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Camera inertia : CPT inertia vector?
Anyone had any luck with this Expresso node (core particle tools, inertia vector)? I’m doing roller-coaster-ish camera movements, the camera is chasing an object, and I’d like to add som inertia to the camera as it ducks and dives and swerves around corners.
I tried this setup but it’s not doing what i want it to. Maybe i’ve misunderstood what this node actually does, I’ve never tried it before…
The null follows a spline. I’m sending the nulls position and rotation to the Inertia nodes evaluation, hoping that this will cause som lag in the result, which is sent to the camera. But the result seems to be the same as the input…
Maybe there’s another way to do this?
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5 Replies
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No results with inertia vector yet but a couple thoughts occur
-Dynamics is what you are after, can you use Dynamics (soft spring or something), Mocca (I’m thinking the dinosaur tail tutorial here), or a dynamic spline tag with Hair (probably a pain)
-how about faking it? copy the spline that the target object is likely following, paste that and tweek it to fake inertia then attach the camera to that.
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You must have the -same- object before and after the inertia node.
So in your case, have the camera before and after the CPT node. Note the order in xpresso manager list,
So , the first camera node must be above the inertianode and the second camera node.You can have your “driving cube” connected to the firts camera node, if you wish.
You will however get in trouble regarding inertia rotation, since you’ll have to calculate the least new angle not to
have it flip. In COFFEE there is the MinimizeAngle function you can use in a COFFEE node.Cheers
Lennart -
The easiest way of resolving the rotation, is to use a Target for the Camera and use a Position inertia of the Target.
Cheers
Lennart -
Nice one, thanks Lennart for the tips, it works nice now. You’ll be seeing the results on Tv3 soon ;). One question tho: The lag parameter only works if set to a value at near 0.95. Anything below 0.5 gives no effect and anything above 1 causes the object to shoot away like a missile.
The name of the parameter “lag” suggests that the higher the value the stronger the inertia but apparently not.. am I missing something? -
Hey I was hoping you could point me in the direction or give me some pointers for setting up this effect?
I too have a target camera and want the camera to have some lag / inertia as though the camera operator is trying to keep up with the object, rather than being locked onto it solidly,
Any help you might give would be just awesome!
Thanks
Nathan
On Point Cloud Nine
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