A Recursive Algorithm to Render Signed Distance Fields
Summary
The article introduces a recursive, divide-and-conquer approach to rendering Signed Distance Fields (SDFs) on CPU, aiming to reduce ray counts and boost frame rates. It discusses the limitations of traditional raymarching, the potential of multi-pass and cone marching techniques, and shares a proof-of-concept that achieves notable performance gains on CPU hardware, with prospects for GPU implementations and further optimizations.