Re: Window reversal

[P3D Paul Pascu <pascu@xxxxxxxxxxxxxxxx>]

At 12:43 AM 6/24/97 -0500, you wrote:
>Paul Pascu writes
>
>>Does that mean that there's only one right way to take stereo pictures and
>>if you do it any differently it's simply wrong?
>
>Paul writes this in response to Greg W post about educated stereographers
>not converging cameras. 

I responded to that post but my point wasn't limited to that post.

>Mike K. then replies to Paul's post mentioning
>that they are guidelines for beginners and once past that stage can 
>"break" the rules to gain "intended" effects. 
>
>This is all very true as Mike K. mentions but Paul, I think Greg W. 
>comments are valid for NOT converging cameras. This would be one of
>the last intentions of a stereophotographer and wouldn't normally be
>for any desired effect. 

Maybe none that you'd want.  Does that then make it an absolute "wrong?"  As
Dr.T points out and as you note below, there are reasons that someone might
want to converge cameras.  The "desired effect" that you are speaking of
would seem to be the effect of duplicating reality.  That was the point of
my post - why limited images to that?

>I can only think of one reason and this would
>be for lining up the stereo window (and only at small angles) and not
>to enhance the 3D image for any supposed effect! 

It may not enhance the effect for you.  But it may do something for someone
else.  People's taste's are different.  Your tastes don't present you with
any other reason to converge cameras but that doesn't lead to the conclusion
that the practice is wrong.  It's just wrong for what you want to create.  I
think there's plenty of room to explore new ground.

>Would you really want
>to introduce keystoning in your 3D images, and what would be the
>purpose???

Would I want to... sure.  Possibly initially for experimentation.  I don't
know where it would lead.  I know it would lead away from a true rendering
of reality but I won't dismiss it simply for that reason.

Paul Pascu


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