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MultiJoints issues

Posted: Thu Jul 15, 2010 8:22 am
by tsn
I'm currently working on some tests for a more complex rbd simulation with extensive use of MultiJoints. Unfortunately, the new new version (released on July 14) is a huge step backwards:

- Simulation times are 1.5x - 8x longer compared to RF5.0.0.
- With simple scenes, CPU load is approx. 50%, with more complex scenes it'S just around 12%. In RF5.0.0 I had constant loads of 80-90%.
- Estimating forces is still nothing more than a guess and there's absolutely no indicator for finding a working initial value.
- The forces, displayed in the statistics panel, have obviously no relation to the setting under @ Max force, because there the used forces are around 1 - 10% of the values from "Statistics".
- There seems to be a new way how forces are calculated, because the scenes from the previous version now yield completely different results.
- Some joined objects show heavy intersections (but it's not possible to find out why).
- With Quality = High, simulations aren't possible at all, because simulations times are incredibly long.

In the current state, MultiJoints are actually not usable and that's very disappointing. I hope that there will be some major improvements soon.

Best,
Thomas

Version 5.0.1 on OS X 10.6

Re: MultiJoints issues

Posted: Thu Jul 15, 2010 10:07 am
by agus
Thanks a lot for your feedback. We will work hard on it.

Re: MultiJoints issues

Posted: Fri Dec 03, 2010 3:14 pm
by nuria
RF 5.0.3 is now out and it has substantial improvements in all these issues.
Just the one concerning the forces displayed at the statistics panel, remains. Unfortunately, though internal multi-joint force values are correct and respond appropriately to user's input parameters, they are not showed properly. This will be fixed for next version.