3 ms·
> After a few days of investigation, Sergey improved the layout of hair bounding boxes for BVH structure. What does this mean? A more in-depth explanation is co
by __s 10y ago
> After a few days of investigation, Sergey improved the layout of hair bounding boxes for BVH structure. What does this mean? A more in-depth explanation is coming soon.
Sounds more that they optimized their BVH implementation
- boulos 10y agoSorry if I wasn't clear. Using a time-dependent BVH (where instead of two vec3 for the corners you store four, one pair for t=0 and one for t=1) is an "optimization". Given the later sentence: > After that, he applied the same optimization to triangles (for actual character geometry) it suggested that the bug was just using a single bounding box that ignored the motion (which is correct, but slow).