particle angvel

[Benyee]

How to get particle angvel and get rid of sudden change of fly direction?Thanks.

[Macha]

Here is an idea:

Get your velocity and acceleration vector. Cross v with acc+v. So, now you have two vectors. Then cross that with v and divide by the square of the magnitude of your previous vector.

If my thinking went well you should have the angular velocity. If not it's nonsense, but close.

edit: Isn't there a default angvel somewhere?

Edited March 2, 2012 by Macha

[hopbin9]

How do you get the previous vector?

[Macha]

How do you get the previous vector?

That's why I said v+acc

[Benyee]

Here is an idea:

Get your velocity and acceleration vector. Cross v with acc+v. So, now you have two vectors. Then cross that with v and divide by the square of the magnitude of your previous vector.

If my thinking went well you should have the angular velocity. If not it's nonsense, but close.

edit: Isn't there a default angvel somewhere?

You mean like this?angvel_try.hip

[bloomendale]

Are you talking about angular velocity? afaik it points perpendicular to the plane of rotation for single point (determined by the right-hand rule). But you compute perpednicular part of linear velocity.

btw, i have all my vector markers point in the same direction under ogl 3.2 ,h12 (ogl 2.1 goes fine). Does anybody experience the same?