void JitGrid::setGrid<FloatGrid>(const FloatGrid::Ptr& ptr) {
if(gridType != GridFloat || planecount != 1) {
destroyGrid();
gridType = GridFloat;
planecount = 1;
}
float1Grid = ptr;
voxelSize = ptr->transform().voxelSize()[0];
}
void VDB::doDifference(VDB & vdb) {
const math::Transform
&sourceXform = vdb.grid->transform(),
&targetXform = grid->transform();
FloatGrid::Ptr cGrid = createLevelSet<FloatGrid>(grid->voxelSize()[0]);
cGrid->transform() = grid->transform();
// Compute a source grid to target grid transform.
openvdb::Mat4R xform =
sourceXform.baseMap()->getAffineMap()->getMat4() *
targetXform.baseMap()->getAffineMap()->getMat4().inverse();
// Create the transformer.
openvdb::tools::GridTransformer transformer(xform);
// Resample using trilinear interpolation.
transformer.transformGrid<openvdb::tools::BoxSampler, openvdb::FloatGrid>(
*vdb.grid, *cGrid);
csgDifference(*grid, *cGrid);
isUpdated = false;
}