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9 lines
210 B
PHP
9 lines
210 B
PHP
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// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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vec3 unpackNormal(vec4 nmap) {
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return nmap.xyz * 2.0 - 1.0;
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}
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vec3 unpackRGBE(vec4 rgbe) {
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return rgbe.rgb * pow(2.0, rgbe.a * 255.0 - 128.0);
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}
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