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test dithering solution

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MihailRis 2026-07-14 23:59:09 +03:00
parent 17f3cbce95
commit 413004d731
1 changed files with 22 additions and 1 deletions
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23
res/shaders/entity.glslf
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@ -15,11 +15,32 @@ uniform float u_fogCurve;
uniform bool u_alphaClip;
uniform vec3 u_sunDir;
const float BAYER_MATRIX[64] = float[](
0.0, 32.0, 8.0, 40.0, 2.0, 34.0, 10.0, 42.0,
48.0, 16.0, 56.0, 24.0, 50.0, 18.0, 58.0, 26.0,
12.0, 44.0, 4.0, 36.0, 14.0, 46.0, 6.0, 38.0,
60.0, 28.0, 52.0, 20.0, 62.0, 30.0, 54.0, 22.0,
3.0, 35.0, 11.0, 43.0, 1.0, 33.0, 9.0, 41.0,
51.0, 19.0, 59.0, 27.0, 49.0, 17.0, 57.0, 25.0,
15.0, 47.0, 7.0, 39.0, 13.0, 45.0, 5.0, 37.0,
63.0, 31.0, 55.0, 23.0, 61.0, 29.0, 53.0, 21.0
);
float calc_bayer(vec2 pos){
ivec2 p = ivec2(mod(pos, 8.0));
return BAYER_MATRIX[p.y * 8 + p.x] / 64.0;
}
void main() {
vec4 texColor = texture(u_texture0, a_texCoord);
float alpha = a_color.a * texColor.a;
// anyway it's any alpha-test alternative required
if (alpha < (u_alphaClip ? 0.5f : 0.15f)) {
if (u_alphaClip) {
float bayer = calc_bayer(gl_FragCoord.xy);
if (alpha * bayer * bayer < 0.1f) {
discard;
}
} else if (alpha < 0.05f) {
discard;
}
f_color = a_color * texColor;