Astral

ray tracing in one weekend renderer

Sample Scene

1. cornell box

Feature List

• Faster Iterating Scene using Bounding Volume Hierarchy
• Constant Density Mediums Volume Rendering

Build From Source

Clone the project. https://github.com/hanyangl5/Astral.git

Generate project using cmake cmake . -B build -DCMAKE_BUILD_TYPE=Release -G <generator>

Compile and run.

Usage

To run the renderer, use the following command:

./renderer [options]

The available options are:

• -o, --output: Specify the output file name. Default is output.png.
• -w, --width: Specify the width of the output image. Default is 256.
• -h, --height: Specify the height of the output image. Default is 256.
• -s, --spp: Specify the number of samples per pixel. Default is 16.
• -t, --thread: Specify the number of threads to use. Default is the maximum available threads on your system.
• -i, --sample scene index: Specify the index of the scene to render. Available options are:
  • 1: Cornell box
  • 2: Cornell smoke
  • 3: Scene1

For example, to render the Cornell box scene with a width of 512, height of 512, and 32 samples per pixel, you can use the following command:

./renderer -w 512 -h 512 -spp 256 -s 32 -i 1 -o output.png

The rendered image will be saved as output.png in the current directory.

License

This program is licensed under the MIT License. See the LICENSE file for more details.