44 lines
1.5 KiB
Markdown
44 lines
1.5 KiB
Markdown
# tinyray
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A simple raytracer in exactly 450 lines of C-code.
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### Features
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* Sphere-Ray Intersection
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* Materials
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* Diffuse and Specular Lighting
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* Point, Directional, and Ambient Lights
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* Custom Floating-Point Vector Library
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* Output to image with stb_image
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* Gradient Background
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* Watermark
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### Building
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Find a compiler and build `tinyray.c`. Run the executable and it'll create an image called 'output.bmp' in that directory. Simple as that!
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Some examples:
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```
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# Building with gcc
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$ gcc tinyray.c -o "tinyray"
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# Building with cl
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> cl tinyray.c
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```
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tinyray uses [the excellent stb_image_write library](https://github.com/nothings/stb/blob/master/stb_image_write.h) for outputting a bitmap image.
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### License
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Public Domain - Do whatever you like!
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Credit would be very much appreciated though :)
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### Helpful Resources
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I created this toy raytracer to learn about basic raytracing (and for fun, of course), taking inspiration from the following resources:
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- [Gabriel Gambetta: Computer Graphics From Scratch](https://www.gabrielgambetta.com/computer-graphics-from-scratch/basic-ray-tracing.html)
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- [Scratch A Pixel: Minimal Ray Tracing](https://www.scratchapixel.com/lessons/3d-basic-rendering/minimal-ray-tracer-rendering-simple-shapes/ray-sphere-intersection)
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- [ssloy's tinyraytracer](https://github.com/ssloy/tinyraytracer)
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The first link is especially helpful in understanding how raytracing works from a mathematical perspective.
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**I created this for fun for the UoA ENGGEN 131 Art Challenge**
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