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Fixes GLES2 crashing when compiling the drug shader (#22899)

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fixes drug shader not compiling in gles2 and also applies DRY
This commit is contained in:
deathride58
2023-12-23 13:36:56 -05:00
committed by GitHub
parent 9103061ac0
commit 9870c7f9eb
1 changed files with 6 additions and 2 deletions
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8
Resources/Textures/Shaders/rainbow.swsl
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@@ -54,6 +54,10 @@ highp float mixNoise(highp vec2 point, highp float phase) {
return mix(a,b,0.5);
}
highp float genGradient(highp vec2 center, highp vec2 coord, highp float radius, highp float dist, highp float power) {
return pow(min(max((length(center - coord) / radius) - dist, 0.0), 1.0), power);
}
void fragment() {
highp vec2 coord = FRAGCOORD.xy * SCREEN_PIXEL_SIZE.xy;
highp vec2 aspect = vec2(1.0/SCREEN_PIXEL_SIZE.x, 1.0/SCREEN_PIXEL_SIZE.y);
@@ -61,13 +65,13 @@ void fragment() {
// warp the screen.
highp vec2 offset = vec2(mixNoise(coord, 0.), mixNoise(coord, 5.));
highp float centergradient = pow(clamp((length(center - FRAGCOORD.xy) / CenterRadius) - CenterMinDist, 0.0, 1.0), CenterPow);
highp float centergradient = genGradient(center, FRAGCOORD.xy, CenterRadius, CenterMinDist, CenterPow);
COLOR = zTextureSpec(SCREEN_TEXTURE, coord + effectScale * (DistortionScale * centergradient) * offset);
// apply rainbow effect.
highp float hue = 1. + mixNoise(coord, 10.);
highp vec3 color = hsv2rgb_smooth(vec3(hue,1.0,1.0));
highp float centercolor = pow(clamp((length(center - FRAGCOORD.xy) / CenterColorRadius) - CenterColorMinDist, 0.0, 1.0), CenterColorPow);
highp float centercolor = genGradient(center, FRAGCOORD.xy, CenterColorRadius, CenterColorMinDist, CenterColorPow);
highp float coloration = pow((COLOR.x + COLOR.y + COLOR.z) * BaseColorMult, BaseColorPow) * centercolor;
COLOR.xyz = mix(COLOR.xyz, color, MaxColorMix * effectScale * effectScale * coloration);
}