Hi,
I have mixed of Glue and Spring constraint in bullet sim.
and I want to control Glue strength dynamically instead of delete constraint primitives. because if I deleted the constraint primiteve, both Glue&Spring is going away.
I want to keep the Spring but not for the Glue..
any idea?
change the constraint strength dynamically?
40723 2 1- ddingddong
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- tamte
- Member
- 8833 posts
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so in your constraint solver
to delete just glue constraints put
@constraint_name=Glue
into group field of blast node
to modify strength of the constraint simply add/edit float primitive attribute named strength
to edit strength only on glue constraints combine previous 2 metohds
set that group for node which is modifying strength attribute
alternatively you can do it as a condition in wrangle code, without specifying Group field, mostly if you want to include else branch or multiple conditions
if (s@constraint_name = “Glue”)
{
f@strength = fit($F, 10, 20, 100, 0);
//or do something else with glue constraints
//like
//removeprim(0, @primnum);
}
…
to delete just glue constraints put
@constraint_name=Glue
into group field of blast node
to modify strength of the constraint simply add/edit float primitive attribute named strength
to edit strength only on glue constraints combine previous 2 metohds
set that group for node which is modifying strength attribute
alternatively you can do it as a condition in wrangle code, without specifying Group field, mostly if you want to include else branch or multiple conditions
if (s@constraint_name = “Glue”)
{
f@strength = fit($F, 10, 20, 100, 0);
//or do something else with glue constraints
//like
//removeprim(0, @primnum);
}
…
Tomas Slancik
FX Supervisor
Method Studios, NY
FX Supervisor
Method Studios, NY
- wlvl
- Member
- 23 posts
- Joined: July 2015
- Offline
Hi All!
I have a building with glue constraint strength mapped along the y axis (+ painted in some spots).
I'd like to change the constraint strength over time to choreograph the structure destruction/collapse. I am keyframing the points of my constraint strength ramp in SOP. How do I pass that info in DOP?
In the constraint network DOP there's the option Overwrite with SOP if time dependent. I don't want an overwrite since this option will restore also broken constraints freezing flying pieces in air.
I'd like to update the strength of “survived” cons.
I'm thinking about a att wrangle in a SOP solver, but im not sure how to set it up.
thanks very much for helping!!
simplified hip file attached
I have a building with glue constraint strength mapped along the y axis (+ painted in some spots).
I'd like to change the constraint strength over time to choreograph the structure destruction/collapse. I am keyframing the points of my constraint strength ramp in SOP. How do I pass that info in DOP?
In the constraint network DOP there's the option Overwrite with SOP if time dependent. I don't want an overwrite since this option will restore also broken constraints freezing flying pieces in air.
I'd like to update the strength of “survived” cons.
I'm thinking about a att wrangle in a SOP solver, but im not sure how to set it up.
thanks very much for helping!!
simplified hip file attached
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