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Subject : Re: [Anaglyphs] Best positioning of window - Art
From : "Brian Wallace"
To :
Date : Sun, 2 Dec 2012 15:53:19 -0500

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Hi Art,
 
As far as the "window position" goes... try and adjust it so the NPO (Nearest Point Object), in this case the foreground rocks, are behind the SW (Stereo Window).  When people say, "Push it behind the window", this is what they mean.  If the NPO is exactly at the stereo window, that is known as "Zero parallax".  When an object or NPO comes "through the window" without touching the edge of the stereo window, this is a good TTW (Through The Window) effect.  When an object or NPO comes through the stereo window but intersects with the edge of the window, this causes a disturbance and discomfort in our minds since in real life this could not happen and our minds subconsciously know that something is breaking the laws of physics.  In other words, treat the stereo window as if it is a REAL LIFE window.  If a ball was thrown through the middle of the window toward the viewer, we know that is possible and can come through toward us.  If the ball hits the edge of the window, we know it can not come through that area as it would physically be impossible in real life.
 
Each of your versions have the NPO coming through the stereo window (past zero parallax) but they are intersecting with the edge of the window causing a distraction called a WV (Window Violation).
 
In SPM (StereoPhoto Maker), the "Easy Adjustment" feature can be used to set the NPO back behind the Stereo Window (Zero Parallax) and this will correct the WV.
 
Cheers,
Brian
 
----- Original Message -----
From: clarkaw
Sent: Saturday, December 01, 2012 5:44 PM
Subject: [Anaglyphs] Best positioning of window

Hi all,
I?m at a loss as to the best positioning of the window.
Here?s three variations. The first has the foreground bushes in the fixed position (maybe there?s a better way to describe this?).
The second is focused on the rocks halfway across.
The third is focused on the telephone poles on the ridge.
Since there?s not a specific subject, do  you just aim for something in the middle?
Art ?Curious in California? Clark
 
 
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