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13 lines
382 B
PHP
13 lines
382 B
PHP
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// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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vec4 packDepthToRGBA(float depth) {
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vec4 ret = vec4(1.0, 255.0, 65025.0, 160581375.0) * depth;
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ret = fract(ret);
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ret -= ret.yzww * vec4(1.0 / 255.0, 1.0 / 255.0, 1.0 / 255.0, 0.0);
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return ret;
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}
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float unpackRGBAToDepth(vec4 color) {
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return dot(color, vec4(1.0, 1.0 / 255.0, 1.0 / 65025.0, 1.0 / 160581375.0));
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}
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