Backups/Bliss-Shader
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faster floodfill sampling in rgb not hsv

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NULL511
2024-06-18 22:23:29 -04:00
parent ccf5ebd5d4
commit 41b2f443d9
3 changed files with 108 additions and 135 deletions
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48
shaders/lib/lpv_render.glsl
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@ -1,51 +1,23 @@
// LPV falloff curve
const float LpvBlockPower = 4.0;
// LPV block brightness scale
const float LpvBlockBrightness = 2.0;
float lpvCurve(float values){
// return pow(values, LpvBlockPower) ;
return pow(1.0-sqrt(1.0-values),2.0);
// return values;
}
vec4 SampleLpvNearest(const in ivec3 lpvPos) {
vec4 lpvSample = (frameCounter % 2) == 0
? texelFetch(texLpv1, lpvPos, 0)
: texelFetch(texLpv2, lpvPos, 0);
lpvSample.b = lpvCurve(lpvSample.b) * LpvBlockSkyRange.x;
lpvSample.rgb = HsvToRgb(lpvSample.rgb);
return lpvSample;
float lpvCurve(float values) {
return pow(1.0 - sqrt(1.0-values), 2.0);
}
vec4 SampleLpvLinear(const in vec3 lpvPos) {
vec3 pos = lpvPos - 0.5;
ivec3 lpvCoord = ivec3(floor(pos));
vec3 lpvF = fract(pos);
vec3 texcoord = lpvPos / LpvSize3;
vec4 sample_x1y1z1 = SampleLpvNearest(lpvCoord + ivec3(0, 0, 0));
vec4 sample_x2y1z1 = SampleLpvNearest(lpvCoord + ivec3(1, 0, 0));
vec4 sample_x1y2z1 = SampleLpvNearest(lpvCoord + ivec3(0, 1, 0));
vec4 sample_x2y2z1 = SampleLpvNearest(lpvCoord + ivec3(1, 1, 0));
vec4 lpvSample = (frameCounter % 2) == 0
? textureLod(texLpv1, texcoord, 0)
: textureLod(texLpv2, texcoord, 0);
vec4 sample_x1y1z2 = SampleLpvNearest(lpvCoord + ivec3(0, 0, 1));
vec4 sample_x2y1z2 = SampleLpvNearest(lpvCoord + ivec3(1, 0, 1));
vec4 sample_x1y2z2 = SampleLpvNearest(lpvCoord + ivec3(0, 1, 1));
vec4 sample_x2y2z2 = SampleLpvNearest(lpvCoord + ivec3(1, 1, 1));
vec3 hsv = RgbToHsv(lpvSample.rgb);
hsv.z = lpvCurve(hsv.b) * LpvBlockSkyRange.x;
lpvSample.rgb = HsvToRgb(hsv);
vec4 sample_y1z1 = mix(sample_x1y1z1, sample_x2y1z1, lpvF.x);
vec4 sample_y2z1 = mix(sample_x1y2z1, sample_x2y2z1, lpvF.x);
vec4 sample_y1z2 = mix(sample_x1y1z2, sample_x2y1z2, lpvF.x);
vec4 sample_y2z2 = mix(sample_x1y2z2, sample_x2y2z2, lpvF.x);
vec4 sample_z1 = mix(sample_y1z1, sample_y2z1, lpvF.y);
vec4 sample_z2 = mix(sample_y1z2, sample_y2z2, lpvF.y);
return mix(sample_z1, sample_z2, lpvF.z);
return lpvSample;
}
vec3 GetLpvBlockLight(const in vec4 lpvSample) {