28 lines
1.1 KiB
JavaScript
28 lines
1.1 KiB
JavaScript
//This file is automatically rebuilt by the Cesium build process.
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export default "/**\n\
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* Creates a matrix that transforms vectors from tangent space to eye space.\n\
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*\n\
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* @name czm_tangentToEyeSpaceMatrix\n\
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* @glslFunction\n\
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*\n\
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* @param {vec3} normalEC The normal vector in eye coordinates.\n\
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* @param {vec3} tangentEC The tangent vector in eye coordinates.\n\
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* @param {vec3} bitangentEC The bitangent vector in eye coordinates.\n\
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*\n\
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* @returns {mat3} The matrix that transforms from tangent space to eye space.\n\
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*\n\
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* @example\n\
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* mat3 tangentToEye = czm_tangentToEyeSpaceMatrix(normalEC, tangentEC, bitangentEC);\n\
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* vec3 normal = tangentToEye * texture(normalMap, st).xyz;\n\
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*/\n\
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mat3 czm_tangentToEyeSpaceMatrix(vec3 normalEC, vec3 tangentEC, vec3 bitangentEC)\n\
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{\n\
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vec3 normal = normalize(normalEC);\n\
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vec3 tangent = normalize(tangentEC);\n\
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vec3 bitangent = normalize(bitangentEC);\n\
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return mat3(tangent.x , tangent.y , tangent.z,\n\
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bitangent.x, bitangent.y, bitangent.z,\n\
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normal.x , normal.y , normal.z);\n\
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}\n\
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";
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