Physics development status and next milestones - May 2024

[halley]

Intersection between plane and collider

Using physics, you could create a plane object, set its mesh collider as a trigger and use the OnTriggerStay function to detect when another collider intersects. To do it mathematically, it’s a bit more difficult because the method isn’t the same for each collider. You would most likely want to start with a Plane object in each case. For a mesh or a cube, you could use the plane’s GetSide function on each of the mesh’s vertices. If there is at least one point on the positive side of the plane a…

Here’s another example. I want to see if an existing Collider intersects a given Camera’s Frustum. I can get the Camera’s frustum planes. But now calculating if any part of the Collider is inside the Frustum is like pulling teeth with a toolbox full of un-polymorphic kludge. Asking for Renderer.isVisible is not suitable for me because I’m checking a candidate destination if it’s in view or not, there is no Renderer.