init

2026-07-31 18:18:18 +02:00
commit a061aff066
137 changed files with 3491 additions and 0 deletions
@@ -0,0 +1,84 @@
+shader_type canvas_item;
+uniform int radius = 5;
+uniform vec3 offset=vec3(0.0);
+uniform sampler2D SCREEN_TEXTURE : hint_screen_texture;
+
+void fragment()
+ {
+     vec2 src_size = vec2 ( SCREEN_PIXEL_SIZE.x,  SCREEN_PIXEL_SIZE.y);
+     vec2 uv = SCREEN_UV.xy;
+     float n = float((radius + 1) * (radius + 1));
+     vec3 m0 = offset; vec3 m1 = offset; vec3 m2 = offset; vec3 m3 = offset;
+     vec3 s0 = offset; vec3 s1 = offset; vec3 s2 = offset; vec3 s3 = offset;
+     vec3 c;
+
+     for (int j = -radius; j <= 0; ++j)  {
+         for (int i = -radius; i <= 0; ++i)  {
+             c = texture(SCREEN_TEXTURE, uv + vec2(float(i),float(j)) * src_size).rgb;
+             m0 += c;
+             s0 += c * c;
+         }
+     }
+
+     for (int j = -radius; j <= 0; ++j)  {
+         for (int i = 0; i <= radius; ++i)  {
+             c = texture(SCREEN_TEXTURE, uv + vec2(float(i),float(j)) * src_size).rgb;
+             m1 += c;
+             s1 += c * c;
+         }
+     }
+
+     for (int j = 0; j <= radius; ++j)  {
+         for (int i = 0; i <= radius; ++i)  {
+             c = texture(SCREEN_TEXTURE, uv + vec2(float(i),float(j)) * src_size).rgb;
+             m2 += c;
+             s2 += c * c;
+         }
+     }
+
+     for (int j = 0; j <= radius; ++j)  {
+         for (int i = -radius; i <= 0; ++i)  {
+             c = texture(SCREEN_TEXTURE, uv + vec2(float(i),float(j)) * src_size).rgb;
+             m3 += c;
+             s3 += c * c;
+         }
+     }
+
+
+     float min_sigma2 = 1e+2;
+     m0 /= n;
+     s0 = abs(s0 / n - m0 * m0);
+
+     float sigma2 = s0.r + s0.g + s0.b;
+     if (sigma2 < min_sigma2) {
+         min_sigma2 = sigma2;
+         COLOR = vec4(m0, 1.0);
+     }
+
+     m1 /= n;
+     s1 = abs(s1 / n - m1 * m1);
+
+     sigma2 = s1.r + s1.g + s1.b;
+     if (sigma2 < min_sigma2) {
+         min_sigma2 = sigma2;
+         COLOR = vec4(m1, 1.0);
+     }
+
+     m2 /= n;
+     s2 = abs(s2 / n - m2 * m2);
+
+     sigma2 = s2.r + s2.g + s2.b;
+     if (sigma2 < min_sigma2) {
+         min_sigma2 = sigma2;
+         COLOR = vec4(m2, 1.0);
+     }
+
+     m3 /= n;
+     s3 = abs(s3 / n - m3 * m3);
+
+     sigma2 = s3.r + s3.g + s3.b;
+     if (sigma2 < min_sigma2) {
+         min_sigma2 = sigma2;
+         COLOR = vec4(m3, 1.0);
+     }
+ }