I am trying to write a script that will set the mass of objects in the rb collection. When I use the getRigidObject() function it always returns undefined even though there are several objects, 82 to be exact. I tried running the example script in the documentation and the same thing happens. Does anyone else have this problem or know of a solution for it. I don’t know if it used to work, or if has just stopped working in max 9. Thanks.
-bnvm
What exactly are you trying to do? According to the maxscript reference you must supply the body index.
-Eric
Thanks I am aware of that, when I run rbcol.rigidBodyObject 1 it returns undefined even thought rbcol is a rb collection and It has 82 objects assigned to it. This is not the only thing not working, rbcol.rigidBodyTab is supposted to return an array of nodes but instead it throws an error message. Try this example straight from the docs and let me know if it works, It doesn’t work for me.
resetMaxFile #noprompt –reset the scene
t = Teapot() –create a teapot
select t –select the teapot
rctMakeRBCollection() –create a RigidBodyCollection with the Teapot
a = $RBCollection01.getRigidObject 1 –get the Teapot’s RigidBodyObject
b = a.rigidBodyInterface –get the Teapot’s RigidBodyInterface
b.elasticity –get the elasticity value
b.friction –get the friction value
b.unyielding –get the unyielding state
b.disableAllCollisions –get the collision state
b.useDisplayProxy –get the display proxy state
b.useDisplayProxy = true –set the display proxy state to true
-bnvm
It works as expected in Max 8, however I can confirm that it errors in Max 9. I have no idea what has changed. Maybe Bobo or AlpineMan (Chris Johnson) can speak up on this.
-Eric
Damn, I hope they fix that. I’m using that feature and it’s working fine in max8
/Andreas
Thats good to know, I just wanted to make sure that it wasn’t just me.
-bnvm
I found a way arround this property not working. To set the mass for an object in a reactor simulation you can use this command.
setUserProp $ “Mass” 20
Apparently reactor stores the mass, elasticity, friction, etc… as user props on the object.
-bnvm
Just now create simple box in Max9 and add it to rbc collection, select box, then use command
getUserProp $ “Mass”
and get undefined,
then I try use your command and get “ok” but there are no any changes in rigid body rollout.
Mass still 0.0
It does update the value, but not the UI. Try this code, it will change the value deselect the object and reselect it showing the new value:
sel = $
setUserProp sel "Mass" 20
deselect sel
select sel
or
sel = $
getUserProp sel "Mass"
setUserProp sel "Mass" 20
getUserProp sel "Mass"
Edit: Once added to the RBCollection, selected and opening the Reactor UI the items are added to the Nodes User Properties and can be found by executing:
getUserPropBuffer $
--
"Mass = 0.000000
Ellasticity = 0.300000
Friction = 0.300000
Unyielding = 0
Inactive = 0
Phantom = 0
Disable_Collisions = 0
Use_Display_Proxy = 0
Simulation_Geometry = 2
Proxy_Geometry = <None>
Display_Proxy = <None>
Shell_Radius = 0.050000
Allowed_Penetration = 0.000000
Quality_Type = 3
"
-Eric
Yes, it is works. Thanks PiXeL_MoNKeY.
hi there
its my bad luck that i knew about this thread too late
i have a question about the rigid body property dialog cause it seems that you can’t change
the properties without calling the “Rigid Body Property” dialog
i got the code to call it from the lisetener
macros.run “reactor” “rctOpenPropertyEditor”
but how to destroy it ?
and if i’m running a for loop to set certain properties in that dialog , how can i prevent it from
just keep flickering ?
thanks in advance