cgringmuth / raytracer Goto Github PK

/home/travis/build/choffmann/raytracer/src/container.h:18:8: error: forward declaration of ‘const struct Mat3d’
 struct Mat3d;

This is not an error on my local machine: gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3) / g++ (Ubuntu 7.2.0-8ubuntu3) 7.2.0

Travis: g++ (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4

Currently the rendering is very slow because I have implemented some kind of brute force raytracing which calculates intersections with all primitives with all rays. This is very time consuming!

My idea is to use BHVs to partition the scene spatially. This can be used to fast test for which primitives I have really calc intersection.

I want automatic building/testing on github.

I figured out that some faces are just black which should not happen. After some investigation I probably found the bug. Some face normals are of [0 0 0] and after normalization [-nan, -nan, -nan]. This cases the problem.

Currently the whole scene is hard coded into the code. Changing the scene requires recompilation and running. This is a mess and I want to change that to load the whole scene from a file.

After some thoughts (~ 5 min.) I figured a YAML description would good to describe a scene. So lets implement this.