"Boumboum34" <boumboum34[at]yahoo[dot]com> schreef in bericht
news:web.425daadd2269e04c741a4fef0@news.povray.org...
> I haven't mastered plant placement yet. I'm still trying to figure out how
> to use pigment_eval() and trace() to make the path clearer.
>
I shall put a (new) demo scene and macro p.b.s-f. You will be able to
extrapolate from that I think.
Look for: eval_pigment demo

Thomas

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Boumboum34 wrote:
> Oops, forgot to add this. Here's a reference to another japanese maple
> photo, which seems rather close to my image:
> 
> http://aggie-horticulture.tamu.edu/county/smith/media/0074.jpg
> 
> They *do* vary! :)

Rather striking tree.. Yes, a shade darker and I think you'd have it 
precicely.


-- 
~Mike

Things! Billions of them!

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Alain <ele### [at] netscapenet> wrote:

> Then, have a base pattern like gradient, to give  an overall shade
> variation, and granite, to give some random shade variations.

An excellent idea....I actually was thinking of something similar, but with
one variation. Not sure how to best put it in words but here goes.

Perhaps some kind of macro, that acts as a sort of color picker for the
underlying gradient/granite 3d pattern. Tint the entire leaf with the color
of that precise point in the pattern. That way, the size of the leaves
won't matter--it'll still be tinted with the same single color. The color
doesn't vary within a leaf--it only varies from one leaf to another.

This presupposes the ability to assign a seperate color to each leaf in the
tree. This is the part I haven't figured out yet. I can of course put all
the leaves into a union, but then all the leaves would be assigned the same
identical color or 3d texture.

But the gradient/granite idea does sound like a step in the right direction.
I want to play with this idea some, as I do love those New England Autumns.
I notice the colors not only vary from tree to tree but from branch to
branch within the same tree,and of course from leaf to leaf.

Thanks for the brainstorming! :)
--Boumboum34

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