public PartDescription(int indexStart, int indexCount, TagRef <ShaderTag> shader, MeshElementType elementType)
{
IndexStart = indexStart;
IndexCount = indexCount;
Shader = shader;
ElementType = elementType;
}
internal static extern void Mesh_QuerySphere(
IntPtr meshPtr,
double cx,
double cy,
double cz,
double radius,
ref IntPtr retIndices,
ref int numIndices,
MeshElementType element);
private static int[] QueryMesh(Mesh mesh, BoundingBox box, MeshElementType element)
{
IntPtr meshPtr = mesh.ToUnmanagedMesh();
IntPtr retIndicesPtr = IntPtr.Zero;
int nIndices = 0;
Unsafe.Mesh_QueryBox(meshPtr, box.ToArray(), ref retIndicesPtr, ref nIndices, element);
int[] retIndices = new int[nIndices];
Marshal.Copy(retIndicesPtr, retIndices, 0, nIndices);
Unsafe.ReleaseInt(retIndicesPtr, true);
Unsafe.Mesh_Delete(meshPtr);
return(retIndices);
}
private static int[] QueryMesh(Mesh mesh, Point3d center, double radius, MeshElementType element)
{
IntPtr meshptr = mesh.ToUnmanagedMesh();
IntPtr retIndicesPtr = IntPtr.Zero;
int nIndices = 0;
Unsafe.Mesh_QuerySphere(meshptr, center.X, center.Y, center.Z, radius, ref retIndicesPtr, ref nIndices, element);
int[] retIndices = new int[nIndices];
Marshal.Copy(retIndicesPtr, retIndices, 0, nIndices);
Unsafe.ReleaseInt(retIndicesPtr, true);
Unsafe.Mesh_Delete(meshptr);
return(retIndices);
}
internal static extern void Mesh_QueryBox(
IntPtr meshPtr,
[MarshalAs(UnmanagedType.LPArray)] double[] bounds,
ref IntPtr retIndices,
ref int numIndices,
MeshElementType element);
