Time stretch won’t stretch over 3 seconds, why?

[Steve Bentley]

ya that looks like you’ve got it. You might want to make the AE comp have a 270 degree shutter angle instead of 180 in the advanced tab of the comp settings (cntlK); it seems to need a bit more blur to match the pegs going around. The spin of the wedges of the wheel dont really match the spin of the real wheel either so you might want to tweak your acceleration curve of the rotation.

[Ryan Elder]

Okay thanks. I was trying to adjust to the pegs, but I can’t seem to keep up with the, cause the key frames become more obvious when I try to keep up with the pegs exactly. But I will keep trying. I thought that the actual wheel of fortune TV show was shot at a 180 degree shutter speed though, so why would 270 be the one to choose?

[Steve Bentley]

Broadcast video cams don’t really have shutters per se. They do blur but not in the traditional movie shutter sense. I was thinking it just needed more blur to match the pegs and you can either increase it with a motion blur effect or just jack up the shutter angle and let AE’s built in blur do the trick.
If you can match the initial speed of the wheel, use the animation curve editor to taper that speed out to where the real wheel stops (if you can) it should be fairly linear right up to the end where it will be a curve.

[Ryan Elder]

Okay thanks, I haven’t used the animation curve editor before, but will try it. However, Premiere Pro froze and I think this has now caused the motion blur to go away now.

But it’s really hard to tell because I cannot tell the difference in the video with motion blur compared to without, where as you seemed to be able to. How do you tell if is motion blur by looking?

[Steve Bentley]

First remember to turn on the AE comp’s motion blur button and not just the layer’s. Then try jacking the shutter angle up to something silly like 600 which will overdo the blur. Premier should have nothing to do with the blur except for sending the rotation keyframes into AE. Are you rendering out of AE and then importing the movie back into premier or just importing the AE project back into Premier?
It might be your pipeline thats at issue. I don’t think you can import premier into AE and then import that AE project back into premier – that would be like the snake that eats its own tail.

[Ryan Elder]

Okay thanks. Basically I right click on the clip in Premiere and then click on “replace with after effects composition”.

This sends the clip out of Premiere into after effects, and then back into Premiere after.

However, I cannot tell if there is motion blur or not.

The reason why I don’t want to make a movie out of AE is that there is still work to be done on it in Premiere and if I make the movie in AE, it can put me behind in other ways since it’s not finished left and there is still Premiere work to do.

I may want to adjust the rotation in different ways, as well as the position, etc. So I don’t want to finish the effect right after adding the motion blur so to speak. It’s hard to tell if it plays with motion blur in AE. I assume it does, since it’s on, but it plays it in a jittery way in AE, compared to Premiere.

But when I send clips into AE from Premiere, AE can add an effect and then it will show up in Premiere. Like for example, if I add a color to it in AE, the color will then show up on the clip in Premiere. So it works for everything else pretty much.

[Steve Bentley]

That sounds like it would be a good pipeline to keep things “live”. But because the motion blur is not an “effect” that could be shared between apps (it’s really the comp looking after that for you- perhaps premier has a shutter based motion blur on its comps?) it may need to be rendered in AE to make pixels that blur.

I just can’t believe, given Adobe’s history, that Premier and AE are that aligned/transparent to each other. Every effect would have to work in exactly the same way, in the same color space, with the same kind of motion graph editor. The stack order, easing algorithms, and blending functions would all have to be identical – even the way you can extend footage in AE: I’ll bet dollars to donuts can’t be done in Premier (and hence your shortening clip length)
Premier used to be an editor, so if you wanted complex motion or effects added you went to AE and rendered those and brought the resulting footage back in. The motion curves in Premiere were just so primitive you just couldn’t do the things you could do in AE. But that was back then, and perhaps I need to look at Premier again, especially since Final Cut has lost its mind.
It’s always seemed to be Adobe’s policy to keep every app’s specialty separate (it’s why we don’t have a stellar paint plugin in AE, which is desperately needed, even though Adobe owns the preeminent Paint package)

[Ryan Elder]

Oh okay thanks. Well when I asked you before if the last shot of the wheel had motion blur on it, you said yes. That was sent from Premiere into AE, and then I clicked on the motion blur (which caused me to have to extend the clip, cause it was shortened). Then the same clip in Premiere must have had the motion blur on it, cause you said you could see it, right?

However if Premiere freezes, then the pipeline for the motion blur seems to crash, but it’s hard to tell since I have trouble seeing motion blur.

[Ryan Elder]

I tried rendering out the clip again, is the motion blur still in the shots?

https://www.youtube.com/watch?v=ll7DlGPRZxY

[Steve Bentley]

There is definitely blur there on the overhead shot. I went to compare it to the first movie you sent which had none but its already been taken down.
I think any client would be ok with this level of blur. When there is none it sticks out like a sore thumb and if I have to really look it means there is probably enough.