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Cut the number of pixels that call length() in half.

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This commit is contained in:
Felix Dick 2022-10-01 02:45:36 +02:00
parent 71733f68ef
commit 6fe103cf06
1 changed files with 4 additions and 4 deletions
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8
src/render/shaders/Textures.hpp
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@ -7,11 +7,11 @@ inline static constexpr auto ROUNDED_SHADER_FUNC = [](const std::string colorVar
// branchless baby! // branchless baby!
highp vec2 pixCoord = vec2(gl_FragCoord); highp vec2 pixCoord = vec2(gl_FragCoord);
pixCoord -= topLeft + fullSize / vec2(2.0); pixCoord -= topLeft + fullSize * 0.5;
pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * vec2(-2.0) + vec2(1.0); pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
pixCoord -= fullSize * vec2(0.5) - vec2(radius); pixCoord -= fullSize * 0.5 - radius;
if (all(greaterThan(pixCoord, vec2(0.0)))) { if (pixCoord.x + pixCoord.y > radius) {
if (ignoreCorners == 1) if (ignoreCorners == 1)
discard; discard;