Rotating text without mirroring??

[Roland R. kahlenberg]

Dan Ebberts had a Expression script that used the Blend effect to achieve what you want. I even used a variant of it for one of the templates that is available in our AE Pro Volume 02 Series BUT I can’t recall the entire script and I don’t have AE in front of me.

Essentially, the script looks at where the camera is and uses the Blend effect to decide which layer is displayed. Yes, you’ll need two instances of the logo, one for the backside and the other for the front.

Do take a peek/search at the COW’s Expression forum for the script. Use the words, Blend or Card as keywords and see what you get.

HTH
RoRK

broadcastGEMs – AEPro Volume 02 (Professional Adobe After Effects Project Files – Now Available).

Adobe After Effects Training in South East Asia.

[Jeremy Kemp]

I tried this and it was not working for me. It was still flipping the logo. I got various results when playing with it, but nothing I did worked.

[Roland R. kahlenberg]

It should work. Go through the steps slowly. Did you miss out the step that requires you to rotate one of the precomps? And are you using Dan’s script or are you doing it the nuts and bolts way?

Cheers
RoRK

broadcastGEMs – AEPro Volume 02 (Professional Adobe After Effects Project Files – Now Available).

Adobe After Effects Training in South East Asia.

[Jeremy Kemp]

the thread I read did not say anything about rotating a comp. This is what it said:

I just used this Expression. Got it from the Dan Ebberts bag of Expression tricks a while back-

Switch off the Back Layer. Apply the following Expression to the Front Layer. Ensure that the Blend effect is applied to the Front Layer. Then apply this expression to the “Blend With Original” parameter

LayerName=effect(“Blend”)(“Blend With Layer”).position;
a = to_world_vec([0,0,1]);
b = LayerName – to_world(anchor_point);
c = dot(a,b)/length(b);
if (c > 0){
0
}else{
100
}

[Jeremy Kemp]

When I do all this….which parameter do I use to rotate it…do I use rotation of the layer…or do I use the completion of the card dance or card wipe….using the completion I was able to get the image not to be mirrored, however, it was taking away the effects on the backside (lights, color and texture I applied).

Hope that makes sense!

[David Bogie]

[Jeremy Kemp] “I have an NHL logo that i want to rotate on the y-axis but I do not want the logo to be backwards when it spins.”

In the olden days, we simply changed the y scale from 100 to 0 and back to 100. The illusion is that the object is rotating on its y axis.

You could also create a 3D precomp that has your logo rotating from 0 to 90 degrees and the switch to a copy of it that rotates from 270 to 360 degrees.

bogiesan

[Jerry Witt]

I would do it like this:
Set the NHL logo to 3D (The little cube icon)
Duplicate it
Rotate this duplicated version 180 degrees on the Y-axis
Push it back on the Z-axis so it is behind the first logo
Pull down the duplicated logo’s parenting menu and set the first logo as the parent.
Spin at will

I seem to remember the NHL logo is on a shield and is symmetrical. If it’s not you could put a solid between them.