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three

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JavaScript 3D library

threejs.org

mrdoob/three.js

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export default /* glsl */` vec3 transformedNormal = normalMatrix * objectNormal; #ifdef FLIP_SIDED transformedNormal = - transformedNormal; #endif #ifdef USE_TANGENT vec3 transformedTangent = normalMatrix * objectTangent; #ifdef FLIP_SIDED transformedTangent = - transformedTangent; #endif #endif `;