mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-12-28 07:56:17 +01:00
227 lines
6.6 KiB
GLSL
227 lines
6.6 KiB
GLSL
varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform float seed;
|
|
|
|
uniform int bmBright;
|
|
uniform int bmRGB;
|
|
uniform int bmHSV;
|
|
|
|
uniform vec2 brightness;
|
|
uniform int brightnessUseSurf;
|
|
uniform sampler2D brightnessSurf;
|
|
|
|
uniform vec2 red;
|
|
uniform int redUseSurf;
|
|
uniform sampler2D redSurf;
|
|
|
|
uniform vec2 green;
|
|
uniform int greenUseSurf;
|
|
uniform sampler2D greenSurf;
|
|
|
|
uniform vec2 blue;
|
|
uniform int blueUseSurf;
|
|
uniform sampler2D blueSurf;
|
|
|
|
uniform vec2 hue;
|
|
uniform int hueUseSurf;
|
|
uniform sampler2D hueSurf;
|
|
|
|
uniform vec2 sat;
|
|
uniform int satUseSurf;
|
|
uniform sampler2D satSurf;
|
|
|
|
uniform vec2 val;
|
|
uniform int valUseSurf;
|
|
uniform sampler2D valSurf;
|
|
|
|
vec3 channel_mix(vec3 a, vec3 b, vec3 w) { return vec3(mix(a.r, b.r, w.r), mix(a.g, b.g, w.g), mix(a.b, b.b, w.b)); }
|
|
vec3 screen( vec3 a, vec3 b, float w) { return mix(a, vec3(1.0) - (vec3(1.0) - a) * (vec3(1.0) - b), w); }
|
|
vec3 soft_light( vec3 a, vec3 b, float w) { return mix(a, pow(a, pow(vec3(2.0), 2.0 * (vec3(0.5) - b))), w); }
|
|
|
|
float screen( float a, float b, float w) { return mix(a, 1. - (1. - a) * (1. - b), w); }
|
|
|
|
vec3 overlay(vec3 a, vec3 b, float w) {
|
|
return mix(a, channel_mix(
|
|
2.0 * a * b,
|
|
vec3(1.0) - 2.0 * (vec3(1.0) - a) * (vec3(1.0) - b),
|
|
step(vec3(0.5), a)
|
|
), w);
|
|
}
|
|
|
|
// float random (in vec2 st) { return fract(sin(dot(st.xy + vec2(seed / 1000., 0.), vec2(12.9898, 78.233))) * 43758.5453123); }
|
|
float gaussian( float z, float u, float o) { return (1.0 / (o * sqrt(2.0 * 3.1415))) * exp(-(((z - u) * (z - u)) / (2.0 * (o * o)))); }
|
|
float grandom (in vec2 st) {
|
|
float n = fract(sin(dot(st, vec2(12.9898, 78.233))) * 43758.5453 + seed);
|
|
float r = gaussian(n, 0., .5 * .5);
|
|
|
|
return r;
|
|
}
|
|
|
|
#region =========================================== COLORS SPACES ===========================================
|
|
vec3 rgb2hsv(vec3 c) {
|
|
vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
|
|
vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
|
|
vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));
|
|
|
|
float d = q.x - min(q.w, q.y);
|
|
float e = 0.0000000001;
|
|
return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
|
|
}
|
|
|
|
vec3 hsv2rgb(vec3 c) {
|
|
vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
|
|
vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
|
|
return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
|
|
}
|
|
|
|
float hue2rgb( in float m1, in float m2, in float hue) {
|
|
if (hue < 0.0)
|
|
hue += 1.0;
|
|
else if (hue > 1.0)
|
|
hue -= 1.0;
|
|
|
|
if ((6.0 * hue) < 1.0)
|
|
return m1 + (m2 - m1) * hue * 6.0;
|
|
else if ((2.0 * hue) < 1.0)
|
|
return m2;
|
|
else if ((3.0 * hue) < 2.0)
|
|
return m1 + (m2 - m1) * ((2.0 / 3.0) - hue) * 6.0;
|
|
else
|
|
return m1;
|
|
}
|
|
|
|
vec3 hsl2rgb( in vec3 hsl ) {
|
|
float r, g, b;
|
|
if(hsl.y == 0.) {
|
|
r = hsl.z;
|
|
g = hsl.z;
|
|
b = hsl.z;
|
|
} else {
|
|
float m1, m2;
|
|
if(hsl.z <= 0.5)
|
|
m2 = hsl.z * (1. + hsl.y);
|
|
else
|
|
m2 = hsl.z + hsl.y - hsl.z * hsl.y;
|
|
m1 = 2. * hsl.z - m2;
|
|
|
|
r = hue2rgb(m1, m2, hsl.x + 1. / 3.);
|
|
g = hue2rgb(m1, m2, hsl.x);
|
|
b = hue2rgb(m1, m2, hsl.x - 1. / 3.);
|
|
}
|
|
|
|
return vec3( r, g, b );
|
|
}
|
|
|
|
vec3 rgb2hsl( in vec3 c ) {
|
|
float h = 0.0;
|
|
float s = 0.0;
|
|
float l = 0.0;
|
|
float r = c.r;
|
|
float g = c.g;
|
|
float b = c.b;
|
|
float cMin = min( r, min( g, b ) );
|
|
float cMax = max( r, max( g, b ) );
|
|
|
|
l = ( cMax + cMin ) / 2.0;
|
|
if ( cMax > cMin ) {
|
|
float cDelta = cMax - cMin;
|
|
|
|
s = l < .5 ? cDelta / ( cMax + cMin ) : cDelta / ( 2.0 - ( cMax + cMin ) );
|
|
|
|
if ( r == cMax )
|
|
h = ( g - b ) / cDelta;
|
|
else if ( g == cMax )
|
|
h = 2.0 + ( b - r ) / cDelta;
|
|
else
|
|
h = 4.0 + ( r - g ) / cDelta;
|
|
|
|
if ( h < 0.0)
|
|
h += 6.0;
|
|
h = h / 6.0;
|
|
}
|
|
return vec3( h, s, l );
|
|
}
|
|
#endregion =========================================== COLORS SPACES ===========================================
|
|
|
|
void main() {
|
|
vec4 c = texture2D( gm_BaseTexture, v_vTexcoord );
|
|
|
|
float bri = brightness.x; if(brightnessUseSurf == 1) {
|
|
vec4 _vMap = texture2D( brightnessSurf, v_vTexcoord );
|
|
bri = mix(brightness.x, brightness.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} bri *= bri;
|
|
|
|
float r = red.x; if(redUseSurf == 1) {
|
|
vec4 _vMap = texture2D( redSurf, v_vTexcoord );
|
|
r = mix(red.x, red.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} r *= r;
|
|
|
|
float g = green.x; if(greenUseSurf == 1) {
|
|
vec4 _vMap = texture2D( greenSurf, v_vTexcoord );
|
|
g = mix(green.x, green.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} g *= g;
|
|
|
|
float b = blue.x; if(blueUseSurf == 1) {
|
|
vec4 _vMap = texture2D( blueSurf, v_vTexcoord );
|
|
b = mix(blue.x, blue.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} b *= b;
|
|
|
|
float h = hue.x; if(hueUseSurf == 1) {
|
|
vec4 _vMap = texture2D( hueSurf, v_vTexcoord );
|
|
h = mix(hue.x, hue.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} h *= h;
|
|
|
|
float s = sat.x; if(satUseSurf == 1) {
|
|
vec4 _vMap = texture2D( satSurf, v_vTexcoord );
|
|
s = mix(sat.x, sat.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} s *= s;
|
|
|
|
float v = val.x; if(valUseSurf == 1) {
|
|
vec4 _vMap = texture2D( valSurf, v_vTexcoord );
|
|
v = mix(val.x, val.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
} v *= v;
|
|
|
|
float nBri = grandom(v_vTexcoord + vec2(0.156, 0.6169));
|
|
vec3 grain = vec3(nBri);
|
|
if(bmBright == 0) c.rgb += nBri * bri;
|
|
else if(bmBright == 1) c.rgb *= 1. + nBri * bri;
|
|
else if(bmBright == 2) c.rgb = screen( c.rgb, grain, bri);
|
|
else if(bmBright == 3) c.rgb = overlay(c.rgb, grain, bri);
|
|
|
|
float nr = grandom(v_vTexcoord + vec2(0.985, 0.3642));
|
|
if(bmRGB == 0) c.r += nr * r;
|
|
else if(bmRGB == 1) c.r *= 1. + nr * r;
|
|
else if(bmRGB == 2) c.r = screen( c.r, nr, r);
|
|
|
|
float ng = grandom(v_vTexcoord + vec2(0.653, 0.4954));
|
|
if(bmRGB == 0) c.g += ng * g;
|
|
else if(bmRGB == 1) c.g *= 1. + ng * g;
|
|
else if(bmRGB == 2) c.g = screen( c.g, ng, g);
|
|
|
|
float nb = grandom(v_vTexcoord + vec2(0.382, 0.2967));
|
|
if(bmRGB == 0) c.b += nb * b;
|
|
else if(bmRGB == 1) c.b *= 1. + nb * b;
|
|
else if(bmRGB == 2) c.b = screen( c.b, nb, b);
|
|
|
|
vec3 hsv = rgb2hsv(c.rgb);
|
|
|
|
float nh = grandom(v_vTexcoord + vec2(0.685, 0.5672));
|
|
if(bmHSV == 0) hsv.r += nh * r;
|
|
else if(bmHSV == 1) hsv.r *= 1. + nh * r;
|
|
else if(bmHSV == 2) hsv.r = screen( hsv.r, nh, r);
|
|
|
|
float ns = grandom(v_vTexcoord + vec2(0.134, 0.8632));
|
|
if(bmHSV == 0) hsv.g += ns * g;
|
|
else if(bmHSV == 1) hsv.g *= 1. + ns * g;
|
|
else if(bmHSV == 2) hsv.g = screen( hsv.g, ns, g);
|
|
|
|
float nv = grandom(v_vTexcoord + vec2(0.268, 0.1264));
|
|
if(bmHSV == 0) hsv.b += nv * b;
|
|
else if(bmHSV == 1) hsv.b *= 1. + nv * b;
|
|
else if(bmHSV == 2) hsv.b = screen( hsv.b, nv, b);
|
|
|
|
c.rgb = hsv2rgb(hsv);
|
|
|
|
gl_FragColor = c;
|
|
}
|