5 ms·

UE4 demonstrated it as well: https://www.youtube.com/watch?v=VHbHOQ1NRuw https://www.youtube.com/watch?v=VHbHOQ1NRuw And so did Unity: https://www.youtube.co

• bhouston 11y ago
  Both of the above demos are done with the commercial product Enlighten. Would be great to have an open source alternative to it that people can customize. :)
  • CyberDildonics 11y ago
    This isn't that though. The geometry is static and the interaction between points is precomputed. The cone tracing into voxels approach ends up being much more reasonable since: 1. The color is quantified into evenly spaced segments (ie a 3 dimensional image) 2. Because it is a 3 dimensional image the GPU's filtering hardware can do efficient lookups over a volume using mip mapping techniques. The approach was originally described in a siggraph paper and there have been a lot of variations (which is usually another sign that something works well). Someone could create an implementation on their own, it isn't much of a stretch. You just rasterize into a voxel image then do a few cone traces at every pixel you shade, guided by the BDRF (a good one to look at would be ggx).
  • VikingCoder 11y ago
    Is anyone willing to share roughly what Enlighten costs?