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Hi all,
I'm working on a way to recreate existing landscape using POVRay. I got
DEM data about the real area (VistaPro DEM data), transformed it to PNG
image to generate HF and ... everything is working fine :-)
Now, my question is : how can I recreate vegetation or material ?
I'm thinking to create a sort of "image" to map on my HF where I can
tell to POV :
- Ok, if a pixel in light green, use a grass like texture,
- if it's dark green, it's a tree area,
- if it's blu, use water texture with waves,
- if it's gray, it's granit ...
How can I do it ?
An example is welcome as I'm restarting only to play with Pov after a
very long time ...
Thanks
Laurent
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destroyedlolo nous apporta ses lumieres ainsi en ce 09/07/2004 20:57... :
> Hi all,
>
> I'm working on a way to recreate existing landscape using POVRay. I
> got DEM data about the real area (VistaPro DEM data), transformed it
> to PNG image to generate HF and ... everything is working fine :-)
>
> Now, my question is : how can I recreate vegetation or material ?
>
> I'm thinking to create a sort of "image" to map on my HF where I can
> tell to POV :
> - Ok, if a pixel in light green, use a grass like texture,
> - if it's dark green, it's a tree area,
> - if it's blu, use water texture with waves,
> - if it's gray, it's granit ...
>
> How can I do it ?
>
> An example is welcome as I'm restarting only to play with Pov after a
> very long time ...
>
> Thanks
>
> Laurent
>
If you have only a few discreete values, you can convert your image to a
paleted one (16 or 256 colours) and use the index to decide what texture
to use. I can't give you an example as I never done that, but it's
mentioned somewhere in the documentation. Look for "texture_map".
Alain
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Alain <aze### [at] qwerty gov> wrote:
> > Laurent
> >
> If you have only a few discreete values, you can convert your image to a
> paleted one (16 or 256 colours) and use the index to decide what texture
> to use. I can't give you an example as I never done that, but it's
> mentioned somewhere in the documentation. Look for "texture_map".
>
> Alain
Ok, Merci Alain :-)
It's exactly what I'm looking for :-)
And I found scene/advanced/landscape.pov (searching for texture_map example)
a script doing what I wan't to do.
No, I will create a PNG file to define texture to USE and I'll try to
recreate Annecy vallee in POV.
Thanks for your help :-)
Laurent
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