Initial commit: Minecraft 光追着色器包（从零实现的 path tracing）

shaders/Lib/Programs/Post_VS.glsl

@@ -0,0 +1,12 @@
+// MinecraftPT — Post_VS
+// Fullscreen triangle vertex shader for composite passes.
+
+void main(){
+	// Fullscreen triangle
+	vec2 pos = vec2(
+		gl_VertexID == 0 ? -1.0 : (gl_VertexID == 1 ? 3.0 : -1.0),
+		gl_VertexID == 0 ? -1.0 : (gl_VertexID == 1 ? -1.0 : 3.0)
+	);
+
+	gl_Position = vec4(pos, 1.0, 1.0);
+}