I have the world point positions of two objects, and would like to test if there is an intersection between the two objects from this information.
What methods can I use to test this, especially at the boundaries.
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Do you need exact triangle - triangle intersection test that is do you need to know exactly the points of intersection of each object? If you just need a simple yes / no they have intersected then you could get away with creating an AABB ( https://en.wikipedia.org/wiki/Bounding_volume ) that encompasses each object and do a AABB -> AABB ( good info here https://studiofreya.com/3d-math-and-physics/simple-aabb-vs-aabb-collision-detection/ ) intersection test? even if you need a more complex collision check Triangle -> Triangle it is always a good idea to do a simple collision check first to make sure its worth doing the complex Triangle -> Triangle intersection tests. Look here ( http://www.realtimerendering.com/intersections.html ) for all the normal object -> object intersection tests you could possibly need