/*
struct SurfaceOutput {
half3 Albedo;
half3 Normal;
half3 Emission;
half Specular;
half Gloss;
half Alpha;
};
*/
public ShaderCodeBuilder(MaterialContainer mc, MeshContainer mesh)
{
float f1 = 1;
f1.GetType();
_normalizeNormals = true;
if (mesh != null)
AnalyzeMesh(mesh);
else
{
_hasVertices = _hasNormals = _hasUVs = true;
}
AnalyzeMaterial(mc);
StringBuilder vs = new StringBuilder();
MeshInputDeclarations(vs);
MatrixDeclarations(vs);
VSBody(vs);
_vs = vs.ToString();
StringBuilder ps = new StringBuilder();
PixelInputDeclarations(ps);
PSBody(ps);
_ps = ps.ToString();
}
private void AnalyzeMaterial(MaterialContainer mc)
{
_hasDiffuse = mc.HasDiffuse;
if (_hasDiffuse)
_hasDiffuseTexture = (mc.Diffuse.Texture != null);
_hasSpecular = mc.HasSpecular;
if (_hasSpecular)
_hasSpecularTexture = (mc.Specular.Texture != null);
_hasEmissive = mc.HasEmissive;
if (_hasEmissive)
_hasEmissiveTexture = (mc.Emissive.Texture != null);
_hasBump = mc.HasBump; // always has a texture...
}
private ShaderEffect LookupMaterial(MaterialContainer mc)
{
ShaderEffect mat;
if (!_matMap.TryGetValue(mc, out mat))
{
mat = MakeMaterial(mc);
mat.AttachToContext(_rc);
_matMap.Add(mc, mat);
}
return mat;
}
private ShaderEffect MakeMaterial(MaterialContainer mc)
{
ShaderCodeBuilder scb = new ShaderCodeBuilder(mc, null);
var effectParameters = AssembleEffectParamers(mc, scb);
ShaderEffect ret = new ShaderEffect(new []
{
new EffectPassDeclaration()
{
VS = scb.VS,
PS = scb.PS,
StateSet = new RenderStateSet()
{
ZEnable = true,
AlphaBlendEnable = false
}
}
},
effectParameters
);
return ret;
}
private List<EffectParameterDeclaration> AssembleEffectParamers(MaterialContainer mc, ShaderCodeBuilder scb)
{
List<EffectParameterDeclaration> effectParameters = new List<EffectParameterDeclaration>();
if (mc.HasDiffuse)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.DiffuseColorName,
Value = (object) mc.Diffuse.Color
});
if (mc.Diffuse.Texture != null)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.DiffuseMixName,
Value = mc.Diffuse.Mix
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.DiffuseTextureName,
Value = LoadTexture(mc.Diffuse.Texture)
});
}
}
if (mc.HasSpecular)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.SpecularColorName,
Value = (object) mc.Specular.Color
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.SpecularShininessName,
Value = (object) mc.Specular.Shininess
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.SpecularIntensityName,
Value = (object) mc.Specular.Intensity
});
if (mc.Specular.Texture != null)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.SpecularMixName,
Value = mc.Specular.Mix
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.SpecularTextureName,
Value = LoadTexture(mc.Specular.Texture)
});
}
}
if (mc.HasEmissive)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.EmissiveColorName,
Value = (object) mc.Emissive.Color
});
if (mc.Emissive.Texture != null)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.EmissiveMixName,
Value = mc.Emissive.Mix
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.EmissiveTextureName,
Value = LoadTexture(mc.Emissive.Texture)
});
}
}
if (mc.HasBump)
{
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.BumpIntensityName,
Value = mc.Bump.Intensity
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = scb.BumpTextureName,
Value = LoadTexture(mc.Bump.Texture)
});
}
// Any light calculation needed at all?
if (mc.HasDiffuse || mc.HasSpecular)
{
// Light calculation parameters
effectParameters.Add(new EffectParameterDeclaration
{
Name = ShaderCodeBuilder.LightColorName,
Value = new float3(1, 1, 1)
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = ShaderCodeBuilder.LightIntensityName,
Value = (float) 1
});
effectParameters.Add(new EffectParameterDeclaration
{
Name = ShaderCodeBuilder.LightDirectionName,
Value = new float3(0, 0, 1)
});
}
return effectParameters;
}
