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Roll dof

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This commit is contained in:
Lubos Lenco 2017-07-31 14:30:56 +02:00
parent a2189ac7a7
commit 64f924bd27
1 changed files with 15 additions and 161 deletions
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176
Shaders/std/dof.glsl
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@ -8,10 +8,10 @@
// const float compoDOFLength = 160.0; // Focal length in mm 18-200
// const float compoDOFFstop = 128.0; // F-stop value
const int samples = 3; // Samples on the first ring
const int rings = 3; // Ring count
const int samples = 6; // Samples on the first ring
const int rings = 6; // Ring count
const vec2 focus = vec2(0.5, 0.5);
const float coc = 0.03; // Circle of confusion size in mm (35mm film = 0.03mm)
const float coc = 0.11; // Circle of confusion size in mm (35mm film = 0.03mm)
const float maxblur = 1.0;
const float threshold = 0.5; // Highlight threshold
const float gain = 2.0; // Highlight gain
@ -57,166 +57,20 @@ vec3 dof(const vec2 texCoord, const float gdepth, const sampler2D tex, const sam
float s = 1.0;
int ringsamples;
// for (int i = 1; i <= rings; ++i) {
// ringsamples = i * samples;
// for (int j = 0 ; j < ringsamples; ++j) {
// float step = PI2 / float(ringsamples);
// float pw = (cos(float(j) * step) * float(i));
// float ph = (sin(float(j) * step) * float(i));
// float p = 1.0;
// if (pentagon) {
// p = penta(vec2(pw, ph));
// }
// col += color(texCoord + vec2(pw * w, ph * h), blur) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
// s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
// }
// }
// Unroll..
int i = 1; // i <= rings
ringsamples = i * samples;
int j = 0; // j < ringsamples
float step = PI2 / float(ringsamples);
float pw = cos(float(j) * step) * float(i);
float ph = sin(float(j) * step) * float(i);
float p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 1; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 2; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
//------
i = 2; // i <= rings
ringsamples = i * samples;
j = 0; // j < ringsamples
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 1; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 2; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 3; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 4; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 5; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
//------
i = 3; // i <= rings
ringsamples = i * samples;
j = 0; // j < ringsamples
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 1; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 2; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 3; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 4; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 5; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 6; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 7; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
j = 8; //////
step = PI2 / float(ringsamples);
pw = cos(float(j) * step) * float(i);
ph = sin(float(j) * step) * float(i);
p = 1.0;
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
//------
for (int i = 1; i <= rings; ++i) {
ringsamples = i * samples;
for (int j = 0 ; j < ringsamples; ++j) {
float step = PI2 / float(ringsamples);
float pw = (cos(float(j) * step) * float(i));
float ph = (sin(float(j) * step) * float(i));
float p = 1.0;
// if (pentagon) p = penta(vec2(pw, ph));
col += color(texCoord + vec2(pw * w, ph * h), blur, tex, texStep) * mix(1.0, (float(i)) / (float(rings)), bias) * p;
s += 1.0 * mix(1.0, (float(i)) / (float(rings)), bias) * p;
}
}
col /= s;
}
return col;
}