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CerviCaus
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How to correct perspective in Revolve effect options?

Jul 21, 2012 1:41 PM

Tags: #illustrator #perspective #revolve

Hi!

http://farm9.staticflickr.com/8291/7617314952_04b2d73dec_b.jpg

 

Here is cylinder made of rectangle using 3d Revolve effect.

I want to change perspective of this cylinder like the red lines show, but it goes a bit to the left. I need exactly to the front. I think this is because perspective based on the center of rectangle (in the green circle) not on the center of cylinder. Is it possible to move the center of rectangle? If not, is any other dicisions how to make what I want?

 

Thanks.

 

P.S. Sorry for my english

727 Views   8 Replies   Latest reply: CerviCaus, Jul 22, 2012 7:54 AM
 
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  • Silkrooster
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    1. Silkrooster,
    Jul 21, 2012 8:53 PM   in reply to CerviCaus
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    To rotate forward, adjust change the value I have marked. Leave the other two values at 0.

     

    revolve-demo.jpg

     
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  • CerviCaus
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    2. CerviCaus,
    Jul 21, 2012 11:40 PM   in reply to Silkrooster
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    Thanks for answer!

     

    But i need perspective front view, not look like isometric.

     
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  • Silkrooster
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    3. Silkrooster,
    Jul 22, 2012 12:53 AM   in reply to CerviCaus
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    Did you see the perspective slider?

     

    revolve-demo- perspective.jpg

     
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  • CerviCaus
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    4. CerviCaus,
    Jul 22, 2012 1:14 AM   in reply to Silkrooster
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    Yes I did.

    Look at how perspective is changing - a bit to the left, not exactly to the front. Look again at my first picture, the same problem.

     
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  • Silkrooster
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    5. Silkrooster,
    Jul 22, 2012 1:23 AM   in reply to CerviCaus
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    Yeah, I beleive that has to do with 3 point vs 1 point perspective. (guessing)

     
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  • CerviCaus
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    6. CerviCaus,
    Jul 22, 2012 3:58 AM   in reply to Silkrooster
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    Thanks for answers. I'll try to find another way.

     
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  • emil emil
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    7. emil emil,
    Jul 22, 2012 7:48 AM   in reply to CerviCaus
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    I would say it is a poor 3D feature. At the perspective you want the Left and Right Edge of the Offset attribute even at zero is affecting the appearance. They missed to program a Center option.

    As many other things in Illustrator you can use a workaround - revolve just a vertical line instead of rectangle and then increase the Offset in the 3D effect. This will work for the view you want, but the problem is it has no cap and if you want to change the view with this perspective from above or bottom the caps will be missing.

     

    edit: actually, you can get what you want by using Extrude and Bevel with a circle made with the Ellipse tool. Choose Front view and rotate 90° around the X axes.

     
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  • CerviCaus
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    8. CerviCaus,
    Jul 22, 2012 7:54 AM   in reply to emil emil
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    Good idea! Caps don't needed.

    It works right using straight vertical line. In my case I need a bit curvy, but anyway it's helpful decision, and I got what I want. Thanks!

     
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