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RBD Glue woes
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So, the internal glue setting is not being friendly to me with this
fractured object I have in dops.
Expressions and keying don't work for the value, and I'm running out
of ideas and crashing my head into a wall.
Half-life seems not effective as well.
I want this object to simply bounce once before it breaks. Instead,
it breaks instantly or not at all. How do I go about doing a geometry
switch? It doesn't bounce straight up and down, so I can't just alter
a creation frame and render the first 50 frames or whatever bouncing
pre break.
I feel like there is a very simple solution that I'm over looking.
Hopefully. It's also late and I can't think straight, so please
forgive me overlooking important details or small checkboxes.
The second bounce is going to involve less energy than the first one - so I
can understand why it wouldn't break on the second bounce.
Can you hand animate the first bounce and then set the active frame just
after the first bounce to have it break up on the second bounce?
On 28 May 2010 11:11, jacob fisher <jacobfshr at gmail.com> wrote:
So, the internal glue setting is not being friendly to me with this
fractured object I have in dops.
Expressions and keying don't work for the value, and I'm running out
of ideas and crashing my head into a wall.
Half-life seems not effective as well.
I want this object to simply bounce once before it breaks. Instead,
it breaks instantly or not at all. How do I go about doing a geometry
switch? It doesn't bounce straight up and down, so I can't just alter
a creation frame and render the first 50 frames or whatever bouncing
pre break.
I feel like there is a very simple solution that I'm over looking.
Hopefully. It's also late and I can't think straight, so please
forgive me overlooking important details or small checkboxes.
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--
=======================================
Andrew D Lyons | Digital Artist | http://www.tstex.com
=======================================
Using the rbd state dop to set your glue strength? Off the top of my
head If you have it at "Set Always" you can either manually keyframe it
(-1 never breaks) or use a dopfield expression or suchlike. Depending on
the mass of your object, you may need a very high glue strength in any
case. From what I remember you can look at the forces and velocity of
your object to determine how high the glue strength should be. When the
force on the object is higher than the glue strength, it breaks.
Off the top of my head mind... take that with a pinch of salt ;-)
Cheers
L
jacob fisher wrote:
So, the internal glue setting is not being friendly to me with this
fractured object I have in dops.
Expressions and keying don't work for the value, and I'm running out
of ideas and crashing my head into a wall.
Half-life seems not effective as well.
I want this object to simply bounce once before it breaks. Instead,
it breaks instantly or not at all. How do I go about doing a geometry
switch? It doesn't bounce straight up and down, so I can't just alter
a creation frame and render the first 50 frames or whatever bouncing
pre break.
I feel like there is a very simple solution that I'm over looking.
Hopefully. It's also late and I can't think straight, so please
forgive me overlooking important details or small checkboxes.
_______________________________________________
Sidefx-houdini-list mailing list
Sidefx-houdini-list at sidefx.com
https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list