bevy/crates/bevy_render/src/primitives
Sou1gh0st 206f4f7f5f
Add .contains_aabb for Frustum (#16022)
# Objective

- Fixes: #15663

## Solution

- Add an `is_forward_plane` method to `Aabb`, and a `contains_aabb`
method to `Frustum`.

## Test
- I have created a frustum with an offset along with three unit tests to
evaluate the `contains_aabb` algorithm.

## Explanation for the Test Cases
- To facilitate the code review, I will explain how the frustum is
created. Initially, we create a frustum without any offset and then
create a cuboid that is just contained within it.

<img width="714" alt="image"
src="https://github.com/user-attachments/assets/a9ac53a2-f8a3-4e09-b20b-4ee71b27a099">

- Secondly, we move the cuboid by 2 units along both the x-axis and the
y-axis to make it more general.


## Reference
- [Frustum
Culling](https://learnopengl.com/Guest-Articles/2021/Scene/Frustum-Culling#)
- [AABB Plane
intersection](https://gdbooks.gitbooks.io/3dcollisions/content/Chapter2/static_aabb_plane.html)

---------

Co-authored-by: IQuick 143 <IQuick143cz@gmail.com>
2024-12-01 21:30:01 +00:00
..
mod.rs Add .contains_aabb for Frustum (#16022) 2024-12-01 21:30:01 +00:00