https://github.com/xkevio/cuda-raytracer

A simple ray tracer written with CUDA that saves its output in a .ppm file, CPU version included for reference.
https://github.com/xkevio/cuda-raytracer

cpu cuda cuda-raytracer gpu

Last synced: 10 months ago
JSON representation

A simple ray tracer written with CUDA that saves its output in a .ppm file, CPU version included for reference.

• Host: GitHub
• URL: https://github.com/xkevio/cuda-raytracer
• Owner: xkevio
• License: mit
• Created: 2021-02-07T17:12:41.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2023-01-04T22:00:56.000Z (over 3 years ago)
• Last Synced: 2025-04-06T09:16:15.060Z (about 1 year ago)
• Topics: cpu, cuda, cuda-raytracer, gpu
• Language: Cuda
• Homepage:
• Size: 970 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# CUDA-Raytracer

A simple ray tracer written with CUDA that saves its output in a .ppm file, CPU version included for reference. Below, you can find the rendered image and a performance analysis.

This was made as a final project for the GPU programming course at Otto-von-Guericke University Magdeburg.

## The Render

The code currently generates the following image, though it does support more spheres and light sources:

![3 spheres](images/img.png)

## Performance Analysis

### CPU version (serial vs parallel):

> Note: In the diagrams I used the german spelling of "serial"

![serial](images/CPU%20\(seriell,%20with%20-O2\)%20@%204%20Spheres.png)

![parallel](images/CPU%20\(OpenMP,%20with%20-O2\)%20@%204%20Spheres.png)

### GPU version:

![gpu4spheres](images/GPU%20@%204%20Spheres.png)

> Direct comparison with the parallel CPU version:

![cpuvsgpu](images/CPU%20vs%20GPU%20\(4%20Spheres\).png)

### CPU vs GPU Direct comparison with more than 4 spheres:

> Note: The time axis is shown on a logarithmic scale

![all](images/GPU%20@%202048x2048%20und%20CPU%20\(OpenMP,%20-O2\)%20@%202048x2048.png)