WFX

These files tell WoW which Shaders to use on different surfaces. The files are hardcoded into the client. As of 3.0.9, WoW loads:

• MapObj.wfx
  • Particle (//Particle shaders - move to another file.)
  • MapObjDiffuse
  • MapObjOpaque
  • MapObjSpecular
  • MapObjMetal
  • MapObjEnv
  • MapObjEnvMetal
• MapObjU.wfx
  • MapObjUDiffuse
  • MapObjUOpaque
  • MapObjUSpecular
  • MapObjUMetal
  • MapObjUEnv
  • MapObjUEnvMetal
• Model2.wfx
  • Projected_ModMod
  • Projected_ModAdd
• ShadowMap.wfx
  • ShadowMapRender
  • ShadowMapRenderSL

Bold characters are needed for parsing the file right. Non-bold functions are optional.

The shaders referenced in the RenderState*()s are references to the BLS files.

Effect(name, unk)	// this name is referenced from the app (hardcoded)
{
	FixedFunc()
	{
		Pass(type, passCount)                     // <=1 asserted
		{
			ColorOp0(mode);
			ColorOp1(mode);
			AlphaOp0(mode);
			AlphaOp1(mode);
			RenderStateARGB(shader, color, color); // see list below
			RenderStateF(shader, float, float); // float
			RenderStateI(shader, integer, integer); // see list below
		}
	}
	Shader()
	{
		Pass(type, passCount)                    // ==1 asserted
		{
			VertexShader(mode);
			PixelShader(mode);
			Specular(mode);
			RenderStateARGB(shader, color, color); // see list below
			RenderStateF(shader, float, float); // float
			RenderStateI(shader, integer, integer); // see list below
		}
	}
}

Pass: type

• Default
• Opaque
• AlphaKey
• Alpha
• Add
• Mod
• Mod2x
• ModAdd
• InvSrcAlphaAdd
• InvSrcAlphaOpaque
• SrcAlphaOpaque
• NoAlphaAdd
• ConstantAlpha

*****Op*: mode

• Mod
• Mod2x
• Add
• PassThru
• Decal
• Fade

RenderStateARGB: color

• white
• black
• every value getting a good result with strtoul(string, 0, 0x10)

RenderStateI: integer

• true
• false
• TexGen_Disable
• TexGen_Object
• TexGen_World
• TexGen_View
• TexGen_ViewReflection
• TexGen_ViewNormal
• TexGen_SphereMap
• TS_PassThru
• TS_Affine
• TS_Proj

RenderState: type

• MatDiffuse
• MatEmissive
• MatSpecular
• MatSpecularExp
• NormalizeNormals
• SceneAmbient
• DepthTest
• DepthFunc
• DepthWrite
• ColorWrite
• Culling
• ClipPlaneMask
• Lighting
• TexLodBiasZ // Z=0-7
• TexGenZ // Z=0-7
• TextureShaderZ // Z=0-7
• PointScale
• PointScaleAttenuation
• PointScaleMin
• PointScaleMax
• PointSprite
• ConstBlendAlpha
• Unknown