mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-21 12:52:43 +02:00
30 lines
582 B
GLSL
30 lines
582 B
GLSL
//
|
|
// Simple passthrough fragment shader
|
|
//
|
|
//varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform vec3 color;
|
|
uniform float intensity;
|
|
uniform float band;
|
|
uniform float atten;
|
|
|
|
void main() {
|
|
float bright = (v_vColour.r + v_vColour.b + v_vColour.g) / 3.;
|
|
bright = clamp(bright, 0., 1.);
|
|
|
|
if(atten == 0.)
|
|
bright = bright * bright;
|
|
else if(atten == 1.)
|
|
bright = 1. - (bright - 1.) * (bright - 1.);
|
|
else if(atten == 2.)
|
|
bright = bright;
|
|
|
|
bright *= intensity;
|
|
|
|
if(band > 0.)
|
|
bright = ceil(bright * band) / band;
|
|
|
|
gl_FragColor = vec4(color, 1.) * bright;
|
|
}
|