I'm a newbie and hoping this group can help me.
I want to learn how to take for example a flat item think of a photo and have it go from flat and roll up into a cylinder. The camera view would show it happen and then the camera view would move thru the cylinder.
Here's where I get "confused" LOL
I know how to make a 3D cylinder in Photoshop Entended and show the 3D tools but taking that and creating the animation in AE is where I get confused. Again I'm a newbie really want to learn and appriciate any imput!! Do I create in AE, Photoshop.... I'm good at Premiere so I understand timeline, keyframes, etc... so that should help I hope
I would like to shot this going from flat to a cylinder with the split at 6 oclock. Ok show this newbie :-)
This work around just seems to make a double or two of the same. I need a complete cylinder with the skin/image going a full 360. I'm tiring to learn how to show it unrolling so the image goes from a flat into this cylinder view.
"I need a complete cylinder with the skin/image going a full 360. I'm tiring to learn how to show it unrolling so the image goes from a flat into this cylinder view."
That's a photorealistic-looking cylinder. I presume you want it to also look photorealistic when it is flat, and as you animate it as it rolls up. As it rolls up, reflections will move. Perspective will change. Specular highlights will move.
These are things you can't accomplish using a still image. These are things you can't accomplish in AE. You need to use a real 3D application to do them.
> These are things you can't accomplish in AE. You need to use a real 3D application to do them.
.... which is, of course, why we include a full 3D application (Cinema 4D) with After Effects now, in After Effects CC (12.0) and later.
The easiest way to do this is with a plug-in like Borris FX or Conoa which will give you the ability to wrap and unwrap a cylinder.
Doing in in CS6 with ray tracing and bending a layer would be a bit of a pain and slow to render. A pain because the curvature percentage is not linear and the layers do not curve around the anchor point. Making it smooth and making it look like a flat plain was rolling up would be a time consuming process.
If you don't want to use a 3rd party plug-in another option would be to use CC sphere and animate a solid moving through a pre-comp to create the cylinder. Duplicate the pre-comp, time reverse the layer, and position it carefully, apply CC Cylinder to the top copy and add a light to match the lighting on CC Sphere. Throw in a Camera to get another view of the sphere and you should be good to go. This took me about 5 minutes to set up. You'll find the CS6 project files here.
If you want even more control all for free and you have After Effects CC you could create a wrapped sphere in Blender, export the obj file, load than in C4D Lite and bring that into AE. I haven't played around with modeling much in C4D Lite but you may be able to do it all in there.
I looked at the project and that is perfect!! But one question I hate to ever both you with. How would I add a image/texture to both the objects. The flat image below is a pipe that our software flattens for observations. The pipe is "unfolded" at 6 o'clock. The top and bottom dark edges are the split points. The cylinder below was done in Photoshop Extended but that was the easy part for this newbie!
Can I add this image to your animated solid?
Just add you're still image to your project. Then select the solid layer in the pre-comp. Now select the footage in the project and hold down the alt/option key and drag to the timeline.
There is really much to it.
I've been playing with your project and it's going great but......
How do I change the total run time? This about 30 frame or 1 sec. I would like to make it about 10 seconds but as a newbie I'm making mistakes. I changed the animated solid to 10 sec and the total comp to 10 sec but the timing is off now. I know it's 15 second fix on your end but I've "wasted" hours playing around with it. Don't get me wrong as I enjoy the learning challenges.
The other is adding a second light on the cylinder??
Ok I said two questions but I have one more LOL
I want the cylinder to appear first and then rotate to the flat image. I did export to a video and then ran backwards but I know that is not the true answer. I'm sure you can enjoy the challenge's of a AE newbie that needs to take the time to learn. BTW I'm taking lessons on Lynda.com but I'm the type that plays for hours just to find out a few key strokes and your done....
Thanks for your patience on this!!
Will do. Thanks
I got the second light going but the animated layer with 3d is the one I can't seem to get the time to change. I can change comp1 and the first animated solid but this one (item 4) seems to be locked at 30 frames. I got the key frame figured out.
The time it takes to wrap the cylinder depends on the speed of the moving layer in the pre-comp. Simple as that. Just change the length of both the pre-comp and the main comp and then move the last keyframe down the timeline. That's all there is to it.