The document compares the performance of different acceleration structures - bounding volume hierarchies (BVH) and spatial subdivision (SD) - for rendering 3D scenes. It tests scenes of increasing complexity from 3x3x3 grids up to 10x10x10 grids, with objects distributed both evenly and randomly. For all scenes, BVH and SD techniques provided faster rendering times than no acceleration, with performance generally improving as more triangles were grouped into each bounding volume. Spatial subdivision was more effective for evenly distributed scenes while BVH worked better for random scenes. The document also demonstrates texture mapping, bump mapping, reflection and refraction effects.