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Author SHA1 Message Date
Camden Dixie O'Brien 506027c194 Tweak demo scene 2025-09-23 15:02:21 +01:00
Camden Dixie O'Brien 53198edaa4 Allow negative sky colour to be specified 2025-09-23 14:19:30 +01:00
Camden Dixie O'Brien a8c69c2386 Create multiple demo programs 2025-09-23 14:18:57 +01:00
Camden Dixie O'Brien 9db19eb2e9 Add area light material 2025-09-23 03:17:30 +01:00
Camden Dixie O'Brien 35c6d4a784 Allow -1 to be passed for auto focal length 2025-09-23 03:17:13 +01:00
Camden Dixie O'Brien a6b70503f7 Set absorbed colour in material scatter function 2025-09-23 00:14:15 +01:00
Camden Dixie O'Brien 209ec3430f Add camera aperture / depth-of-field 2025-09-23 00:09:47 +01:00
Camden Dixie O'Brien 4f6cbb008f Add PNGs to .gitignore 2025-09-23 00:09:38 +01:00
Camden Dixie O'Brien d3edbad772 Add rng_xy() 2025-09-23 00:09:38 +01:00
Camden Dixie O'Brien d90b72e047 Rename rng_disc() to rng_plusminus() 2025-09-23 00:09:27 +01:00
Camden Dixie O'Brien a79b414b37 Adjust camera to focus at target 2025-09-22 23:12:37 +01:00
Camden Dixie O'Brien 7e273a3e8d Move rendering functions to own module 2025-09-22 23:08:53 +01:00
Camden Dixie O'Brien 1ee0571178 Randomise scene 2025-09-22 22:01:13 +01:00
Camden Dixie O'Brien 4062285bb7 Increase MAX_ITER in camera 2025-09-22 22:00:27 +01:00
Camden Dixie O'Brien bbaec554d8 Create scene data structure 2025-09-22 20:36:14 +01:00
Camden Dixie O'Brien fe5055f161 Change sky colour 2025-09-22 20:17:28 +01:00
Camden Dixie O'Brien fb09a5553e Allow camera position and target position to vary 2025-09-22 20:16:41 +01:00
Camden Dixie O'Brien 6e8dd39d43 Remove focal_len parameter from camera (hard-code as 1.0) 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 22a8b3a009 Specify camera FOV instead of viewport height 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 157bf8d93e Add fuzz parameter to reflective material 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 524f8ad085 Make samples per pixel a camera parameter 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien a71aa553db Add dielectric material 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 4a18ad238e Add progress output 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien ed6ab77cc8 Tweak demo scene a little 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien c0d7f106ee Add reflective material 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien d7667fa266 Create material abstraction 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien aabfe7924d Gamma correct pixels before writing out 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 7552ec2fc9 Implement Lambertian diffuse scattering 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 89597c9b01 Implement Gaussian anti-aliasing 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 172956ae46 Parallelise rendering 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 219415aee6 Sample each pixel multiple times 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 6215927179 Implement diffuse scattering 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 2037b5681f Prevent potential divide by zero in vec3_unit() 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 77cb219749 Implement RNG module 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien d5474546ca Simplify hit detection logic 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 7400228c0c Move rendering logic into camera module 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien bf05f1df59 Handle hits on multiple objects 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 8482373b4c Add "ground" to demo scene 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien d08629a4df Add front/back face detection 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien d6f583c260 Move camera initialisation into seperate module 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien a345835703 Create obj module for scene objects 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 88dc098db2 Colour sphere based on normal 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 9048039be0 Implement simple intersection detection with sphere 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien 163874c175 Set up camera and bg in demo 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien e00c16f9df Create vec3 module 2025-09-22 19:49:13 +01:00
Camden Dixie O'Brien db37197a49 Add license (Komorebi) 2025-09-20 14:45:42 +01:00
Camden Dixie O'Brien 93a8f52549 Write simple CMake build config 2025-09-20 14:45:42 +01:00
Camden Dixie O'Brien 4eacecfdbf Add .gitignore for build directory and output images 2025-09-20 14:45:42 +01:00
Camden Dixie O'Brien a78c8914d5 Create initial demo writing an image 2025-09-20 14:45:42 +01:00
Camden Dixie O'Brien 04bdedd131 Write simple farbfeld-writing module 2025-09-20 13:31:22 +01:00
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# Batomorph
Batomorph is a simple ray tracer, written in C23 for POSIX systems.
![Demo rendering](demo.png)
To build with CMake (there are no dependencies):
```sh
cmake -B build
cmake --build build
```
You may want to adjust the `NTHREADS` definition in `src/render.c` to
match your system.
The demo programs (`build/demo` and `build/rand`) will write the
rendered image in sRGB
[Farbfeld](https://tools.suckless.org/farbfeld/) to `stdout`:
```sh
build/demo > out.ff # Produce Farbfeld file
build/demo | ff2png > out.png # Produce PNG file
build/demo | feh # View directly
```
(Note that `ff2png` and `feh` are third-party programs)
## License
Batomorph is Copyright © Camden Dixie O'Brien, and is available under
the Komorebi 2.0.0 license. See [LICENSE.md](LICENSE.md) for details.
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