three/src/renderers/shaders/ShaderChunk/morphtarget_pars_vertex.glsl.js

JavaScript 3D library

export default /* glsl */`
#ifdef USE_MORPHTARGETS

	#ifndef USE_INSTANCING_MORPH

		uniform float morphTargetBaseInfluence;
		uniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];

	#endif

	uniform sampler2DArray morphTargetsTexture;
	uniform ivec2 morphTargetsTextureSize;

	vec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {

		int texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;
		int y = texelIndex / morphTargetsTextureSize.x;
		int x = texelIndex - y * morphTargetsTextureSize.x;

		ivec3 morphUV = ivec3( x, y, morphTargetIndex );
		return texelFetch( morphTargetsTexture, morphUV, 0 );

	}

#endif
`;