twisting a filmstrip

L
Posted By
Leveille
Oct 29, 2003
Views
962
Replies
7
Status
Closed
Hi

I made a filmstrip in photoshop. I can distort it a bit, but what i’d like to do is to make it like it is twisting 360 degree on itself so that we see it’s "behind". Of course, all the image would be just inverted on the other side

I tried the distort and perspective transform tool, but no luck

any idea ?

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J
jeffreyjburke
Oct 29, 2003
To do that, you’d probably be best to render it in a 3D app (3D Studio, Cinema 4D, MAYA, etc…) then do compositing within photoshop.

If you havent got a 3D app lying around, your next option would be the liquify tool in photoshop. It is fairly complicated to do. It gets to the point where you are hand drawing some areas to make it look decent.
O
Ol__Whozit
Oct 30, 2003
You’d have to do it in sections, but you could probably do a very passable job with the 3d Transform cylinder shape.
S
Stroker
Oct 30, 2003
Are you interested in a solution that uses Displace?
L
Leveille
Oct 30, 2003
sure. how ? 🙂
S
Stroker
Oct 30, 2003
Leveille, using Displace is proving to be a bit more interesting than I expected. That is, my usual tricks don’t work. It’s going to take more time, but I will get it eventually. I just love doing this kind of thing. Thanks for the challenge. Seriously.

No real sense in waiting for me. I recommend giving a 3d program a try. If you don’t have one, you can get trueSpace 3.2 for free: trueSpace3.2 Full Version <http://forms.caligari.com/forms/ts3all_free.html>. It’s not as robust as today’s 3d progs, but it is well suited for simple things.
O
Ol__Whozit
Oct 30, 2003
I’d like to see that one, too! Distort can do alot, but I don’t think it can do this one.

Leveille, it’ll take a little planning, but it’s not too hard.
1. Figure out how you want your strip to curl. Sketch it out for future reference.Each 1/2 wrap around your imaginary cylinder will be a separate layer.

2. Put your strip at a 45 degree angle with Transform>Rotate.

3. Create a Fixed Size marquee the by dividing the length of your strip by the number of 1/2 wraps to get the width, and twice the width of your strip for the height.

4. Use Guide Lines to track marquee placement, and create the required number of layers of sections of your strip.

5. Use the 3D Transform tool with a cylinder shape on each section to curve the strip and distort the edges. Reverse your cylinder perspective for each one, i.e. one curves up, the next curves down, etc.

6. For each section that curves down after 3D transform, Edit>Transform>Flip Horozontal. This gives you the ‘Back View’ of your strip.

7. Set your layers so that all ‘Back view’ sections are beneath all ‘Front View’ sections.

8. Use the Free Transform Tool (ctrl + ‘T’) and hold down the Ctrl key as you slightly distort the sections to align better (corners usually need some adjustment, and you may need to slightly rotate sections to enhance the effect, but the curve is already there).

9. Clean up any stray corners with the Eraser Tool.
S
Stroker
Oct 30, 2003
Duh! I feel like such an idiot. I pulled a Domain Shift (Kai) to make a D-Map. Works pretty well. Then it occurred to me that a Domain Shift might work straight on the image.

Pick a chunk that you want to twist at the top and bottom. Filter > Other > Offset by half. Then Filter > Distort > Pinch, maybe repeat it once or twice. The Offset again back to normal. Then add finishing touches, like a tad of Liquify or whatever.

Select your next chunk and do all of it all over again.

Worth a shot.

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