Implementing scene queries using immediate mode #146
-
|
When using immediate mode, PxBroadPhase can accelerate body pair generation, but its API does not provide AABB tree traversal. Is there a structure that can be used to accelerate queries against many geometries when using immediate mode? A dynamic AABB tree that is agnostic of leaf type, similar to PxBroadPhase, would be sufficient. When using PxScene, one can choose a data structure using PxPruningStructureType, but I can’t find a public API to use those data structures directly. |
Beta Was this translation helpful? Give feedback.
Replies: 1 comment
-
|
When using immediate mode, PxBroadPhase can accelerate body pair generation, but its API does not provide AABB tree traversal. The PxBroadPhase API does not provide AABB tree traversal because the various broadphase implementations of this API do not necessarily use an AABB tree. Related documentation: https://nvidia-omniverse.github.io/PhysX/physx/5.1.3/docs/SceneQueries.html#rationale-for-decoupled-broadphases-scene-query-system Is there a structure that can be used to accelerate queries against many geometries when using immediate mode? A dynamic AABB tree that is agnostic of leaf type, similar to PxBroadPhase, would be sufficient. You can use either a standalone PxBVH (simple option) or Gu::QuerySystem (more complex option). Related documentation: https://nvidia-omniverse.github.io/PhysX/physx/5.1.3/docs/SceneQueries.html#standalone-pxbvh https://nvidia-omniverse.github.io/PhysX/physx/5.1.3/docs/SceneQueries.html#low-level-query-system There are various snippets mentioned in the above links that should get you started. |
Beta Was this translation helpful? Give feedback.
When using immediate mode, PxBroadPhase can accelerate body pair generation, but its API does not provide AABB tree traversal.
The PxBroadPhase API does not provide AABB tree traversal because the various broadphase implementations of this API do not necessarily use an AABB tree. Related documentation: https://nvidia-omniverse.github.io/PhysX/physx/5.1.3/docs/SceneQueries.html#rationale-for-decoupled-broadphases-scene-query-system
Is there a structure that can be used to accelerate queries against many geometries when using immediate mode? A dynamic AABB tree that is agnostic of leaf type, similar to PxBroadPhase, would be sufficient.
You can use either a standalone PxBVH (simple option) …