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);
}
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);
}
/// <summary>
/// This might not be a deep copy, so changes to the original may affect the created mesh (this is bug but im lazy)
/// </summary>
/// <param name="original"></param>
/// <returns></returns>
public IMesh CreateOptimized(IMesh original)
{
materials.Clear();
var builder = new MeshBuilder();
foreach (var oriPart in original.GetCoreData().Parts)
{
MeshBuilder.MeshMaterial meshMaterial = getMaterial(oriPart.MeshMaterial, builder);
builder.AddGeometryData(oriPart.MeshPart.GetGeometryData(), meshMaterial, oriPart.ObjectMatrix.dx());
}
mesh = builder.CreateMesh() as RAMMesh;
copyCollisionData(mesh, original);
return(mesh);
}
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);
}
private void copyCollisionData(RAMMesh ret, IMesh original)
{
ret.GetCollisionData().Boxes.AddRange(original.GetCollisionData().Boxes);
ret.GetCollisionData().ConvexMeshes.AddRange(original.GetCollisionData().ConvexMeshes);
ret.GetCollisionData().TriangleMesh = original.GetCollisionData().TriangleMesh;
}