mirror of
https://github.com/Anuken/Mindustry.git
synced 2025-01-31 01:44:22 +07:00
48 lines
1.4 KiB
GLSL
48 lines
1.4 KiB
GLSL
|
|
uniform lowp sampler2D u_texture;
|
|
varying vec2 v_texCoords0;
|
|
varying vec2 v_texCoords1;
|
|
varying vec2 v_texCoords2;
|
|
varying vec2 v_texCoords3;
|
|
varying vec2 v_texCoords4;
|
|
const float center = 0.2270270270;
|
|
const float close = 0.3162162162;
|
|
const float far = 0.0702702703;
|
|
|
|
void main(){
|
|
gl_FragColor = far * texture2D(u_texture, v_texCoords0)
|
|
+ close * texture2D(u_texture, v_texCoords1)
|
|
+ center * texture2D(u_texture, v_texCoords2)
|
|
+ close * texture2D(u_texture, v_texCoords3)
|
|
+ far * texture2D(u_texture, v_texCoords4);
|
|
|
|
|
|
//TODO this is broken.
|
|
/*
|
|
|
|
vec4
|
|
v1 = texture2D(u_texture, v_texCoords0),
|
|
v2 = texture2D(u_texture, v_texCoords1),
|
|
v3 = texture2D(u_texture, v_texCoords2),
|
|
v4 = texture2D(u_texture, v_texCoords3),
|
|
v5 = texture2D(u_texture, v_texCoords4);
|
|
|
|
float
|
|
a1 = v1.a * far,
|
|
a2 = v2.a * close,
|
|
a3 = v3.a * center,
|
|
a4 = v4.a * close,
|
|
a5 = v5.a * far;
|
|
|
|
//far close center close far
|
|
|
|
//TODO figure this out
|
|
//RGB values should be weighted by their respective alpha values.
|
|
gl_FragColor = vec4(
|
|
(v1.rgb * a1 + v2.rgb * a2 + v3.rgb * a3 + v4.rgb * a4 + v5.rgb * a5) /
|
|
max(a1 + a2 + a3 + a4 + a5, 0.0001), //RGB must be weighed by the sum of all alpha processed. if a pixel contributes less weight, the multiplication is higher
|
|
a1 + a2 + a3 + a4 + a5); //alpha is just the weighed sum
|
|
|
|
*/
|
|
}
|