Commit graph

4 commits

Author SHA1 Message Date
Natalie Vock
b1f6d3b6b7 radv/bvh, vulkan/bvh: Move AccelerationStructureInstance to vk_build_helpers
Remove duplications.

Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32797>
2025-02-18 13:00:52 +00:00
Natalie Vock
28ed283e81 vulkan/bvh: Add optional fine-grained instance node bounds calculation
This allows drivers to inject custom functions to calculate the bounds
of instance nodes. For example, this can be used to determine instance
bounds by transforming the AABBs of all child nodes at some level in the
BVH. When instance transforms contain rotations of close to 45°, this
can yield a tighter AABB than just taking the instance's top-level AABB
and rotating it.

Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32797>
2025-02-18 13:00:52 +00:00
Natalie Vock
40b0ad0f45 vulkan/bvh: Move leaf builder code to header
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32797>
2025-02-18 13:00:52 +00:00
Connor Abbott
f8b584d6a5 vulkan/runtime,radv: Add shared BVH building framework
This is mostly adapted from radv's BVH building. This defines a common
"IR" for BVH trees, two algorithms for constructing it, and a callback
that the driver implements for encoding. The framework takes care of
parallelizing the different passes, so the driver just has to split the
encoding process into "stages" and implement just one part for each
stage.

The runtime changes are:
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
The radv changes are;

Reviewed-by: Friedrich Vock <friedrich.vock@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31433>
2024-12-01 16:08:06 +00:00