hassony2 / pyrender_sdf

Minimal rendering in python for shapes defined implicitely through signed distance functions

Minimal Signed Distance Function Object pure python renderer

This repo was mostly done as an exercise to understand Signed-Distance-Function-based rendering.

It provides basic utilities to render silhouettes and normals of objects represented by their Signed Distance Function.

demo.py shows an example on a sphere.

No parallelization is operated, and (this is no surprise! :) ) the computation is slow! (~5seconds for the minimal sphere-rendering example)

Very simple ray-marching is used (for more details see ray-marching-signed-distance-functions)

Renderings

(Obtained by running demo.py)

Sphere silhouette rendering

Sphere normals rendering

(Normal coordinates are x,y,z are scaled to be in [0, 1], and respectively mapped to the R, G and B channels.