Gource is cool

gource/data/shaders/bloom.vert

@@ -0,0 +1,10 @@
+
+varying vec3 pos;
+
+void main()
+{
+    pos = gl_Vertex.xyz - gl_MultiTexCoord0.yzw;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+    gl_FrontColor = gl_Color;
+    gl_Position = ftransform();
+}