CENG 795 Advanced Ray Tracing

For this assignment, I have could only come up with an MSAA routine that uses box filter. Also, at the current scope, the ray tracer is embarrassingly parallel. Therefore, I have used OpenMP to parallelize it. A few caveats came up there such as: #pragma omp parallel for private(k) schedule(dynamic) for (j = 0; j < static_cast<int>(cameras[i].image_resolution.x * samples_sqrt); j++) { for (k = 0; k < static_cast<int>(cameras[i].image_resolution.y * samples_sqrt); k++) { In the code example above, enabling dynamic scheduling had a considerable impact on the performance and CPU utilization. Also, by declaring `private (k)`, I assigned the scanline over the y-axis.  The `samples_sqrt` is simply the square root of the samples, that was required by MSAA. Even though standard library of C++ provides uniform random distribution with `uniform_real_distribution` and a `default_random_engine`, it might be interesting to check whether the unifor...

For the first assignment, I was building the core features of the ray tracer. This expected to have the required primitives, such as rays, camera model, and the image plane. The external libraries used were: GLM, where vector operations were needed. I used vec3 as a container. Besides, functions such as normalize and distance were in use as well. Although it might seem trivial, I had a tough time parsing the scene file, which is in XML format. There, the library called tinyxml2 came to the rescue. Although I intended to get PNG outputs with LodePNG, currently I only settled for a .ppm output. Later on, full SDL integration would display the images in a window on the fly. Cornell Box v0.1 My first output had three major flaws: 1) The reflection on Phong material is wrong. Later, the vector direction was fixed. 2) The intensity of the light was somewhat arbitrary, as I failed to clamp the color values. 3) The mirror reflection is missing. Cornell Box v0.2 This versi...