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Cleanup: Simplify logic for adding grid in points to volume node 

Instead of creating a separate grid first and then merging the points
to volume grid, use the recently added `BKE_volume_grid_add_vdb`
helper function for this purpose.
This commit is contained in:
Hans Goudey 2021-10-30 17:26:18 -05:00
parent 9cfffe8468
commit ae9052a33e
Notes: blender-bot 2023-02-14 02:22:07 +01:00 
Referenced by issue #92663, Snap Selected to Active not working properly.
1 changed files with 3 additions and 7 deletions
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10
source/blender/nodes/geometry/nodes/node_geo_points_to_volume.cc
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@ -222,16 +222,12 @@ static void initialize_volume_component_from_points(GeoNodeExecParams &params,
Volume *volume = (Volume *)BKE_id_new_nomain(ID_VO, nullptr);
BKE_volume_init_grids(volume);
VolumeGrid *c_density_grid = BKE_volume_grid_add(volume, "density", VOLUME_GRID_FLOAT);
openvdb::FloatGrid::Ptr density_grid = openvdb::gridPtrCast<openvdb::FloatGrid>(
BKE_volume_grid_openvdb_for_write(volume, c_density_grid, false));
const float density = params.get_input<float>("Density");
convert_to_grid_index_space(voxel_size, positions, radii);
openvdb::FloatGrid::Ptr new_grid = generate_volume_from_points(positions, radii, density);
/* This merge is cheap, because the #density_grid is empty. */
density_grid->merge(*new_grid);
density_grid->transform().postScale(voxel_size);
new_grid->transform().postScale(voxel_size);
BKE_volume_grid_add_vdb(*volume, "density", std::move(new_grid));
r_geometry_set.keep_only({GEO_COMPONENT_TYPE_VOLUME, GEO_COMPONENT_TYPE_INSTANCES});
r_geometry_set.replace_volume(volume);
}