[klug] 3D Photos with GIMP

[klug.member.lancer at xoxy.net]

You should have four layers (in order from top to bottom)...
1. RED layer #FF0000 for everything (start with a white layer and use 
bucket fill to colour)
2. Left eye image
3. CYAN layer #00FFFF for everything
4. Right eye image

Make the bottom two layers invisible by clicking the eye in Layers 
dialogue so only Left eye and RED are shown.

Make RED have property /home/lancer/Desktop/digital camera/cup3Dglasses1.xcf

Set the mode of RED layer to "screen" which will merge it with the Left 
eye image in a transparent manner.

On the Layers dialogue box, right click and choose "merge visible layers"

Now make the newly created RED layer invisible, and make the other 
layers (CYAN and right eye image) reappear.

Apply "screen" to the BLUE layer, colourizing it to the right eye image 
below it. Merge all visible layers.

You should now have two layers. Make them all visible and on "normal" 
mode, but have the topmost layer at 50% opacity.


When I do this, I get a 3D image that works well with 3D glasses, but 
sometimes it's a bit pale. Perhaps Peter has a better way than "screen" 
to intensify the images?

Lance.

Steve Withers - swithers at mmp.org.nz wrote:

>Hi Folks 
>
>About 18 months ago, I made some 3D photos using GIMP. 
>
>I have a pair of red/blue 3D glasses...and the effect can be quite
>startling. 
>
>Problem is.....I'm stuffed if I can remember how I did it. I know I
>combined the two base photos (left and right) using different
>layers.....one red and one blue - but can't remember how I did it. 
>
>Peter - You must do this kind of thing all the time. 
>
>Any suggestions? 
>
>  
>