POV-Ray : Newsgroups : povray.binaries.images : Amazonas : Re: Amazonas Server Time
19 May 2024 04:46:45 EDT (-0400)
  Re: Amazonas  
From: Thomas de Groot
Date: 19 May 2010 03:21:51
Message: <4bf3918f$1@news.povray.org>
"Jaime Vives Piqueres" <jai### [at] ignoranciaorg> schreef in bericht 
news:4bf28f4b@news.povray.org...
>   Indeed you could use this technique for that... it's very easy, 
> specially
> if you are already using a heighfield for the ground. Make a copy of the
> grayscale map, and paint black the zones where you don't want grass, and
> white for the rest. Then declare a pigment function of it:
>

...and using red, green, and/or blue you can add even more distribution 
possibilities; or using the greyscale intensity of course. As this, in the 
end, may need much parse time, it is efficient to save the values (position, 
distribution type, etc) to file and read them separately. I used that 
technique for the vegetation of my TC-RTC entries: 
http://www.tc-rtc.co.uk/imagenewdisplay/stills/index118.html and 
http://www.tc-rtc.co.uk/imagenewdisplay/stills/index153.html

Thomas


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