private static Material ConvertToTextMaterial(Material material, Geometry textGeometry)
{
// Create a material that is sort of like a clone of the material passed in, but instead of being an
// infinite plane, it is shaped like the geometry passed in
if (material is MaterialGroup)
{
#region MaterialGroup
MaterialGroup retVal = new MaterialGroup();
foreach (Material childMaterial in ((MaterialGroup)material).Children)
{
// Recurse
retVal.Children.Add(ConvertToTextMaterial(childMaterial, textGeometry));
}
return retVal;
#endregion
}
Brush embeddedBrush = null;
Brush newBrush = null;
if (material is DiffuseMaterial)
{
#region DiffuseMaterial
DiffuseMaterial materialCast1 = (DiffuseMaterial)material;
if (materialCast1.Brush == null)
{
embeddedBrush = new SolidColorBrush(materialCast1.AmbientColor);
}
else
{
embeddedBrush = materialCast1.Brush;
}
newBrush = new DrawingBrush(new GeometryDrawing(embeddedBrush, null, textGeometry));
return new DiffuseMaterial(newBrush);
#endregion
}
else if (material is SpecularMaterial)
{
#region SpecularMaterial
SpecularMaterial materialCast2 = (SpecularMaterial)material;
embeddedBrush = materialCast2.Brush;
newBrush = new DrawingBrush(new GeometryDrawing(embeddedBrush, null, textGeometry));
return new SpecularMaterial(newBrush, materialCast2.SpecularPower);
#endregion
}
else if (material is EmissiveMaterial)
{
#region EmissiveMaterial
EmissiveMaterial materialCast3 = (EmissiveMaterial)material;
if (materialCast3.Brush == null)
{
embeddedBrush = new SolidColorBrush(materialCast3.Color);
}
else
{
embeddedBrush = materialCast3.Brush;
}
return new EmissiveMaterial(newBrush);
#endregion
}
throw new ApplicationException("Unknown type of material: " + material.GetType().ToString());
}
// Returns true if two materials have a parallel structure.
bool AreMaterialsParallel(Material mat1, Material mat2)
{
if (mat1 is MaterialGroup && mat2 is MaterialGroup)
{
int num = (mat1 as MaterialGroup).Children.Count;
if (num != (mat2 as MaterialGroup).Children.Count)
return false;
for (int i = 0; i < num; i++)
if (!AreMaterialsParallel((mat1 as MaterialGroup).Children[i],
(mat2 as MaterialGroup).Children[i]))
return false;
return true;
}
return mat1 != null && mat2 != null && mat1.GetType() == mat2.GetType();
}