[Sidefx-houdini-list] Glue

pingo van der brinkloev houdinilist at comxnet.dk
Tue Mar 25 12:58:20 EDT 2008


That is beautiful. Thanks Sean!
I was confused about the docs: "A value of -1 will prevent the bond  
from ever breaking. A value of 0 will cause the bond to break with the  
first external force."
... didn't make sense to me turning it up.

Thanks!

... there's really no other package that has this feature...  
unbelievable.

On 25/03/2008, at 17.32, Sean Lewkiw wrote:

> You should try setting it higher... like 100 to 5000 or so.  This  
> means
> that more force is required to break the bonds, so it won't all  
> break at
> once.  Then to tweak, change the glue impulse half life, (or whatever
> it's called) to be larger, meaning that the accumulated force decays
> over a longer period of time, meaning the accumulated force builds up
> more quickly.  You should then find that the impacts build up and  
> parts
> break off as it rolls.
>
> Sean
>
> pingo van der brinkloev wrote:
>> Hey list.
>>
>> About RBD Glue:
>> I'm looking at the Breaking Rock example file in the help docs.
>> A rock hits some geometry and breaks apart. all works nicely and I
>> understand the workflow. I can also recreate it with my own geometry.
>>
>> But the entire object breaks apart immediately on impact. I would  
>> like
>> the breakup to be slow... like it travels through the rock breaking
>> one piece off after the other... I'm messing around with the internal
>> glue strenght. It seems that I can only turn it on or off (going from
>> 0 to -0.001)
>>
>> Is this effect hard to achieve? could someone point me in the right
>> direction?
>>
>> - Sorry if this question doesn't belong on this list, but I guess  
>> part
>> of being a newbie, is also finding out where to ask questions. So if
>> this is RTFM, please tell me where to post instead:-)
>>
>> cheers!
>>
>> pingo
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>
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