mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-21 21:01:20 +02:00
20 lines
583 B
GLSL
20 lines
583 B
GLSL
//
|
|
// Simple passthrough fragment shader
|
|
//
|
|
varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform float dimension;
|
|
|
|
void main() {
|
|
vec2 pos = v_vTexcoord * dimension;
|
|
vec2 st = floor(pos / 2.) * 2.;
|
|
|
|
vec4 c0 = texture2D( gm_BaseTexture, (st + vec2(0., 0.)) / dimension );
|
|
vec4 c1 = texture2D( gm_BaseTexture, (st + vec2(1., 0.)) / dimension );
|
|
vec4 c2 = texture2D( gm_BaseTexture, (st + vec2(0., 1.)) / dimension );
|
|
vec4 c3 = texture2D( gm_BaseTexture, (st + vec2(1., 1.)) / dimension );
|
|
|
|
gl_FragColor = (c0 + c1 + c2 + c3) / (c0.a + c1.a + c2.a + c3.a);
|
|
}
|