POV-Ray: Newsgroups: povray.programming: aerial photo as image_map on height

POV-Ray : Newsgroups : povray.programming : aerial photo as image_map on height_field		Server Time 29 Jul 2024 08:10:02 EDT (-0400)

From: Steve Smith
Subject: aerial photo as image_map on height_field
Date: 30 Jul 1998 10:09:09
Message: <35C07202.12CA1E74@pavan.co.uk>

I'm trying to drape aerial photos on a height field using the planar
map_type. My understanding of the planar map_type is that the integrity
of the map would be maintained, but the map image is distorted beyond
recognition.

Thanks in advance for any ideas.

Steve Smith

--
-------------------------------------------------------------------------

Steve Smith
Rhiwlan, Penrhyncoch, Aberystwyth, Ceredigion, SY23 3EH, Wales
Tel: 01970 820750
Email: ste### [at] pavancouk
http://www.pavan.co.uk

Post a reply to this message

From: Steve Smith
Subject: Re: aerial photo as image_map on height_field
Date: 30 Jul 1998 10:29:53
Message: <35C076DD.CE7B9A3A@pavan.co.uk>

Ahhh !!
Just answered this for myself, of course the height field must be rotated
90*x before applying the map.

Steve Smith wrote:

> I'm trying to drape aerial photos on a height field using the planar
> map_type. My understanding of the planar map_type is that the integrity
> of the map would be maintained, but the map image is distorted beyond
> recognition.
>
> Thanks in advance for any ideas.
>
> Steve Smith
>
> --
> -------------------------------------------------------------------------
>
> Steve Smith
> Rhiwlan, Penrhyncoch, Aberystwyth, Ceredigion, SY23 3EH, Wales
> Tel: 01970 820750
> Email: ste### [at] pavancouk
> http://www.pavan.co.uk



--
-------------------------------------------------------------------------
Steve Smith
Rhiwlan, Penrhyncoch, Aberystwyth, Ceredigion, SY23 3EH, Wales
Tel: 01970 820750
Email: ste### [at] pavancouk
http://www.pavan.co.uk

Post a reply to this message

From: Nieminen Mika
Subject: Re: aerial photo as image_map on height_field
Date: 1 Aug 1998 10:13:57
Message: <35c31495.0@news.povray.org>

Steve Smith <ste### [at] pavancouk> wrote:
: Ahhh !!
: Just answered this for myself, of course the height field must be rotated
: 90*x before applying the map.

  I also remember that the image map is _always_ 1x1 units sized regardless
of the bitmap size (so you'll have to scale it appropiately).

-- 
                                                              - Warp. -

Post a reply to this message

From: Mikael Carneholm
Subject: Re: aerial photo as image_map on height_field
Date: 22 Oct 1998 10:33:35
Message: <362F33BE.2777@ida.utb.hb.se>

Also, the image_map is mapped from <0,0,0> to <1,1,0>, so if you want it
centered you have to translate it <-0.5,-0.5, 0>.

------------------------
Mikael Carneholm
Dep. of Computer Science


email: sa9### [at] idautbhbse
homepage: http://www.studenter.hb.se/~arch

Post a reply to this message