Since this was coursework, I can’t make the project code public. Please reach out privately if interested!
About#
For Introduction to Computer Graphics, I worked on a shader viewer implementing various materials and post processing effects.
Features#
Material Fragment Shaders#
- Blinn-Phong Reflections Using the camera as a light source, I implemented the highlights of Blinn-Phong reflections on top of Lambertian reflections and ambient lighting.
- Matcap Materials Matcap materials map normals to locations in a 2D image that “bakes” a material, allowing for things like reflections to be quickly faked.
Post-Process Fragment Shaders#
Using a post processing pass, I implemented the following post-process effects:
- Gaussian Blur by sampling neighboring pixels multiplied by a weight corresponding to the blur radius and strength. I check for the edge of the frame to prevent darkening at the borders.
- Sobel Filter (Edge Detection) Sobel samples neighboring pixels with a kernel matrix to detect sudden changes in color.
- Underwater Filter By applying a blue tint and sampling pixels using perturbed noise varied by time, I emulated the effects warping effect of being underwater. I performed a second sample to create a ghosting effect, and also applied a vignette effect to darken the borders.