//This file is automatically rebuilt by the Cesium build process.
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export default "#define SHIFT_RIGHT_8 0.00390625 //1.0 / 256.0\n\
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#define SHIFT_RIGHT_16 0.00001525878 //1.0 / 65536.0\n\
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#define SHIFT_RIGHT_24 5.960464477539063e-8//1.0 / 16777216.0\n\
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\n\
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#define BIAS 38.0\n\
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\n\
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/**\n\
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* Unpacks a vec4 value containing values expressable as uint8 to an arbitrary float.\n\
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*\n\
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* @name czm_unpackFloat\n\
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* @glslFunction\n\
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*\n\
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* @param {vec4} packedFloat The packed float.\n\
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*\n\
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* @returns {float} The floating-point depth in arbitrary range.\n\
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*/\n\
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float czm_unpackFloat(vec4 packedFloat)\n\
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{\n\
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packedFloat *= 255.0;\n\
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float temp = packedFloat.w / 2.0;\n\
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float exponent = floor(temp);\n\
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float sign = (temp - exponent) * 2.0;\n\
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exponent = exponent - float(BIAS);\n\
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sign = sign * 2.0 - 1.0;\n\
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sign = -sign;\n\
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float unpacked = sign * packedFloat.x * float(SHIFT_RIGHT_8);\n\
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unpacked += sign * packedFloat.y * float(SHIFT_RIGHT_16);\n\
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unpacked += sign * packedFloat.z * float(SHIFT_RIGHT_24);\n\
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return unpacked * pow(10.0, exponent);\n\
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}\n\
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";
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