Simple-ray-traced-render

Ray-traced render with basic functionality. It can render planes and spheres, supports color and outputs PNGs!

Prerequisites:

• libpng
• png++

Running:

git clone https://github.com/Gibitop/Simple-ray-traced-render.git
cd Simple-ray-traced-render
./run.sh

After render finishes, you should have picture similar to this:

Customization:

All customization happens in src/main.cpp file and requires recompilation for changes to take effect.

Parameters:

• filename - name of output file
• w - width of output image
• h - height of output image
• fov - camera's field of view
• imageGamma - gamma correction
• sensitivity - brightness multiplier
• bounces - how many bounces light is able to do
• spp - how many rays is calculated per pixel (higher values reduce noise)
• sampleVariation - ray direction displacement
• farClipping - defines how far rays can go (optimization)
• nearClipping - defines how close collision can happen (optimization)
• specularClipping - defines minimal visible brightness value (optimization)

Materials:

• emission - light emission (RGB value through Vec3)
• specular - light reflection (RGB value through Vec3)
• roughness - self-explanatory

Objects:

• Plane: defined by point and a normal vector (or 3 points) and a material
• Sphere: defined by center point, radius (float) and a material
• Disk: defined by center point, radius (float) and a material

Adding objects:

To add a new type of object, make a new class, derived from Renderable, and implement intersect and getNormal methods

License:

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details

Acknowledgments:

• use -fopenmp compile flag to use all threads of your CPU
• Apparently, mingw doesn't support strerror_r, so I had to mute it