A simple ray tracer program written in C++. Rays are sent from the camera and are bounced/absorbed by objects until they hit a light source. I used Peter Shirley's Ray Tracing in One Weekend as a base for this project.

Since the ray tracing is run on the CPU, I used some multithreading techniques to speed up the program.

The first technique splits the image into a number of equal sized chunks and then has one thread assigned to calculate each chunk. The disadvantage with this method is that one chunk might be finished much earlier than the rest, giving that thread nothing else to do.

The second method uses thread pools to dynamically assign a thread to a row of pixels. As soon as a thread is finished with it's row it is then assigned the next available row until the image is complete. This method makes sure that each thread is constantly working but does have a higher performance overhead.

The first image uses the background as a light source. The second image is in an enclosed space, using two illuminating shapes as light sources. Since this causes most view rays to reach the maximum bounce limit, it takes much longer to render the second image.

Implementation here on GitHub

A particle-based rain simulation made for my final year project at university. The raindrops are rendered as billboards which always face the camera. The rain is rendered within a cylinder which surrounds the camera. As a raindrop hits the bottom of the cylinder it is recycled and transported back to the top of the cylinder.

Unfortunately, all of the rain calculations are done on the cpu. Using a compute shader would yield a much more efficient program which would be able to handle many more raindrops.

Implementation here on GitHub

A program based on finding a path through a maze and comparing two different algorithms to do so: A star pathfinding and Genetic Algorithm.

Implementation here on GitHub

A university game jam entered by myself and a few other friends. We created a platformer from scratch written in C++ using SDL as the graphics api. I mainly assisted in sprite drawings and assisting with collision detection code.

A simple program written in C++ to get used to using a compute shader. Here it is used to calculate the movement of thousands of particles.

Implementation here on GitHub