1 files changed, 170 insertions, 0 deletions
diff --git a/o3d/compiler/technique/test_data/shadow_map.fx b/o3d/compiler/technique/test_data/shadow_map.fx
new file mode 100644
index 0000000..b4f1c88
--- /dev/null
+++ b/o3d/compiler/technique/test_data/shadow_map.fx
@@ -0,0 +1,170 @@
+// Shader from NVidia example documentation:
+// ftp://download.nvidia.com/developer/SDK/Individual_Samples/
+//       MEDIA/docPix/docs/FX_Shadowing.pdf
+
+texture CTex : RENDERCOLORTARGET <
+  float2 Dimensions = {256,256};
+  string Format = "x8b8g8r8" ;
+  string UIWidget = "None";
+>;
+
+sampler CSamp = sampler_state {
+  texture = <CTex>;
+  AddressU = CLAMP; AddressV = CLAMP;
+  MipFilter = NONE;
+  MinFilter = LINEAR;
+  MagFilter = LINEAR;
+};
+
+texture DTex : RENDERDEPTHSTENCILTARGET <
+  float2 Dimensions = {256,256};
+  string format = "D24S8_SHADOWMAP";
+  string UIWidget = "None";
+>;
+
+sampler DSamp = sampler_state {
+  texture = <DTex>;
+  AddressU = CLAMP; AddressV = CLAMP;
+  MipFilter = NONE;
+  MinFilter = LINEAR;
+  MagFilter = LINEAR;
+};
+
+float Script : STANDARDSGLOBAL <
+  string UIWidget = "none";
+  string ScriptClass = "sceneorobject";
+  string ScriptOrder = "standard";
+  string ScriptOutput = "color";
+  string Script = "Tech=Technique?Shadowed:Unshadowed;";
+> = 0.8; // version #
+
+// The following global variables are values to be used
+// when clearing color and/or depth buffers
+float4 ClearColor <
+  string UIWidget = "color";
+  string UIName = "background";
+> = {0,0,0,0.0};
+
+float ClearDepth <
+  string UIWidget = "none";
+> = 1.0;
+
+float4 ShadowClearColor <
+  string UIWidget = "none";
+> = {1,1,1,0.0};
+
+void lightingCalc(ShadowingVertexOutput IN,
+                  out float3 litContrib,
+                  out float3 ambiContrib) {
+  float3 Nn = normalize(IN.WNormal);
+  float3 Vn = normalize(IN.WView);
+  Nn = faceforward(Nn,-Vn,Nn);
+  float falloff = 1.0 / dot(IN.LightVec,IN.LightVec);
+  float3 Ln = normalize(IN.LightVec);
+  float3 Hn = normalize(Vn + Ln);
+  float hdn = dot(Hn,Nn);
+  float ldn = dot(Ln,Nn);
+  float4 litVec = lit(ldn,hdn,SpecExpon);
+  ldn = litVec.y * SpotLightIntensity;
+  ambiContrib = SurfColor * AmbiLightColor;
+  float3 diffContrib = SurfColor*(Kd * ldn * SpotLightColor);
+  float3 specContrib = ((ldn * litVec.z * Ks) * SpotLightColor);
+  float3 result = diffContrib + specContrib;
+  float cone = tex2Dproj(SpotSamp,IN.LProj);
+  litContrib = ((cone*falloff) * result);
+}
+
+float4 useShadowPS(ShadowingVertexOutput IN) : COLOR {
+  float3 litPart, ambiPart;
+  lightingCalc(IN,litPart,ambiPart);
+  float4 shadowed = tex2Dproj(ShadDepthSampler,IN.LProj);
+  return float4((shadowed.x*litPart)+ambiPart,1);
+}
+
+float4 unshadowedPS(ShadowingVertexOutput IN) : COLOR {
+  float3 litPart, ambiPart;
+  lightingCalc(IN,litPart,ambiPart);
+}
+
+technique Unshadowed <
+  string Script = "Pass=NoShadow;";
+> {
+  pass NoShadow <
+      string Script =
+      "RenderColorTarget0=;"
+      "RenderDepthStencilTarget=;"
+      "RenderPort=;"
+      "ClearSetColor=ClearColor;"
+      "ClearSetDepth=ClearDepth;"
+      "ClearDepth=Color;"
+      "Clear=Depth;"
+      "Draw=geometry;";
+  > {
+    VertexShader = compile vs_2_0
+        shadowUseVS(WorldXf,
+                    WorldITXf,
+                    WorldViewProjXf,
+                    ShadowViewProjXf,
+                    ViewIXf,
+                    ShadBiasXf,
+                    SpotLightPos);
+    ZEnable = true;
+    ZWriteEnable = true;
+    ZFunc = LessEqual;
+    CullMode = None;
+    PixelShader = compile ps_2_a unshadowedPS();
+  }
+}
+
+technique Shadowed <
+  string Script = "Pass=MakeShadow;"
+                  "Pass=UseShadow;";
+> {
+  pass MakeShadow <
+      string Script =
+        "RenderColorTarget0=ColorShadMap;"
+        "RenderDepthStencilTarget=ShadDepthTarget;"
+        "RenderPort=light0;"
+        "ClearSetColor=ShadowClearColor;"
+        "ClearSetDepth=ClearDepth;"
+        "Clear=Color;"
+        "Clear=Depth;"
+        "Draw=geometry;";
+  > {
+    VertexShader = compile vs_2_0
+        shadowGenVS(WorldXf,
+                    WorldITXf,
+                    ShadowViewProjXf);
+    ZEnable = true;
+    ZWriteEnable = true;
+    ZFunc = LessEqual;
+    CullMode = None;
+    // no pixel shader needed!
+  }
+
+  pass UseShadow <
+      string Script =
+        "RenderColorTarget0=;"
+        "RenderDepthStencilTarget=;"
+        " RenderPort=;"
+        "ClearSetColor=ClearColor;"
+        "ClearSetDepth=ClearDepth;"
+        "Clear=Color;"
+        "Clear=Depth;"
+        "Draw=geometry;";
+  > {
+    VertexShader = compile vs_2_0
+        shadowUseVS(WorldXf,
+                    WorldITXf,
+                    WorldViewProjXf,
+                    ShadowViewProjXf,
+                    ViewIXf,
+                    ShadBiasXf,
+                    SpotLightPos);
+    ZEnable = true;
+    ZWriteEnable = true;
+    ZFunc = LessEqual;
+    CullMode = None;
+    PixelShader = compile ps_2_a useShadowPS();
+  }
+}