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Diffstat (limited to 'src/extras/shaders/leedsVehicle_add_PS.hlsl')
-rw-r--r--src/extras/shaders/leedsVehicle_add_PS.hlsl34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/extras/shaders/leedsVehicle_add_PS.hlsl b/src/extras/shaders/leedsVehicle_add_PS.hlsl
new file mode 100644
index 00000000..943926cf
--- /dev/null
+++ b/src/extras/shaders/leedsVehicle_add_PS.hlsl
@@ -0,0 +1,34 @@
+struct VS_out {
+ float4 Position : POSITION;
+ float3 TexCoord0 : TEXCOORD0;
+ float2 TexCoord1 : TEXCOORD1;
+ float4 Color : COLOR0;
+};
+
+sampler2D diffTex : register(s0);
+sampler2D envTex : register(s1);
+
+float4 fogColor : register(c0);
+
+float4 fxparams : register(c1);
+
+#define shininess (fxparams.x)
+
+float4 main(VS_out input) : COLOR
+{
+ float4 pass1 = input.Color*tex2D(diffTex, input.TexCoord0.xy);
+ float4 pass2 = tex2D(envTex, input.TexCoord1.xy);
+ pass2.a *= shininess;
+
+ pass1.rgb = lerp(fogColor.rgb, pass1.rgb, input.TexCoord0.z);
+ pass2.rgb = lerp(float3(0.0, 0.0, 0.0), pass2.rgb, input.TexCoord0.z);
+
+ // We simulate drawing this in two passes.
+ // First pass with standard blending, second with addition
+ // We premultiply alpha so render state should be one.
+ float4 color;
+ color.rgb = pass1.rgb*pass1.a + pass2.rgb*pass2.a;
+ color.a = pass1.a;
+
+ return color;
+}