veloren/assets/voxygen/shaders/antialias/msaa-x4.glsl

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560 B
GLSL

vec4 aa_apply(texture2D tex, sampler smplr, vec2 fragCoord, vec2 resolution) {
ivec2 texel_coord = ivec2(fragCoord.x, fragCoord.y);
vec4 sample1 = texelFetch(sampler2DMS(tex, smplr), texel_coord, 0);
vec4 sample2 = texelFetch(sampler2DMS(tex, smplr), texel_coord, 1);
vec4 sample3 = texelFetch(sampler2DMS(tex, smplr), texel_coord, 2);
vec4 sample4 = texelFetch(sampler2DMS(tex, smplr), texel_coord, 3);
// Average Samples
vec4 msaa_color = (sample1 + sample2 + sample3 + sample4) / 4.0;
return msaa_color;
}