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Lance Birch <lan### [at] usa net> wrote:
: Wouldn't it be MUCH simpler to use a format that outputs an alpha channel
: and open it up in your favourite editor and simply overlay it onto the
: background image with the alpha channel as the mask?
Do you call _that_ simple?
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
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Paul Vanukoff <van### [at] primenetcom> wrote:
: Well ... maybe it wouldn't be *too* hard to write a little macro to position
: a plane (or a flat box) a specified number of units (few thousand) away,
: perpendicular to the camera's vector, and map an image onto at the right
: size and ratio. If one knows one's mathematics that is .. hmm ...
How would it work with an ultra_wide_angle or a fisheye camera?
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
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> Lance Birch <lan### [at] usanet> wrote:
> : Wouldn't it be MUCH simpler to use a format that outputs an alpha
channel
> : and open it up in your favourite editor and simply overlay it onto the
> : background image with the alpha channel as the mask?
>
> Do you call _that_ simple?
It is for me...
Of course if this were MAX I'd just set it up with a background set as
Screen mode with a bitmap mapping type and load the piccy... ;) hehehe
Seriously though I shouldn't be that difficult to add this kind of
functionality to POV-Ray (not that I could do it, but I'm sure someone with
some good C knowledge could)
--
Lance.
The Zone - http://come.to/the.zone
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> My idea was that if the ray shot from the first pixel doesn't hit
> anything, then the first pixel of the image is taken, and so on. This
> regardless of the position of the camera.
Sounds like an application for a RenderMan imager shader. Groan.
Unfortunately, I don't think POV-Ray has anything like that.
Sounds like you'll have to composite post-render to get that
effect.
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My memory shows glitches even when drinking coffee.
Peter Popov wrote:
> (my memory is showing glitches since I stopped drinking coffee)
>
> Peter Popov
> pet### [at] usanet
> ICQ: 15002700
--
Mr. Art
"Often the appearance of reality is more important
than the reality of the appearance."
Bill DeWitt 2000
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My apologies... Machine memory constraints as imposed by the way POVRAY uses
the memory in a machine.
It would be nice to have an infinite resource platform to perform POVRAY
tracing on. Unfortunately, financially speaking, very few of us do.
Chris Huff wrote in message ...
>What memory constraints? The limit on the number of objects is so large
>I highly doubt you would ever reach it by accident. And to reach it on
>purpose would require a huge system, huge being an understatement.
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"mr.art" wrote:
>
> My memory shows glitches even when drinking coffee.
memory? whats that?
i wonder what this button does *click* >message sent.
--
//Spider -- [ spider@bahnhof.se ]-[ http://darkmere.wanfear.com/ ]
And the devil in black dress watches over
My guardian angel walks away
Life is short and love is always over in the morning
Black wind come carry me far away
--"Sisters of Mercy" -- "Temple Of Love"
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Valerie Robbins wrote:
>Is it possible with POV Ray 3.1 to put in a background image. I know about
>the sky sphere, but I would like to have my objects in the foreground, and
>then a bitmap (or some other graphic format) in the back, like a picture of
>some snowy mountians. Is this possible without actually modelling the
>mountains? I know that many software packages have features like this, but
>I'm at a loss to find anything mentioned in the POV documentation on it.
If you're using default perspective camera you can use the sky_sphere
together with my Illusion Include File.
It will basically map the image on the sky_sphere but while a normal
image_map applied to the spherical sky_sphere would be distorted, the
Illusion Include File prevents this.
It's available at http://rsj.mobilixnet.dk/3d/illusion/illusion.html
Greetings,
Rune
---
Updated December 22: http://rsj.mobilixnet.dk
Containing 3D images, stereograms, tutorials,
The POV Desktop Theme, 350+ raytracing jokes,
miscellaneous other things, and a lot of fun!
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