SuperTuxKart 1.5 upstream source (from official release tarball)

2026-06-11 20:04:02 +02:00
commit 2957e51aaa
8551 changed files with 1801800 additions and 0 deletions
@@ -0,0 +1,17 @@
+// Using numerical value from here
+// http://content.gpwiki.org/index.php/D3DBook:High-Dynamic_Range_Rendering
+
+vec3 getRGBFromCIEXxy(vec3 YxyColor)
+{
+    float Yovery = YxyColor.x / max(YxyColor.z, 0.1);
+    vec3 XYZ = vec3(YxyColor.y * Yovery, YxyColor.x, (1. - YxyColor.y - YxyColor.z) * Yovery);
+
+    mat3 XYZ2RGB = transpose(mat3(
+        vec3(3.2405, -.9693, .0556),
+        vec3(-1.5371, 1.8760, -.2040),
+        vec3(-.4985, .0416, 1.0572)));
+
+    vec3 RGBColor = XYZ2RGB * XYZ;
+    return max(RGBColor, vec3(0.));
+}
+