public Actor ProcessModel(string fileName, Model model, Vector3 position, float orientation)
{
previewed = true;
var actorDesc = new ActorDescription();
if (fileName != null)
{
encoder = new PxMeshEncoder(fileName);
}
foreach (ModelMesh mesh in model.Meshes)
{
actorDesc.Shapes.Add(RetrievePhysicsTriangleMeshFromMesh(mesh, model.Root.Transform *
mesh.ParentBone.Transform, true, ref encoder));
}
actorDesc.GlobalPose = Matrix.CreateRotationY(orientation) * Matrix.CreateTranslation(position);
//actorDesc.GlobalPose = modelSceneNode.Model.Root.Transform;
return(PhysX.Instance.Scene.CreateActor(actorDesc));
//PhysicsHelper.SetActorCollisionGroup(modelSceneNode.Actor, CollisionGroup.GROUP_COLLIDABLE_NON_PUSHABLE);
}
public static TriangleMeshShapeDescription RetrievePhysicsTriangleMeshFromMesh(ModelMesh mesh, Matrix transforms, bool flipNormals, ref PxMeshEncoder encoder)
{
Vector3[] vertices;
VertexPositionNormalTexture[] meshVerts;
var triangleMeshDesc = new TriangleMeshDescription();
triangleMeshDesc.TriangleCount = mesh.MeshParts[0].PrimitiveCount;
triangleMeshDesc.AllocateTriangles <int>(mesh.MeshParts[0].PrimitiveCount);
meshVerts = new VertexPositionNormalTexture[mesh.MeshParts[0].NumVertices];
if (mesh.IndexBuffer.IndexElementSize == IndexElementSize.SixteenBits)
{
var indices = new short[mesh.IndexBuffer.SizeInBytes / 2];
mesh.IndexBuffer.GetData(indices);
foreach (int ui in indices)
{
triangleMeshDesc.TriangleStream.Write(ui);
}
}
else
{
var indices = new int[mesh.IndexBuffer.SizeInBytes / 4];
mesh.IndexBuffer.GetData(indices);
foreach (int ui in indices)
{
triangleMeshDesc.TriangleStream.Write(ui);
}
}
mesh.VertexBuffer.GetData(meshVerts);
vertices = new Vector3[mesh.MeshParts[0].NumVertices];
for (int i = 0; i < meshVerts.Length; i++)
{
vertices[i] = meshVerts[i].Position;
}
triangleMeshDesc.VertexCount = vertices.Length;
triangleMeshDesc.AllocateVertices <Vector3>(vertices.Length);
foreach (Vector3 vec in vertices)
{
triangleMeshDesc.VerticesStream.Write(vec);
}
if (flipNormals)
{
triangleMeshDesc.Flags = MeshFlag.FlipNormals;
}
var stream = new MemoryStream();
Cooking.InitializeCooking(new ConsoleOutputStream());
Cooking.CookTriangleMesh(triangleMeshDesc, stream);
Cooking.CloseCooking();
stream.Position = 0;
if (encoder != null)
{
encoder.AddStream(stream);
}
TriangleMesh pMesh = PhysX.Instance.Core.CreateTriangleMesh(stream);
// Create TriangleMesh above code segment.
pMesh.SaveToDescription();
var tmsd = new TriangleMeshShapeDescription();
tmsd.TriangleMesh = pMesh;
tmsd.LocalPose = transforms;
tmsd.MeshPagingMode = MeshPagingMode.Auto;
return(tmsd);
}
