1 files changed, 25 insertions, 0 deletions
diff --git a/src/demos/dualDepthPeeling/shaders/front_peeling_peel.fp b/src/demos/dualDepthPeeling/shaders/front_peeling_peel.fp
new file mode 100644
index 0000000..7f58b3e
--- /dev/null
+++ b/src/demos/dualDepthPeeling/shaders/front_peeling_peel.fp
@@ -0,0 +1,25 @@
+//--------------------------------------------------------------------------------------
+// Order Independent Transparency with Depth Peeling
+//
+// Author: Louis Bavoil
+// Email: [email protected]
+//
+// Copyright (c) NVIDIA Corporation. All rights reserved.
+//--------------------------------------------------------------------------------------
+
+uniform samplerRECT DepthTex;
+
+vec4 ShadeFragment();
+
+void main(void)
+{
+	// Bit-exact comparison between FP32 z-buffer and fragment depth
+	float frontDepth = textureRect(DepthTex, gl_FragCoord.xy).r;
+	if (gl_FragCoord.z <= frontDepth) {
+		discard;
+	}
+	
+	// Shade all the fragments behind the z-buffer
+	vec4 color = ShadeFragment();
+	gl_FragColor = vec4(color.rgb * color.a, color.a);
+}