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Dark Physics & Dark A.I. & Dark Dynamix / [Darkphysix] Bridge demo is very "jittery".

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peterJBE
11
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Joined: 11th Mar 2008
Location: Belgium
Posted: 14th Jan 2011 17:51
The bridge moves restless up and down.
The small boxes that make up the bridge tremble constantly.
I think this was not the case with earlier versions of Dark Physics en Dbpro.
Does someone knows a solution or work around?
peterJBE
11
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Joined: 11th Mar 2008
Location: Belgium
Posted: 22nd Jan 2011 14:45
Can someone test on their system if the demos behave like I described above.

I´m talking about:
projects\dark Physics\demos\joints\bridge.dbpro
projects\dark Physics\demos\rigid body\bridge.dbpro

I have dbpro 1.075 and dark Physics 1.05
HowDo
16
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Joined: 28th Nov 2002
Location: United Kingdom
Posted: 22nd Jan 2011 16:23
well after smacking a lot of damping into the code final saw what the problem is, the planks are connected to the rope from the middle of the plank edge, so the only solution I can see is to make a small box and connect it to the bottom of the plank with this small box having the rope pass through it.

on the joints bridge I add this just after line 69
up to you if you think this is better.

heres my sample joint demo this might help understand how some of the code works.


Dark Physics makes any hot drink go cold.
peterJBE
11
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Joined: 11th Mar 2008
Location: Belgium
Posted: 22nd Jan 2011 20:06
@Howdo: Thank you very much for looking for a solution.
I am happy with the fact that it is possible to find a solution for this kind of problem in Dark Physics and that it is still possible to build a bridge that "behaves" normal.

I will study your sample joint code.

Do you have an idea(or someone else) why it is neccesary to adapt some of the demos? Is there a systematic difference between the older and the newer versions of Dark Physics? Some defaults or something like that.
HowDo
16
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Joined: 28th Nov 2002
Location: United Kingdom
Posted: 23rd Jan 2011 14:57
most of the problems we have with physX, was there were not enough users back in 2008 that knew how to use it, so testing was left to the few that could use it, but not all the functions were use by the few, so some got fixed other got missed.

for me if I make a model in AC3D, I have to save it as a 3ds as X file do not always work right from that package.

one day pandora's box on PhysX may be open again, if it is have your borken sample code at the ready.

Also if you put Blue in the search box at the bottom and limit it to this forum, you will find a thread on loading a physX help file like DBP.

Dark Physics makes any hot drink go cold.
peterJBE
11
Years of Service
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Joined: 11th Mar 2008
Location: Belgium
Posted: 23rd Jan 2011 17:47
@Howdo.
Thank you. I could install the Physx help index.
HowDo
16
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Joined: 28th Nov 2002
Location: United Kingdom
Posted: 23rd Jan 2011 21:52
heres a copy of my main page of the help files.

put this file (Newmain.htm) in the help folder then make a copy of it, then delete "main.htm" and the rename "copy of newmain.htm" to "main.htm"

Dark Physics makes any hot drink go cold.

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peterJBE
11
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Joined: 11th Mar 2008
Location: Belgium
Posted: 26th Jan 2011 12:35
@howdo

All is working well now.
Thank you.
sindore
14
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Joined: 2nd Jul 2004
Location: Bedfordshire, UK
Posted: 31st Jan 2011 17:07 Edited at: 31st Jan 2011 17:09
this is what I came up with, and there is no jitter.



Edit

and I've got to hay hi to HowDo, its bin to long

The world surcome to the power of an evil god, a new champion arise The dark Lord Sindore
HowDo
16
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Joined: 28th Nov 2002
Location: United Kingdom
Posted: 1st Feb 2011 15:51
hi back sindore

Dark Physics makes any hot drink go cold.

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