dyn4j Forum

I'm toying with the idea of disabling this forum and moving discussion to GitHub issues in an effort to minimize communication paths that I monitor. Some thoughts, in no particular order: ⋅ Most of the sample programs that have been posted I've put into the dyn4j-samples project on GitHub....

This change has been included in the 3.3.0 version of dyn4j.

Thanks,
William

This was changed in the 3.3.0 version so that sensed contacts work exactly like normal contacts. See the release notes for more information on the change and it's implications.

Thanks,
William

The performance improvements tested here were included in the 3.3.0 release.

Thanks,
William

This should be fixed in the 3.3.0 version.

Thanks,
William

Probably too late, but I updated the SimplePlatformer.java sample program to help illustrate how you might achieve this. Keep in mind that it's just a sample and you'd probably have something more structured.

William

Looking at this deeper, here is what is happening: Imagine two bodies, A and B. A is a ball falling and B is a floor. t1 and t2 represent 2 timesteps, one after another. ⋅ t1: A and B velocities are integrated ⋅ t1: Collision resolution (none in this step) ⋅ t1: A and B...

I understand the cause, but I'm looking for a reproduction case so I can test my fix and add a JUnit test for it. If you happen to see this again in debug mode, see if you can .toString() the shapes and transforms. I still haven't been able to produce this problem myself. Either way, the GJK code sh...

Thanks for finding this. Do you have a test case that I could use to reproduce?

I just need the shapes and their transforms to setup a test.

William

Any more info on this? Still curious if there's a problem with GJK or if you encountered the problem with SAT (just later)?

William