C-3D is a 3D rendering engine using few libraries, meaning no OpenGL or Vulcan for easy rendering. I did this as a challenge and to allow me to gain a better undersanding of the rendering pipeline.
C-3D has the following features:
- Movable camera
- Entire 2D -> 3D rendering pipeline
- Triangle clipping, triangle culling, and other triangle drawing optimisations
- Triangle fill algorithm
- Scanline algorithm facilitating a solid fill
- Scanline algorithm adapted for texturing triangles
- .obj reading from file
- Reading algorithm without texture data
- Reading algorithm with texture data
- U,V mapping systen ensuring textures are properly mapped to meshes
C-3D can be run by doing the follwing:
- Install SDL2, SDL2_image, and math by running
sudo apt-get install SDL2 SDL2_image math - Move obj/png file and texture into appropriate folders and update the filenames in main.c
- cd into the root directory of the cloned repository and run
gcc src/*.c -o build/main -lSDL2 -lm -lSDL2_image - run
./build/main
- cd into the root directory and run the command
chmod +x install_dependencies.shandchmod +x compile.sh - run
./install_dependencies.shto install the required libraries - put the .obj file and texture .png file in the res/ folder
- run
./compile.shto compile and run C-3D
As well as some standard libraries, C-3D uses the following 3rd party libraries:
- SDL2
- SDL_image
- Initial implementation of rendering engine
- Improved camera directional movement
- Added modifiable speed to camera movement
press up/down arrow keys! - Added render mode control to options
press left tab! - Improved camera look by adding mouse compatability
- Improved camera look by adding pitch
- Added dynamic .obj/.png file reading (no more hard coded filenames!)
- Added helper scripts for debian users
Depending on future demand, development on C-3D may continue with the following improvements in mind
- Bug fixes
Improved camera movement- Dynamic movement/rotation/scaling of meshes
Drawing settings as settings- Animations