CGTalk > Techniques > Art Techniques and Theories
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 09-08-2011, 01:08 AM   #1
lylemills
New Member
portfolio
Lyle
Richmond Hill, Canada
 
Join Date: Jun 2011
Posts: 1
Overlay and Trace Method

Hi All,

Please forgive me if this is the wrong forum to post this. Not really sure where it belongs. I am trying to do do some overlay and trace to create linework from an image I have composited together in Photoshop of a building model done in Sketchup with 2D photo entourage, cars and trees. I have printed out the image and traced it on tracing paper to create the linework for my image. I have scanned the linework and set it on a layer to multiply mode and would like to have it "line up" with the original photoshop image as I still want to use the information from the original composited "collage" image I have created in photoshop for colors, textures etc... I am having difficulty doing this. Is there a trick to this or a simple way to line up the linework?

Thanks for any help
 
Old 09-09-2011, 05:29 AM   #2
Lunatique
Pragmatic Dreamer
 
Lunatique's Avatar
CGTalk Forum Leader
portfolio
Robert Chang
Artist|Writer|Composer
Photographer|Director
Lincoln, USA
 
Join Date: Mar 2002
Posts: 8,726

Why did you have to print it out and then trace it by tracing paper, and then scan it? Why didn't you just add another layer in Photoshop and do the tracing there? Also, there are Photoshop filters you can use to approximate a trace, if you tweak the filter and maybe additional tweaking later.

But to answer your question, use the transform tool (ctrl+t). You can right-click inside the transformation selection for different transform methods--they're very easy to figure out. You can also hold down shift to keep the aspect ratio while transforming the overall size.
 
Old 09-09-2011, 12:10 PM   #3
Quadart
It’s the journey…
 
Quadart's Avatar
portfolio
Bill Melvin
freelance cg artist
USA
 
Join Date: Jan 2007
Posts: 1,706

Lining up two images with the Transform Tool

I have a Transform Tool method that I always use when lining up two images that are identical (or are off in aspect ratio) but at different sizes and rotated differently from each other.
After reducing the opacity of the image I want to line up (which is on a layer above the other image, of course) and setting the transform operation, I’ll find a small but key reference point on the image (a sharp corner, a dark or bright dot, etc.) and overlap the reference mark on the two images. Then I find the center point of the transform rectangle and move it over the reference mark. While holding shift/option (on Mac), this will allow you to proportionally reduce/inlarge and rotate the image you want to fit around that new center point location, while dragging one of the transform selection corner points. This method takes a lot of trial and error shifting/relocating of the overlay image off the table. It makes the process soooooo much quicker. You can also use this method first, before adjusting the image if the aspect ratios are different between the two images.
__________________

Last edited by Quadart : 09-09-2011 at 12:13 PM.
 
Old 09-09-2011, 12:10 PM   #4
CGTalk Moderation
Lord of the posts
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,481
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 02:54 PM.


Powered by vBulletin
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.