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From: Stephen
Subject: Anaglyph (red/cyan), Fantasy image.
Date: 10 Jun 2016 16:47:10
Message: <575b274e@news.povray.org>
This is a follow up to an image I submitted to an early TC-RTC in 2007. 
It got a little bit of criticism because I reused some models from a 
previous animation. So I made a rude version then started this one. The 
same scene after hours when the characters were relaxing.  Using 
red/cyan glasses is much more convenient than making it for shutter 
glasses.

BTW It was Gail Shaw who started this train of thought.

Here is the original:
http://www.tc-rtc.co.uk/portfolio/Stephen/86/index.html

There are a couple of obvious faults but comments welcome.

This version is made with two parallel cameras (Thanks StephenS). I 
still don't understand why using toed in cameras is not better. But 
heigh hoe it's not.

-- 

Regards
     Stephen


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From: Thomas de Groot
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 07:20:49
Message: <575bf411$1@news.povray.org>
I remember that scene now and this one is a somewhat unexpected follow 
up on it. It made me grin: going from high drama to cosy chatting. But 
what do you expect? Theatre.

Now, how about King Lear, hm?

About faults: here too there is that trouble with the focussing of the 
foreground like in StephenS's scene.

-- 
Thomas


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From: StephenS
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 08:43:23
Message: <575c076b$1@news.povray.org>
...
> I still don't understand why using toed in cameras is not better.
...

Try http://paulbourke.net/stereographics/stereorender/

I re-found this recently.

Stephen S


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From: Stephen
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 11:33:39
Message: <575c2f53$1@news.povray.org>
On 6/11/2016 12:20 PM, Thomas de Groot wrote:
> I remember that scene now and this one is a somewhat unexpected follow
> up on it. It made me grin: going from high drama to cosy chatting. But
> what do you expect? Theatre.
>
> Now, how about King Lear, hm?
>

Shalt thou play the king to my fool on yon Blasted Heath?

> About faults: here too there is that trouble with the focussing of the
> foreground like in StephenS's scene.
>

I think that is a different cause.

I suspect it is caused by using a reflective texture for the skin and 
the materials and normals on the floor. When I create a stereo image for 
my shutter glasses. The image is crystal clear and I can see the colours 
of the halo around the priestess properly.


As for being cosy. The poses are taken from this.

https://www.thinglink.com/scene/659847343616557056

-- 

Regards
     Stephen


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From: Stephen
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 11:43:42
Message: <575c31ae$1@news.povray.org>
On 6/11/2016 1:42 PM, StephenS wrote:
> ....
>> I still don't understand why using toed in cameras is not better.
> ....
>
> Try http://paulbourke.net/stereographics/stereorender/
>
> I re-found this recently.
>

Excellent! find. It helps a lot. I might remember it now.
Now I need a non symmetric camera frustum. But we have one.
The good Dr John posted a macro for a true architectural field camera. 
That might do the trick.


http://news.povray.org/povray.text.scene-files/thread/%3Cweb.3e0c736a1f1273cdb29393de0%40news.povray.org%3E/

If not Friedrich Lohmüller has a trick or two.

Thanks Stephen
-- 

Regards
     Stephen


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From: clipka
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 21:57:07
Message: <575cc173$1@news.povray.org>
Am 11.06.2016 um 17:33 schrieb Stephen:

>> About faults: here too there is that trouble with the focussing of the
>> foreground like in StephenS's scene.
>>
> 
> I think that is a different cause.
> 
> I suspect it is caused by using a reflective texture for the skin and
> the materials and normals on the floor. When I create a stereo image for
> my shutter glasses. The image is crystal clear and I can see the colours
> of the halo around the priestess properly.

Now that you mention it:

You certainly have gotten _something_ wrong in your image. Stuff should
be offset horizontally only, but virtually everything in your scene is
also offset vertically. That certainly makes for very tedious viewing.


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From: Stephen
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 11 Jun 2016 22:27:07
Message: <575cc87b$1@news.povray.org>
On 6/12/2016 2:56 AM, clipka wrote:
> Am 11.06.2016 um 17:33 schrieb Stephen:
>
>>> About faults: here too there is that trouble with the focussing of the
>>> foreground like in StephenS's scene.
>>>
>>
>> I think that is a different cause.
>>
>> I suspect it is caused by using a reflective texture for the skin and
>> the materials and normals on the floor. When I create a stereo image for
>> my shutter glasses. The image is crystal clear and I can see the colours
>> of the halo around the priestess properly.
>
> Now that you mention it:
>
> You certainly have gotten _something_ wrong in your image. Stuff should
> be offset horizontally only, but virtually everything in your scene is
> also offset vertically. That certainly makes for very tedious viewing.
>

I'll check that. I'm not familiar with the software and was trying the 
adjustments. Just pressing buttons and seeing what happened.
I don't think it is a good subject and tried a simple animation with an 
old BBC logo. The shutter glass version is crystal clear but the 
anaglyph has ghosting.

-- 

Regards
     Stephen


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From: Thomas de Groot
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 12 Jun 2016 02:55:50
Message: <575d0776$1@news.povray.org>
On 11-6-2016 17:43, Stephen wrote:
> On 6/11/2016 1:42 PM, StephenS wrote:
>> ....
>>> I still don't understand why using toed in cameras is not better.
>> ....
>>
>> Try http://paulbourke.net/stereographics/stereorender/
>>
>> I re-found this recently.
>>
>
> Excellent! find. It helps a lot. I might remember it now.
> Now I need a non symmetric camera frustum. But we have one.
> The good Dr John posted a macro for a true architectural field camera.
> That might do the trick.
>

I am still grateful for the fieldcam. It has helped me in lots of ways. 
I had not realised though that it was exactly the camera needed for 3D.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 12 Jun 2016 03:00:46
Message: <575d089e$1@news.povray.org>
On 11-6-2016 17:33, Stephen wrote:
> On 6/11/2016 12:20 PM, Thomas de Groot wrote:
>> I remember that scene now and this one is a somewhat unexpected follow
>> up on it. It made me grin: going from high drama to cosy chatting. But
>> what do you expect? Theatre.
>>
>> Now, how about King Lear, hm?
>>
>
> Shalt thou play the king to my fool on yon Blasted Heath?

I am afraid I am already the fool.

>
>> About faults: here too there is that trouble with the focussing of the
>> foreground like in StephenS's scene.
>>
>
> I think that is a different cause.
>
> I suspect it is caused by using a reflective texture for the skin and
> the materials and normals on the floor. When I create a stereo image for
> my shutter glasses. The image is crystal clear and I can see the colours
> of the halo around the priestess properly.

Maybe, but I suspect it has to do with what Clipka mentions and maybe 
with non-symmetry.

>
>
> As for being cosy. The poses are taken from this.
>
> https://www.thinglink.com/scene/659847343616557056
>

<shudder> I would not care to join them </shudder>. I have a problem 
with man-built heights; curiously enough, none at all with natural heights.

-- 
Thomas


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From: StephenS
Subject: Re: Anaglyph (red/cyan), Fantasy image.
Date: 12 Jun 2016 08:30:00
Message: <575d55c8$1@news.povray.org>
On 12/06/2016 2:55 AM, Thomas de Groot wrote:
...
> I had not realised though that it was exactly the camera needed for 3D.
>
For animations and scenes with left/right border elements, yes.

This is why I usually post only frame centered objects with white space 
close to the borders.

Stephen S


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