🚚 Move shader code to GLSL files

2022-05-13 08:27:09 +02:00
parent 77d5de7b8e
commit 46cc997e2a
43 changed files with 1303 additions and 1334 deletions
@@ -0,0 +1,6 @@
+// The Shell.GLSLEffect uses straight alpha blending. This helper method allows
+// compositing color values in the shader in the same way.
+vec4 alphaOver(vec4 under, vec4 over) {
+  float alpha = over.a + under.a * (1.0 - over.a);
+  return vec4((over.rgb * over.a + under.rgb * under.a * (1.0 - over.a)) / alpha, alpha);
+}