Changing from 1.53 to 2.08

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