Fallback to QuadricClustering when accelerated LOD unavailable.
The VTK-m LevelOfDetail filter only supports triangulated polydata. This patch falls back to vtkQuadricClustering for other datasets.
Fixes #19030 (closed).
The VTK-m LevelOfDetail filter only supports triangulated polydata. This patch falls back to vtkQuadricClustering for other datasets.
Fixes #19030 (closed).