Bug with intersectsMesh

Bugs
1

Hi everybody,

I think there is a bug in the intersectsMesh function.

Here’s a PG : https://playground.babylonjs.com/#C77SMH#93

I do not understand why the intersectsMesh function returns true in this case.

Can anybody help me ?

Thanks

2

Classic first-frame-world-matrix fun:

To avoid expensive computations, we assume the world matrix is correct, but you change the position and in the same frame check for intersection.

3

Thanks very much for the answer.

Would it be possible to add a boolean parameter in the intersectsMesh function to compute the 2 meshes before running the calculaion of the intersection ?

4

I don’t see a reason to do that. usually you wouldn’t encounter that. Render a single frame and you will see that it is false. this is just a first-frame issue (or better yet - a same-frame issue). if you check intersection in a onBeforeRender observer it will always calculate correctly.