PJani
07-09-2009 16:49:26
Hy. Im thinking if it does make sence changing newton lib from 1.53 to 2.08b.
Im experiencing slowdowns with newton 1.53 when using more objects and vehicles(body vehicles).
What do you think?
kallaspriit
08-09-2009 13:19:40
NGD 2 is better in every way - faster, new features, many bugs fixed, even stabler and there is no more support for 1.53.
PJani
08-09-2009 14:50:45
Does 2.08 support body car, not the ray trace car?
kallaspriit
08-09-2009 20:51:23
The built-in car joint is not there any more but it is possible to build a vehicle using custom joints and there is a multibody vehicle implementation that I have not tried myself.
PJani
10-09-2009 01:02:40
I finaly replaced old Newton with new one, but i have no performance improvement(not even 1%), such is in newton demos.
I created stress test with stacked boxes. FPS falls below 10FPS in newton demos FPS stays at 60FPS with one thread enabled.
Any idea?
kallaspriit
10-09-2009 15:57:28
Are you using the exact solver? That one is pretty much the same as in 1.53 but if you don't need 100% precision, you can use the linear solver that is faster for tasks such as stacking.
PJani
10-09-2009 17:56:20
Hmm, i changed friction and solver model to adaptive the result is meybe 5% better.
I have dual core machine and i set thread number to 2 and i set single island threading to 1 for testing, but i have no speed boost. I don't know if even threading is working, because cpu usage is only on first core