//This file is automatically rebuilt by the Cesium build process.
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export default " /**\n\
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* Decodes a unit-length vector in 'oct' encoding to a normalized 3-component Cartesian vector.\n\
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* The 'oct' encoding is described in \"A Survey of Efficient Representations of Independent Unit Vectors\",\n\
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* Cigolle et al 2014: http://jcgt.org/published/0003/02/01/\n\
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*\n\
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* @name czm_octDecode\n\
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* @param {vec2} encoded The oct-encoded, unit-length vector\n\
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* @param {float} range The maximum value of the SNORM range. The encoded vector is stored in log2(rangeMax+1) bits.\n\
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* @returns {vec3} The decoded and normalized vector\n\
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*/\n\
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vec3 czm_octDecode(vec2 encoded, float range)\n\
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{\n\
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if (encoded.x == 0.0 && encoded.y == 0.0) {\n\
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return vec3(0.0, 0.0, 0.0);\n\
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}\n\
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\n\
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encoded = encoded / range * 2.0 - 1.0;\n\
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vec3 v = vec3(encoded.x, encoded.y, 1.0 - abs(encoded.x) - abs(encoded.y));\n\
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if (v.z < 0.0)\n\
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{\n\
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v.xy = (1.0 - abs(v.yx)) * czm_signNotZero(v.xy);\n\
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}\n\
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\n\
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return normalize(v);\n\
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}\n\
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\n\
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/**\n\
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* Decodes a unit-length vector in 'oct' encoding to a normalized 3-component Cartesian vector.\n\
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* The 'oct' encoding is described in \"A Survey of Efficient Representations of Independent Unit Vectors\",\n\
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* Cigolle et al 2014: http://jcgt.org/published/0003/02/01/\n\
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*\n\
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* @name czm_octDecode\n\
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* @param {vec2} encoded The oct-encoded, unit-length vector\n\
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* @returns {vec3} The decoded and normalized vector\n\
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*/\n\
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vec3 czm_octDecode(vec2 encoded)\n\
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{\n\
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return czm_octDecode(encoded, 255.0);\n\
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}\n\
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\n\
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/**\n\
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* Decodes a unit-length vector in 'oct' encoding packed into a floating-point number to a normalized 3-component Cartesian vector.\n\
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* The 'oct' encoding is described in \"A Survey of Efficient Representations of Independent Unit Vectors\",\n\
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* Cigolle et al 2014: http://jcgt.org/published/0003/02/01/\n\
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*\n\
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* @name czm_octDecode\n\
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* @param {float} encoded The oct-encoded, unit-length vector\n\
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* @returns {vec3} The decoded and normalized vector\n\
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*/\n\
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vec3 czm_octDecode(float encoded)\n\
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{\n\
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float temp = encoded / 256.0;\n\
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float x = floor(temp);\n\
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float y = (temp - x) * 256.0;\n\
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return czm_octDecode(vec2(x, y));\n\
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}\n\
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\n\
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/**\n\
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* Decodes three unit-length vectors in 'oct' encoding packed into two floating-point numbers to normalized 3-component Cartesian vectors.\n\
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* The 'oct' encoding is described in \"A Survey of Efficient Representations of Independent Unit Vectors\",\n\
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* Cigolle et al 2014: http://jcgt.org/published/0003/02/01/\n\
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*\n\
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* @name czm_octDecode\n\
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* @param {vec2} encoded The packed oct-encoded, unit-length vectors.\n\
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* @param {vec3} vector1 One decoded and normalized vector.\n\
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* @param {vec3} vector2 One decoded and normalized vector.\n\
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* @param {vec3} vector3 One decoded and normalized vector.\n\
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*/\n\
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void czm_octDecode(vec2 encoded, out vec3 vector1, out vec3 vector2, out vec3 vector3)\n\
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{\n\
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float temp = encoded.x / 65536.0;\n\
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float x = floor(temp);\n\
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float encodedFloat1 = (temp - x) * 65536.0;\n\
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\n\
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temp = encoded.y / 65536.0;\n\
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float y = floor(temp);\n\
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float encodedFloat2 = (temp - y) * 65536.0;\n\
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\n\
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vector1 = czm_octDecode(encodedFloat1);\n\
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vector2 = czm_octDecode(encodedFloat2);\n\
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vector3 = czm_octDecode(vec2(x, y));\n\
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}\n\
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\n\
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";
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