__webglTexture, srcLevel, minZ + i );

} else {

_gl.framebufferTexture2D( _gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, srcTextureProperties.__webglTexture, srcLevel );

}

if ( isDst3D ) {

_gl.framebufferTextureLayer( _gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, dstTextureProperties.__webglTexture, dstLevel, dstZ + i );

} else {

_gl.framebufferTexture2D( _gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, dstTextureProperties.__webglTexture, dstLevel );

}

// copy the data using the fastest function that can achieve the copy
					if ( srcLevel !== 0 ) {

_gl.blitFramebuffer( minX, minY, width, height, dstX, dstY, width, height, _gl.COLOR_BUFFER_BIT, _gl.NEAREST );

} else if ( isDst3D ) {

_gl.copyTexSubImage3D( glTarget, dstLevel, dstX, dstY, dstZ + i, minX, minY, width, height );

} else {

_gl.copyTexSubImage2D( glTarget, dstLevel, dstX, dstY, minX, minY, width, height );

}

// unbind read, draw buffers
				state.bindFramebuffer( _gl.READ_FRAMEBUFFER, null );
				state.bindFramebuffer( _gl.DRAW_FRAMEBUFFER, null );

} else {

if ( isDst3D ) {

// copy data into the 3d texture
					if ( srcTexture.isDataTexture || srcTexture.isData3DTexture ) {

_gl.texSubImage3D( glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth, glFormat, glType, image.data );

} else if ( dstTexture.isCompressedArrayTexture ) {

_gl.compressedTexSubImage3D( glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth, glFormat, image.data );

} else {

_gl.texSubImage3D( glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth, glFormat, glType, image );

}

} else {

// copy data into the 2d texture
					if ( srcTexture.isDataTexture ) {

_gl.texSubImage2D( _gl.TEXTURE_2D, dstLevel, dstX, dstY, width, height, glFormat, glType, image.data );

} else if ( srcTexture.isCompressedTexture ) {

_gl.compressedTexSubImage2D( _gl.TEXTURE_2D, dstLevel, dstX, dstY, image.width, image.height, glFormat, image.data );

} else {

_gl.texSubImage2D( _gl.TEXTURE_2D, dstLevel, dstX, dstY, width, height, glFormat, glType, image );

}

// reset values
			_gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, currentUnpackRowLen );
			_gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, currentUnpackImageHeight );
			_gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, currentUnpackSkipPixels );
			_gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, currentUnpackSkipRows );
			_gl.pixelStorei( _gl.UNPACK_SKIP_IMAGES, currentUnpackSkipImages );

// Generate mipmaps only when copying level 0
			if ( dstLevel === 0 && dstTexture.generateMipmaps ) {

_gl.generateMipmap( glTarget );

}

state.unbindTexture();

};

this.copyTextureToTexture3D = function ( srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0 ) {

// support previous signature with source box first
			if ( srcTexture.isTexture !== true ) {

// @deprecated, r165
				warnOnce( 'WebGLRenderer: copyTextureToTexture3D function signature has changed.' );

srcRegion = arguments[ 0 ] || null;
				dstPosition = arguments[ 1 ] || null;
				srcTexture = arguments[ 2 ];
				dstTexture = arguments[ 3 ];
				level = arguments[ 4 ] || 0;

}

// @deprecated, r170
			warnOnce( 'WebGLRenderer: copyTextureToTexture3D function has been deprecated. Use "copyTextureToTexture" instead.' );

return this.copyTextureToTexture( srcTexture, dstTexture, srcRegion, dstPosition, level );

};

this.initRenderTarget = function ( target ) {

if ( properties.get( target ).__webglFramebuffer === undefined ) {

textures.setupRenderTarget( target );

}

};

this.initTexture = function ( texture ) {

if ( texture.isCubeTexture ) {

textures.setTextureCube( texture, 0 );

} else if ( texture.isData3DTexture ) {

textures.setTexture3D( texture, 0 );

} else if ( texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {

textures.setTexture2DArray( texture, 0 );

} else {

textures.setTexture2D( texture, 0 );

}

state.unbindTexture();

};

this.resetState = function () {

_currentActiveCubeFace = 0;
			_currentActiveMipmapLevel = 0;
			_currentRenderTarget = null;

state.reset();
			bindingStates.reset();

};

if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) );

}

get coordinateSystem() {

return WebGLCoordinateSystem;

}

get outputColorSpace() {

return this._outputColorSpace;

}

set outputColorSpace( colorSpace ) {

this._outputColorSpace = colorSpace;

const gl = this.getContext();
		gl.drawingBufferColorspace = ColorManagement._getDrawingBufferColorSpace( colorSpace );
		gl.unpackColorSpace = ColorManagement._getUnpackColorSpace();

}

export { WebGLRenderer };

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Name	Size	Perms	Modified	Actions
common DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
shaders DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
webgl DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
webgl-fallback DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
webgpu DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
webxr DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
WebGL3DRenderTarget.js	493 B	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
WebGLArrayRenderTarget.js	511 B	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
WebGLCubeRenderTarget.js	3.99 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
WebGLRenderer.js	78.26 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
WebGLRenderTarget.js	269 B	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive