public IMesh CreateMesh()
{
var mesh = new RAMMesh();
foreach (var pair in parts)
{
var mat = pair.Key;
var data = pair.Value;
if (data.Positions.Count == 0)
{
continue;
}
var geom = new MeshPartGeometryData();
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = data.Positions.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Position
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = data.Normals.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Normal
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector2 = data.Texcoords.ToArray(),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Texcoord
});
geom.Sources.Add(new MeshPartGeometryData.Source
{
DataVector3 = calculateTangents(data),
Number = 0,
Semantic = MeshPartGeometryData.Semantic.Tangent
});
var part = new RAMMeshPart();
part.SetGeometryData(geom);
mesh.GetCoreData().Parts.Add(new MeshCoreData.Part
{
MeshMaterial = mat.ToMeshCoreDataMaterial(),
MeshPart = part,
ObjectMatrix = Matrix.Identity.xna()
});
}
return(mesh);
}
/*private IMeshPart findOrCreatePart(MeshCoreData.Material original)
* {
* foreach (var mat in materials)
* if (isIdenticalMaterial(original, mat.Key)) return mat.Value;
*
* var copy = createMaterialCopy(original);
* var ret = createPart(copy);
* materials.Add(copy, ret);
*
* return ret;
*
* }*/
private IMeshPart createPart(MeshCoreData.Material material)
{
var ret = new RAMMeshPart();
var part = new MeshCoreData.Part();
part.MeshMaterial = material;
part.ObjectMatrix = Matrix.Identity;
part.MeshPart = ret;
mesh.GetCoreData().Parts.Add(part);
return(ret);
}
public static IMesh Transform(IMesh mesh, Matrix transform)
{
//TODO: first take deep copy?
var ret = new RAMMesh();
ret.GetCoreData().Parts = mesh.GetCoreData().Parts.Select(p =>
{
var nPart = new MeshCoreData.Part();
nPart.ObjectMatrix = p.ObjectMatrix * transform.xna();
nPart.MeshMaterial = p.MeshMaterial;
nPart.MeshPart = p.MeshPart;
return(nPart);
}).ToList();
return(ret);
}
public static IMesh CreateSimpleTestMesh()
{
IMesh mesh;
mesh = new RAMMesh();
var part = new MeshCoreData.Part();
part.ObjectMatrix = Matrix.Identity;
part.MeshPart = new RAMMeshPart();
((RAMMeshPart)part.MeshPart).SetGeometryData(MeshPartGeometryData.CreateTestSquare());
var mat = new MeshCoreData.Material();
mat.DiffuseMap = GetTestTexture();
part.MeshMaterial = mat;
mesh.GetCoreData().Parts.Add(part);
return(mesh);
}