Common technologies to render Voxels

1.) Heightmap based Voxel-Terrain. Ref

2.) Voxlap Technology. Ref1 Ref2

3.) Splatting / Rendering voxels as sprites. Ref1 Ref2

4.) Sparse Voxel Octree (SVO) Raycasting. Ref

5.) Mixed Octree / Regular Grid Raycasting. Ref

6.) Mixed Polygon / Voxel (Splatting) rendering Ref

7.) Rendering Voxels as Polygons.Ref