• Kenneth Moreland's avatar
    Fix point merge for Marching Cubes with multiple isosurfaces · b544b8e0
    Kenneth Moreland authored
    When the Marching Cubes algorithm merges points together for multiple
    isosurfaces, it uses an ArrayHandleZip to combine the isosurface id and
    the edge identification. This is to prevent merging points from
    different isosurfaces. However, internally this has to do an array copy.
    
    It was doing this copy with `ArrayCopy`. A recent change to that method
    made the copy fail for `ArrayHandleZip`. The fix is to change to
    `ArrayCopyDevice`.
    
    The reason why this bug was introduced was because there was no test
    case for this specific use. A regression test has been updated to test
    for this case.
    b544b8e0