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Auto-Orient to Camera creates unwanted Z orientation

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Oskari Gronroos
Auto-Orient to Camera creates unwanted Z orientation
on Sep 20, 2017 at 11:04:06 am

I have eight icons arranged in a circle, a Null object in the centre, and a camera that's parented to the Null. Each icon is set to be a 3D layer, and Auto-Oriented towards the camera. The camera is Auto-Oriented to Point of Interest, and parented to the Null, so that I can adjust the Z rotation of the Null to have the camera orbit the circle (producing the effect that the circle of icons is carouselling around).

Everything else is perfect, but the icons on the sides are somehow inheriting quite a dramatic Z orientation / rotation. I've attached a screenshot below to illustrate what I mean.

I tried this expression, but it made the problem worse, and I don't have the expression skills to adapt it to my needs.

How can I have each icon always face the camera, but remain fully level without manually adding keyframes to compensate?



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Dave LaRonde
Re: Auto-Orient to Camera creates unwanted Z orientation
on Sep 20, 2017 at 2:47:55 pm

Instead of auto orient, you could try a lookat expression.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Oskari Gronroos
Re: Auto-Orient to Camera creates unwanted Z orientation
on Sep 28, 2017 at 12:23:00 pm

Thanks, Dave. I was not able to find a lookAt expression that does what I want. I tried both this method and this method, and tried it both by looking at either the Camera or the Null that control the camera rotation. All techniques generate some odd rotation / orientation issues, and does not achieve the "2D flat planes moving in a 3D circle" effect I'm looking for.


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Oskari Gronroos
Re: Auto-Orient to Camera creates unwanted Z orientation
on Sep 28, 2017 at 12:43:38 pm

Welp, having just said that, I found a Dan Ebberts post which does exactly what I wanted! Case closed!


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