4 ms·
Here's an article on a voxel raytracer focused on realtime operation: https://directtovideo.wordpress.com/2013/05/08/real-time-ray-tracing-part-2/ https://direc
by wtracy 12y ago
Here's an article on a voxel raytracer focused on realtime operation:
https://directtovideo.wordpress.com/2013/05/08/real-time-ray-tracing-part-2/ https://directtovideo.wordpress.com/2013/05/08/real-time-ray...
And here's a video of the raytracer discussed in the above link:
https://www.youtube.com/watch?v=i8hSZGTXTx8 https://www.youtube.com/watch?v=i8hSZGTXTx8
- rndn 12y agoI'm not sure how well this renderer handles arbitrary scenes through. Pieces of broken glass are very suitable for GPU raytracing, because rendering them is not a "branchy" task since there is no scattering, only definite reflection/refraction. The reflections also make it look like there were a lot more triangles. With Monte Carlo sampling you need 4x samples for .5x error, which means that a lot of samples are needed for scattered indirect illumination in a typical scene (I think in the order of 100 to 1000). In VCT you only need 7-13 samples but a lot of preprocessing.
- wtracy 12y agoThe author mentions that he chose reflective materials for exactly that reason. Realtime renderers still struggle with things like Monte Carlo.