"Kenneth" <kdw### [at] earthlinknet> schreef in bericht 
news:web.4829bb09dace545278dcad930@news.povray.org...
> "Zeger Knaepen" <zeg### [at] povplacecom> wrote:
>> Cool, but you don't need the height_field, just use eval_pigment.  That 
>> way,
>> you can use any pigment as a mask...
>
> ....and using it as a 3-D mask, which you outline in the code example, 
> sounds
> REALLY intriguing! I'm guessing that such a technique will work because 
> the
> pigment pattern is 3-D rather than 2-D (as in my original image_map 
> example)?
> Wow. If so, then my limited little masking trick just took on a whole new
> dimension--literally!! Thanks for opening my eyes.
>

He he!! Yes, I suppose that might be an interesting development. I keep a 
bit worried though about the 'out of memory' that I got with the 
eval_pigment variation. Maybe it was just chance (I shall have to 
investigate further). The slower parsing can be compensated in the end by 
writing the found positions to a file and read them back later for 
rendering.
I must say, Kenneth, that your little elegant height_field technique appeals 
to me a lot and I shall use it a lot where it can easily substitute 
eval_pigment.

Thomas

Post a reply to this message