Mixture of Volumetric Primitives for Efficient Neural Rendering

tons of small boxes around the surface

• kind of like mesh, but build a small nerf for each vertex: combination of volumetric and primitie-based approaches
  • volumetric primitive: center, rotation, scale, and a dense voxel grid
• decoder: latent code – conv –> set of primitives
• windowing function: a weight of distance from the primitive origin: moving the primitive instead of learning the payload