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# Intersection
Intersection tests determine whether two geometric shapes overlap in space. These tests are used throughout physics and rendering to answer questions like whether a ray hit a surface or whether two colliders are touching. Different shape pairs (sphere-sphere, box-triangle, capsule-mesh) require different algorithms with varying cost and precision tradeoffs.
Visit the following resources to learn more:
- [@article@Intersection Tests for Games](https://www.gamedeveloper.com/game-platforms/simple-intersection-tests-for-games)
- [@article@Intersection Geometry](https://www.petercollingridge.co.uk/tutorials/computational-geometry/line-line-intersections/)