Neural 3D Mesh Renderer

problem: rendering 3d model is not differentiable

• …until now, this paper proposes an approximate gradient for rendering

repersentation of 3d models

• voxels: low resolution
• point clouds: not scalable, cannot apply texture and lighting

rasterization: sampling a pixel’s color same as the corresponding facet’ color

• instead of defining color as square wave, replace it with linear functions

regularization: interection angles of facets close to 180 degrees

applications: style transfer, reconstruction, etc.