initial

materialsystem/stdshaders/sky_ps2x.fxc

@@ -0,0 +1,27 @@
+//========== Copyright (c) Valve Corporation, All rights reserved. ==========//
+
+// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA"	"0..1"	[ps20b] [PC]
+// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA"	"0..0"	[ps20b] [CONSOLE]
+
+#include "common_ps_fxc.h"
+
+#if defined( SHADER_MODEL_PS_2_0 )
+#	define WRITE_DEPTH_TO_DESTALPHA 0
+#endif
+
+sampler BaseTextureSampler	: register( s0 );
+float4 InputScale			: register( c0 );
+
+struct PS_INPUT
+{
+	float2 baseTexCoord		: TEXCOORD0;
+};
+
+float4_color_return_type main( PS_INPUT i ) : COLOR
+{
+	float4 color = tex2D( BaseTextureSampler, i.baseTexCoord.xy );
+	color.rgb *= InputScale.rgb;
+	
+	// This is never fogged.
+	return FinalOutput( color, 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_LINEAR, WRITE_DEPTH_TO_DESTALPHA, 1e20 ); //when writing depth to dest alpha, write a value guaranteed to saturate
+}