Collision check between 2 dynamic objects

I have 2 dynamic objects, one is the camera pivot and other one is a mesh.

When the mesh is not moving, camera collides with it just fine but as soon as the mesh starts to move, the collision check start to fail depending on the rotation the collusion happens.

mesh -> <- camera (if they collide while moving like this it fails)
camera -> -> mesh (while like this one, it' works ok)

I'm using ellipsoid to polygon collisions. How can I fix this issue, do I need a third party library like nuclear glory collision?

Collisions have always been a git - which is why some people use EntityDistance under certain circumstances.

I never use ellipsoid collisions - however, make sure you have set collision radiuses.

Thanks, the radius of the source object is already set...any other suggestions?

Unfortunately, the B3D collision doesn't work if both entities are moving.
You could surround the camera with a cube and check collision with MeshesIntersect, but that would only take care of the collision detection, the collision response woul be up to you.

There is a native dynamic collision library in the code archives by simonh. It may be of use here :

http://www.blitzbasic.com/codearcs/codearcs.php?code=898

Thanks boyz, what if I buy nuclear glory collision, would that be a solution to all my collision sided problems?

Not sure of that, but there are some further options:

Not sure if you already do this: use the same EntityType for source and target n the Collisions Declaration. And as somebody said, if the collision is sphere vs sphere then EntityDistance is a much faster way to do a collision check.

Finally, if you want dynamic collision, then you may add an UpdateWorld(0) after moving object A, and then call the original updateworld(n) after moving object B.

I had some trouble with collisions myself recently; I had to use Collisions() both ways for it to work, so something like:

Collisions Entity_Col,Camera_Col,1,2
Collisions Camera_Col,Entity_Col,1,2

After that it worked. O_o

If I use the same EntityType for both source and the target they wouldn't collide each other, but I have to try it. It's not sphere to sphere but sphere to poly collision and while EntityDistance is good for collecting stuff for a platformer game, it won't work in my situation because I want my object to collide and stop on a moving mesh.



Already tried that, not working sadly :(

Move one mesh, updateworld, move the second mesh, update world. That will work fine, because your only moving one mesh at a time.

Be sure to disable any unneeded collisions for the first updateworld, as it will increase your loop time.

What Ross said. And you may have to use updateword(0) for additional updateworlds.

That works great thanks!