Forums Technical Discussion Expression problem vector/angle

Expression problem vector/angle

   3677   8   2
User Avatar
mickyblue
Member
217 posts
Joined: Sept. 2009
Offline
 
hi

need a the angle between to bones.

tried this…

vangle(vrorigin(“”,“../chain_bone1),vrorigin(”“,”../chain_bone2))


thanks
 Report
User Avatar
tamte
Member
8595 posts
Joined: July 2007
Online
 
this is the expression you need
180-vangle(vector3(0,0,1),vtorigin(“../chain_bone2”, “../chain_bone1”))

make sure chain_bone2 is a child of chain_bone1 and not the other way around
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
mickyblue
Member
217 posts
Joined: Sept. 2009
Offline
 
Thanks!
 Report
User Avatar
edward
Member
7734 posts
Joined: July 2005
Offline
 
There's also boneangle() btw.
 Report
User Avatar
mickyblue
Member
217 posts
Joined: Sept. 2009
Offline
 
Thanks!… Good to know! Its also good to know the general way.
 Report
User Avatar
mickyblue
Member
217 posts
Joined: Sept. 2009
Offline
 
Any chance to define just one axis with the boneangle expression?

Thanks
 Report
User Avatar
edward
Member
7734 posts
Joined: July 2005
Offline
 
Sorry, I don't understand. The boneangle() only returns a single angle, around the axis perpendicular to the two bone directions.
 Report
User Avatar
mickyblue
Member
217 posts
Joined: Sept. 2009
Offline
 
I want to isolate my focus on just one axis… Lets say i have an shoulder ball joint situation where i want to look at the axis seperatly. How would i go for that…

Seem like a case where i need to use the vangle and vector expressions…!?
 Report
User Avatar
edward
Member
7734 posts
Joined: July 2005
Offline
 
Then yes. The boneangle() expression is just convenient for the common case.
 Report
  • Quick Links