Windows version is half the speed then Mac version in terms of collision for me

[rdb]

Hi there!

DirectX won’t run collisions any faster, I don’t think that that will make your collisions run faster. However, if you want to try it, make sure to add “pandadx9” to the plugins list in your setup.py and also make sure to have a line saying load-display pandadx9 set in Config.prc.

As an alternative to subdivideCollisions, you could check out this thread, which is a more sophisticated yet still very easy way to optimize the collisions of a scene using an octree structure:

Magical collision scene optimizer

Do you occasionally struggle with slow performance of collision detection routines? Do you sometimes wish there were a magical function you could call that would just… suddenly make everything fast, with no extra work needed? Well, no longer! I have written a function that will optimize any node graph containing “into” collision nodes in such a way that collision detection will become orders of magnitude more efficient. As an extra feature, it can also convert visible geometry into collision…

This function has a flag to preserve the names of the resulting structure, which should fix the issue you were running into with subdivideCollisions (assuming that was indeed the cause).