Initial commit

client/common/shaders/source/gbuffer.hlsl

@@ -0,0 +1,50 @@
+#include "common.h"
+
+// .xy = gbuffer width/height, .zw = inverse gbuffer width/height
+uniform float4 TextureSize;
+
+TEX_DECLARE2D(tex, 0);
+
+struct v2f
+{
+    float4 pos : POSITION;
+    float2 uv  : TEXCOORD0;
+};
+
+#if defined(GLSL) || defined(DX11)
+float4 convertPosition(float4 p)
+{
+    return p;
+}
+#else
+float4 convertPosition(float4 p)
+{
+    // half-pixel offset
+    return p + float4(-TextureSize.z, TextureSize.w, 0, 0);
+}
+#endif
+
+#if defined(GLSL)
+float2 convertUv(float4 p)
+{
+    return p.xy * 0.5 + 0.5;
+}
+#else
+float2 convertUv(float4 p)
+{
+    return p.xy * float2(0.5, -0.5) + 0.5;
+}
+#endif
+
+v2f gbufferVS( in float4 pos : POSITION )
+{
+    v2f o;
+    o.pos = convertPosition(pos);
+    o.uv =  convertUv(pos);
+    return o;
+}
+
+float4 gbufferPS( v2f i ) : COLOR0
+{
+    return tex2D( tex, i.uv );
+}