POV-Ray : Newsgroups : povray.binaries.utilities : Wood program but still develop : Re: Wood program but still develop Server Time
28 Nov 2021 15:01:01 EST (-0500)
  Re: Wood program but still develop  
From: And
Date: 1 Nov 2021 02:45:00
Message: <web.617f8b515b6ed24f9970276aa81652d@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:
>
> Hey - this is looking quite promising already.  :)
>

Oh thanks.

> Are you using Bezier splines?  What are you going to be using the curve for?
> Controlling the color_map of the wood pigment pattern? The geometry of the wood?
>  Both?

I choose a beautiful picture, so not very clear what it is.
I upload another picture.
I implement it with Bezier spline, but don't allow user to edit the tangent
handle point, instead it generate the tangent handle points automatically, for
maintain every part of the curve is smooth.

Control the shape of annual ring. instead of perfect circle. Like ... this photo
on gallery:
https://www.istockphoto.com/photo/wood-texture-gm175444922-20420677

I start the wood pattern with perfect concentric circles and constant grow
rate(interval of two ring), but it is too inflexible, I want some variety, so I
rewrite it with segmented curve. I don't have too much idea for the color_map
now.

>
> Maybe you can look at Ed Hynan's EPspline lathe/sor editor program for some
> inspiration.
>
> It's really nice that you're writing it in Java - will we be able to try this
> out by running the applet in a web browser?

I never thought that, maybe it can transfer to applet after finish, but I focus
on the program itself currently.

>
>
> My wood pigment patterns have always been fairly simplistic, and I'm sure I can
> learn a lot of things that I should have been doing for a long time now, just by
> seeing the progress of your development renders and relevant scene code.
>
>
> - Bill

Ha ha... that sky render is too big and need too much experiment to improve, I
cannot develop it in this stage. It is far from an one person work.


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