I’ve noticed that for some (all?) objects in the “artwork” menu, when the box collider is chosen, the bounding box used for the collision mask is way outside the bounding box of the actual object depicted. Selecting the polygon collider remedies this, but in an earlier forum discussion (summer 2018) we established that the additional calculations needed for polygon can, as is to be expected, result in a performance hit. Also, the same discussion led to a request to make box the default instead of polygon (thank you for doing this!), but it defeats the purpose if box doesn’t work.
- the purple knight with collider polygon can get right up to the edge of the rectangle, but the blue knight with collider box stops some distance away. The gap is asymmetrical - on the other side, the blue knight can get much closer.
- the masks for Basic Shapes seem to work perfectly. Both triangles can move right up to the rectangle.
Here’s the demo project: