I know its been done before (probably many times) but after playing with
Gilles Tran's tree macro I had to make one.
This is my attempt at a bonsai.  I was also inspired by actually getting two
real bonsai, so that helped push me in this direction.  I tried photons but
Povray ran out of memory trying to render with them.  I'm not sure that
photons would really help this scene much anyway.  The "table/deck the tree
is sitting on is supposed to be redwood stained pine.  The bamboo in the
back was made using SOR objects.

Any comments or suggestions? (I know the tree doesn't look like any real
tree in existence, but other than that...)


Patrick Dugan

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Attachments:
Download 'Bonsai.jpg' (109 KB)

Preview of image 'Bonsai.jpg'

Patrick Dugan wrote:
> 
> I know its been done before (probably many times) but after playing with
> Gilles Tran's tree macro I had to make one.
> This is my attempt at a bonsai.  I was also inspired by actually getting two
> real bonsai, so that helped push me in this direction.  I tried photons but
> Povray ran out of memory trying to render with them.  I'm not sure that
> photons would really help this scene much anyway.  The "table/deck the tree
> is sitting on is supposed to be redwood stained pine.  The bamboo in the
> back was made using SOR objects.
> 
> Any comments or suggestions? (I know the tree doesn't look like any real
> tree in existence, but other than that...)

I'm used to the little junipers, so I haven't really got anything to say
about the bonsai itself...

Lighting seems fake somehow, but I can't quite put my finger on it.

The bamboo is either too dark, or too saturated, I think. Or both.

What's that green stuff on the dirt supposed to be? Moss? Mold? Lichen?
Bright green spray paint? You might work on that a bit...

All the same, it's a nice pic.

-Xplo

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Thank you.

Here is the radiosity settings and light I'm using.  Perhaps I shouldn't use
a pure white light but try to emulate
sunlight better.  I agree the lighting is off I'm just not sure what to
alter.

   radiosity{
      pretrace_start 0.08
      pretrace_end   0.02
      count 80
      nearest_count 5
      error_bound 1
      recursion_limit 4
      low_error_factor 0.5
      gray_threshold 0.0
      minimum_reuse 0.015
      brightness 0.75
      adc_bailout 0.01/2
      save_file "BonsaiScene5.rdf"
      load_file "BonsaiScene5.rdf"
   }

light_source {<200, 200, -200> color White * 1.5}

I thought the bamboo was okay but it might go back to the lighting issue.

"Moss" is what I was trying for on the soil.  I used a HF to actually give
the moss some real depth. I might have to cheat and use a real picture of
some moss on the HF.



"Xplo Eristotle" <inq### [at] unforgettablecom> wrote in message
news:3CC32395.7F4EFD02@unforgettable.com...
> Patrick Dugan wrote:
> >
> > I know its been done before (probably many times) but after playing with
> > Gilles Tran's tree macro I had to make one.
> > This is my attempt at a bonsai.  I was also inspired by actually getting
two
> > real bonsai, so that helped push me in this direction.  I tried photons
but
> > Povray ran out of memory trying to render with them.  I'm not sure that
> > photons would really help this scene much anyway.  The "table/deck the
tree
> > is sitting on is supposed to be redwood stained pine.  The bamboo in the
> > back was made using SOR objects.
> >
> > Any comments or suggestions? (I know the tree doesn't look like any real
> > tree in existence, but other than that...)
>
> I'm used to the little junipers, so I haven't really got anything to say
> about the bonsai itself...
>
> Lighting seems fake somehow, but I can't quite put my finger on it.
>
> The bamboo is either too dark, or too saturated, I think. Or both.
>
> What's that green stuff on the dirt supposed to be? Moss? Mold? Lichen?
> Bright green spray paint? You might work on that a bit...
>
> All the same, it's a nice pic.
>
> -Xplo

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"Patrick Dugan" <pat### [at] netinsnet> wrote in
news:3cc336cb@news.povray.org: 

> Thank you.
> 
> Here is the radiosity settings and light I'm using.  Perhaps I
> shouldn't use a pure white light but try to emulate
> sunlight better.  I agree the lighting is off I'm just not sure what to
> alter.

A few suggestions:

It looks like you might have an ambient component in at least some of your 
finishes.  global_settings {ambient_color 0} will fix that problem.

Try moving the light a lot further away and, as you say, adding a yellow 
tint:  light_source {<1, 1, -1>*1e6 color (White + Yellow) * 1.25}

If yellow-tinted light doesn't work, try tinting with red or blue.  Blue 
tinted light will desaturate some of the red tones in the scene.

Soft shadows wouldn't hurt, if the render time isn't too bad.

There are no shadows on the bamboo wall.  Is there perhaps an errant 
no_shadow tag somewhere?

Use double_illuminate on the leaves if you aren't doing so already.

Add a fine surface normal on the pot to break up the specular highlights.  
Same thing for the trunk of the bonsai.

Remember, of course, to delete the radiosity save file before rendering 
after making any of these changes to the scene file.  :-)

Hope this helps.

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> global_settings {ambient_color 0}
You do mean ambient_light, right?
--
__________________
 RAY

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Thanks!  I'm currently implementing your suggestions.
The bamboo wall is actually "a few feet" away from the edge of the table the
tree is
sitting on and that's why it isn't getting the shadow of the tree.

What do you mean by a "fine surface normal"?  Very smalls bumps?
Something like normal { bumps 0.5 scale 0.001}?


"Coridon Henshaw" <che### [at] sympaticoca> wrote in message
news:Xns### [at] 204213191226...
> "Patrick Dugan" <pat### [at] netinsnet> wrote in
> news:3cc336cb@news.povray.org:
>
> > Thank you.
> >
> > Here is the radiosity settings and light I'm using.  Perhaps I
> > shouldn't use a pure white light but try to emulate
> > sunlight better.  I agree the lighting is off I'm just not sure what to
> > alter.
>
> A few suggestions:
>
> It looks like you might have an ambient component in at least some of your
> finishes.  global_settings {ambient_color 0} will fix that problem.
>
> Try moving the light a lot further away and, as you say, adding a yellow
> tint:  light_source {<1, 1, -1>*1e6 color (White + Yellow) * 1.25}
>
> If yellow-tinted light doesn't work, try tinting with red or blue.  Blue
> tinted light will desaturate some of the red tones in the scene.
>
> Soft shadows wouldn't hurt, if the render time isn't too bad.
>
> There are no shadows on the bamboo wall.  Is there perhaps an errant
> no_shadow tag somewhere?
>
> Use double_illuminate on the leaves if you aren't doing so already.
>
> Add a fine surface normal on the pot to break up the specular highlights.
> Same thing for the trunk of the bonsai.
>
> Remember, of course, to delete the radiosity save file before rendering
> after making any of these changes to the scene file.  :-)
>
> Hope this helps.

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The tree is very nice. I think that the moss would look better if it were
slightly less bright and broken into clumps. The textures on the rest of the
scene are less convincing.

 -Shay

Patrick Dugan <pat### [at] netinsnet> wrote in message
news:3cc2324c@news.povray.org...

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impressive model.  background is toolight and too busy though,
imo.

-peter
-- 
Modeling slave for:
"Ballet pour ma fille."
http://www.applesnake.net

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