unify shader names(2)

1 files changed, 29 insertions, 0 deletions

diff --git a/src/demos/dualDepthPeeling/shader/wavg_final.fp b/src/demos/dualDepthPeeling/shader/wavg_final.fp
new file mode 100644
index 0000000..034491c
--- /dev/null
+++ b/src/demos/dualDepthPeeling/shader/wavg_final.fp
@@ -0,0 +1,29 @@
+//--------------------------------------------------------------------------------------
+// Order Independent Transparency with Average Color
+//
+// Author: Louis Bavoil
+// Email: [email protected]
+//
+// Copyright (c) NVIDIA Corporation. All rights reserved.
+//--------------------------------------------------------------------------------------
+
+uniform samplerRECT ColorTex0;
+uniform samplerRECT ColorTex1;
+uniform vec3 BackgroundColor;
+
+void main(void)
+{
+	vec4 SumColor = textureRect(ColorTex0, gl_FragCoord.xy);
+	float n = textureRect(ColorTex1, gl_FragCoord.xy).r;
+
+	if (n == 0.0) {
+		gl_FragColor.rgb = BackgroundColor;
+		return;
+	}
+
+	vec3 AvgColor = SumColor.rgb / SumColor.a;
+	float AvgAlpha = SumColor.a / n;
+
+	float T = pow(1.0-AvgAlpha, n);
+	gl_FragColor.rgb = AvgColor * (1 - T) + BackgroundColor * T;
+}