On Mon, 26 Jun 2000 19:01:42 +0100, "Mick Hazelgrove"
<mic### [at] mhazelgrovefsnetcouk> wrote:

>> Wow Mick... I haven't even tried that many yet.... I guess the grass isn't
>> so fast when so many are used :) I wonder if making one smaller square of
>> grass and then copying it would save memory? You'd have to make sure nobody
>> could see the repetitions.

>That's the usual technique but you'd loose the advantage of eval_pigment.

Not if you use a tileable pigment made with Chris' macro :)
 I
>don't think youd save much memory either. As most of the parsing time was
>spent on creating bounding slabs, I guess that manual bounding is the way to
>go when I work out how to do it!

A quadtree hierarchy of bounding boxes would be a good shot at it, I
guess.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

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