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import { ColorManagement } from '../../math/ColorManagement.js';

/**
 * Uniform Utilities
 */

export function cloneUniforms( src ) {

const dst = {};

for ( const u in src ) {

dst[ u ] = {};

for ( const p in src[ u ] ) {

const property = src[ u ][ p ];

if ( property && ( property.isColor ||
				property.isMatrix3 || property.isMatrix4 ||
				property.isVector2 || property.isVector3 || property.isVector4 ||
				property.isTexture || property.isQuaternion ) ) {

if ( property.isRenderTargetTexture ) {

console.warn( 'UniformsUtils: Textures of render targets cannot be cloned via cloneUniforms() or mergeUniforms().' );
					dst[ u ][ p ] = null;

} else {

dst[ u ][ p ] = property.clone();

}

} else if ( Array.isArray( property ) ) {

dst[ u ][ p ] = property.slice();

} else {

dst[ u ][ p ] = property;

}

return dst;

}

export function mergeUniforms( uniforms ) {

const merged = {};

for ( let u = 0; u < uniforms.length; u ++ ) {

const tmp = cloneUniforms( uniforms[ u ] );

for ( const p in tmp ) {

merged[ p ] = tmp[ p ];

}

return merged;

}

export function cloneUniformsGroups( src ) {

const dst = [];

for ( let u = 0; u < src.length; u ++ ) {

dst.push( src[ u ].clone() );

}

return dst;

}

export function getUnlitUniformColorSpace( renderer ) {

const currentRenderTarget = renderer.getRenderTarget();

if ( currentRenderTarget === null ) {

// https://github.com/mrdoob/three.js/pull/23937#issuecomment-1111067398
		return renderer.outputColorSpace;

}

// https://github.com/mrdoob/three.js/issues/27868
	if ( currentRenderTarget.isXRRenderTarget === true ) {

return currentRenderTarget.texture.colorSpace;

}

return ColorManagement.workingColorSpace;

}

// Legacy

const UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };

export { UniformsUtils };

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Name	Size	Perms	Modified	Actions
ShaderChunk DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
ShaderLib DIR	-	drwxr-xr-x	2025-03-28 11:04:39	Edit Download recursive recursive
ShaderChunk.js	15.16 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
ShaderLib.js	8.21 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
UniformsLib.js	4.55 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
UniformsUtils.js	1.85 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive

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