https://github.com/jsoulier/sdl3_ray_tracing

Ray Tracing In One Weekend using the new SDL3 GPU API
https://github.com/jsoulier/sdl3_ray_tracing

c glsl raytracing sdl sdl2 sdl3 shaders

Last synced: 3 days ago
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Ray Tracing In One Weekend using the new SDL3 GPU API

• Host: GitHub
• URL: https://github.com/jsoulier/sdl3_ray_tracing
• Owner: jsoulier
• License: unlicense
• Created: 2025-01-28T08:55:11.000Z (13 days ago)
• Default Branch: main
• Last Pushed: 2025-01-30T02:28:15.000Z (11 days ago)
• Last Synced: 2025-01-30T03:22:35.397Z (11 days ago)
• Topics: c, glsl, raytracing, sdl, sdl2, sdl3, shaders
• Language: C
• Homepage:
• Size: 698 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# SDL3 Ray Tracing

Implementation of [Ray Tracing in One Weekend](https://raytracing.github.io/) using the new SDL3 GPU API with compute shaders

![](image.bmp)

*200 samples, 20 bounces, and a 960x540 image taking around 30 seconds on integrated AMD Ryzen 7 4700U Graphics*

### Building

#### Windows

Install the [Vulkan SDK](https://www.lunarg.com/vulkan-sdk/) for glslc

```bash

git clone https://github.com/jsoulier/sdl3_ray_tracing --recurse-submodules

cd sdl3_ray_tracing

mkdir build

cd build

cmake ..

cmake --build . --parallel 8 --config Release

cd bin

./sdl3_ray_tracing.exe

```

#### Linux

```bash

sudo apt install glslc

```

```bash

git clone https://github.com/jsoulier/sdl3_ray_tracing --recurse-submodules

cd sdl3_ray_tracing

mkdir build

cd build

cmake .. -DCMAKE_BUILD_TYPE=Release

cmake --build . --parallel 8

cd bin

./sdl3_ray_tracing

```

### Bugs

Drivers may throw `VK_ERROR_DEVICE_LOST`.

To fix, you can try either of the following:

1. Lower the number of samples and bounces (see [config.h](src/config.h))

2. (Windows only) Set `TdrDelay` in the Windows Registry (see [here](https://learn.microsoft.com/en-us/windows-hardware/drivers/display/tdr-registry-keys))