Pixel-Composer/shaders/sh_lum2alpha/sh_lum2alpha.fsh

17 lines
325 B
Plaintext
Raw Normal View History

2022-12-27 04:00:50 +01:00
//
// Simple passthrough fragment shader
//
varying vec2 v_vTexcoord;
varying vec4 v_vColour;
uniform vec4 color;
void main() {
vec4 samp = texture2D( gm_BaseTexture, v_vTexcoord );
float bright = dot(samp.rgb, vec3(0.2126, 0.7152, 0.0722));
2023-03-05 07:16:44 +01:00
vec4 col = v_vColour * color;
col.a *= bright;
2022-12-27 04:00:50 +01:00
2023-03-05 07:16:44 +01:00
gl_FragColor = col;
2022-12-27 04:00:50 +01:00
}