/raycasting-GPU

Prog GPU POC SDL1

Primary LanguageCuda

raycasting-GPU

This project is a proof of concept. The goal is to show that raycasting can be accelerated with GPU. I have used SDL 1.2 on purpose because it uses CPU rendering. This enable to do some comparison between a full CPU rendering and a GPU rendering.

screenshot

Version

We have two differents implementations in cuda:

  • main.cu is a naive implementation that runs better on IGPU and old GPU.
  • main2.cu fix the speed variance issue and runs better on recent GPU.

Build

  • dependencies: sdl12-compat for CPU and GPU version, cuda for GPU version and optionally hipcc / hipify-clang if you are using AMD/ATI graphic cards.
  • compile: make to build CPU version or make nvidia / make amd for GPU version.
  • post-compilation: you may have to adjust CAMERA_SPEED to your GPU performance in the source code main.h