On Wed, 19 Feb 2003 15:02:54 -0000, "Doctor John" <jgu### [at] netscapenet>
wrote:
> > Here is an example of rendering with user_definned camera (patch).
>
> Very interesting! Tell us more

I don't know what you want to know... For example using that camera you can:

- make cone, texture, unroll it to flat arc, then print, cut and glue 3d model
- create subviews
- "morph" cameras
- apply real deformation instead of normal{}

Probably controlling it won't be trivial thing.

ABX

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"ABX" <abx### [at] abxartpl> wrote in
> I don't know what you want to know...

Umm, like where can I get the patch? .... or if it's not yet ready for
public release, what sort of time-scale will we be looking at?

John
--
Run Fast
Run Free
Run Linux

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On Wed, 19 Feb 2003 15:45:31 -0000, "Doctor John" <jgu### [at] netscapenet>
wrote:
> "ABX" <abx### [at] abxartpl> wrote in
> > I don't know what you want to know...
>
> Umm, like where can I get the patch? .... or if it's not yet ready for
> public release, what sort of time-scale will we be looking at?

I do not know :-( It's part of next MegaPOV. MegaPOV 1.1 will not be released
before sources of POV-Ray 3.51 because it is builded over 3.51. I do not know
when 3.51 will be available. If you really need user_defined camera patch for
your not started 'Old Technology' image I can mail you necessary changes :-)

ABX

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in news:sh255vomna91r0d9htauhkuhl3p2harpcv@4ax.com ABX wrote:

> Here is an example of rendering with user_definned camera (patch).

Very interesting!
What happens if you use focal blurr? 

Ingo

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"ABX" <abx### [at] abxartpl> wrote
> If you really need user_defined camera patch for
> your not started 'Old Technology' image I can mail you necessary changes
:-)

Thanks for the offer, but don't worry; I'll wait until everyone else gets
it. Besides its a bit late for me to start playing with new effects.

John
--
Run Fast
Run Free
Run Linux

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Cool,
did you made any experiment to render "stereogram", I join one that was done
with 4 different render(4different cameras), and additionnal select, cut &
paste work with paintshop.
It is why i give up to render an animated scene with this technique.
Could it be possible to do it in one shot with your user defined camer?

Chaps.

"ABX" <abx### [at] abxartpl> wrote in message
news:sh255vomna91r0d9htauhkuhl3p2harpcv@4ax.com...
> Here is an example of rendering with user_definned camera (patch).
Essentially
> it is camera type where rays sended from camera are defined using
functions.
> Using user_defined camera you can mimic all already existing camera types
as
> well as you can average (coordinates, not result) two views, select
subviews,
> etc, etc. Rays can be placed at any place in any direction. Camera's
'surface'
> can have discontinuity areas (correct word?). In posted example there is
only
> one camera. Four subviews are simple joined using function{select(,,,)}
with
> other functions. They are as follow:
>
>   top-left     - perspective camera with low angle - nearly orthogonal
>   top-right    - rays starts from wall of cylinder but are 'angled' like
in
>                  perspective camera so rays are not parallel to plane
>   bottom-left  - simple perspective camera
>   bottom-right - averaging from spherical camera to orthogonal, from one
>                  location to another
>
> Animated version in p.b.a. Any comments ?
>
> ABX
>
>

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Attachments:
Download 'noelste2.jpg' (28 KB)

Preview of image 'noelste2.jpg'

"chaps" <cha### [at] yahoocom>:
> Cool,
> did you made any experiment to render "stereogram", I join one that was done
> with 4 different render(4different cameras), and additionnal select, cut &
> paste work with paintshop.
> It is why i give up to render an animated scene with this technique.
> Could it be possible to do it in one shot with your user defined camer?

Unfortunatelly I'm this kind who never play with stereograms because I'm not
able to see it (thought I did not tried it much). I'm not sure what kind of
pseudo 3D images you mean (I recall at least 3 types) but I suppose user_defined
can be enough. Actually I think that another feature will be better for this
purpose: taking view of cameras into pigment{camera_view{camera definition}} and
then combine those pigments in function driven post processing using depth
output. This can be done already.

ABX

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On Tue, 18 Feb 2003 14:37:15 -0500, ABX wrote:

> Here is an example of rendering with user_definned camera (patch).
> 
> ABX
> 

I'm very interested in your user_definned camera (patch). This is
exactly what I need. I have made my own patch which hard codes a
special type of camera. I have used my camera to produce images for a
3D hologram printer. One 5cm by 5cm hologram consists of 2500,
1024x768 images.  The printer at this stage can only make single
color transmission holograms. To my amazement, once the transmission
hologram is copied to a reflection hologram it looks very good!

The bad news is with this economy the money has dried up for expanding
the printers capabilities.

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On Mon, 10 Mar 2003 07:54:29 -0500, Brad Paul <bra### [at] bdp-opticscom>
wrote:
> > Here is an example of rendering with user_definned camera (patch).
>
> I'm very interested in your user_definned camera (patch).

user_defined actually

> This is exactly what I need.

Is this enough for you to wait for next MegaPOV or do you need it
immediately ?

> I have made my own patch which hard codes a
> special type of camera. I have used my camera to produce images for a
> 3D hologram printer. One 5cm by 5cm hologram consists of 2500,
> 1024x768 images.

I'm not sure how my patch can make your life easier...

ABX

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On Mon, 10 Mar 2003 08:14:05 -0500, ABX wrote:

> On Mon, 10 Mar 2003 07:54:29 -0500, Brad Paul <bra### [at] bdp-opticscom>
> wrote:
>> > Here is an example of rendering with user_definned camera (patch).
>>
>> I'm very interested in your user_definned camera (patch).
> 
> user_defined actually
> 
>> This is exactly what I need.
> 
> Is this enough for you to wait for next MegaPOV or do you need it
> immediately ?
> 
>> I have made my own patch which hard codes a special type of camera. I
>> have used my camera to produce images for a 3D hologram printer. One
>> 5cm by 5cm hologram consists of 2500, 1024x768 images.
> 
> I'm not sure how my patch can make your life easier...
> 
> ABX

With different types of special cameras I can produce a verity of
effects easily. I can make a hologram that does unrealistic
things. For example with a hologram with a field of view of 90 deg I
can show 180 deg of the object by making it rotate faster than the
observer. Of cores I can hard code any of these but with your
user_defined camera it would be essayer for me to quickly try different
types of cameras.

When is the next version of MegaPOV going to come out? Will this
version be the one for Linux?

I will not be working on the hologram or related projects until mid-April.

Thank you,
Brad Paul

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