add gs

Player2014/shaders/source/shadowquad.hlsl

@@ -0,0 +1,28 @@
+#include "globals.h"
+
+struct Appdata
+{
+    float4 Position	    : POSITION;
+};
+
+struct VertexOutput
+{
+    float4 HPosition    : POSITION;
+};
+
+uniform float4 Color;
+
+VertexOutput QuadVS(Appdata IN)
+{
+    VertexOutput OUT = (VertexOutput)0;
+
+    OUT.HPosition = IN.Position;
+    OUT.HPosition.z = 0.5; // force set depth to avoid depth clipping
+
+	return OUT;
+}
+
+float4 QuadPS(): COLOR0
+{
+    return Color;
+}