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From:
Subject: Fern II
Date: 12 Mar 2002 07:27:07
Message: <3c8df41b@news.povray.org>
This is the full thing....
regards
SY


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test4.jpg


 

From: Zeger Knaepen
Subject: Re: Fern II
Date: 12 Mar 2002 07:50:39
Message: <3c8df99f@news.povray.org>
> This is the full thing....
> regards
nice modelling!
But... (always a but...)
One thing that's been bothering me with all your fern-images, is the lighting...
The shadows are too dark.
Try something like this:
//begin
#declaren main_light_location=<insert location here>;
light_source {
    main_light_location
    rgb 1
}
light_source {
    main_light_location
    rgb <.5,.4,.3>
    shadowless
}
light_source {
    -main_light_location
    rgb <.4,.5,.9>
    shadowless
}
//end

cu!
--
camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
<.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x)               // ZK http://www.povplace.be.tf


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From: Bill DeWitt
Subject: Re: Fern II
Date: 12 Mar 2002 08:21:52
Message: <3c8e00f0@news.povray.org>
I'd buy that.


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From:
Subject: Re: Fern II
Date: 12 Mar 2002 10:32:40
Message: <3c8e1f98@news.povray.org>
Hi,

> nice modelling!

Thanks.

> But... (always a but...)

I expected that :-)

> One thing that's been bothering me with all your fern-images, is the
lighting...
> The shadows are too dark.

Yep. Pretty hard shadows since I haven't set up radiosity yet and don't use
any ambient at all. (Speed reasons, at least for the radiosity stuff). The
last image uses a area light (but only 3 x 3).

> Try something like this:

Ok, I'll try this as well. Since I have the fern as a file (116MB) it is
parsed within 6 minutes :-))

thanks for feedback,
regards
SY


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From: Hugo
Subject: Re: Fern II
Date: 12 Mar 2002 10:45:15
Message: <3c8e228b@news.povray.org>
> Ok, I'll try this as well. Since I have the fern as a file (116MB) it is
> parsed within 6 minutes :-))

Gosh!!  :o)  Well, pardon me if I missed something in previous threads but
wouldn't it be a good idea to reuse some leafs?  I know you have coded a
good way to control details, but 116 MB is still .... *raise eyebrows*  :o)

But good work!

Regards,
Hugo


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From:
Subject: Re: Fern II
Date: 12 Mar 2002 11:30:05
Message: <3c8e2d0d@news.povray.org>
Hi,

this is the result with your lighting. I had to remove the background plane
since it would have blocked the backlight.

Looks a bit washed out IMHO.
Next test will be with radiosity.

regards
SY


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Attachments:
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test5.jpg


 

From:
Subject: Re: Fern II
Date: 12 Mar 2002 11:34:07
Message: <3c8e2dff@news.povray.org>
> Gosh!!  :o)  Well, pardon me if I missed something in previous threads but
> wouldn't it be a good idea to reuse some leafs?  I know you have coded a

Hmmm. Hardly. The whole fern is a single mesh. Doesn't help to reuse
triangles, at least you have to move them to their proper place *gg*

> good way to control details, but 116 MB is still .... *raise eyebrows*
:o)

Well... it is large of course. On the other hand: the LOD settings are quite
young and not yet properly arranged. Additionally the number of triangles
per leaf isn't set up correctly yet. I think I can cut down the file size to
the half without loosing details (in the front).

And: don't forget that the main wings are 50cm in length and have more than
80 leaves each!

> But good work!

Thanks. As you know: it took long enough.
regards
SY


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From: Zeger Knaepen
Subject: Re: Fern II
Date: 12 Mar 2002 11:35:22
Message: <3c8e2e4a@news.povray.org>
> Hi,
>
> this is the result with your lighting. I had to remove the background plane
> since it would have blocked the backlight.
no it wouldn't...  it's a shadowless light_source, it doens't get blocked :)

> Looks a bit washed out IMHO.
I like it!

> Next test will be with radiosity.
Will be much slower and the results won't be much different I think...

cu!
--
camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
<.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x)               // ZK http://www.povplace.be.tf


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From: Sir Charles W  Shults III
Subject: Re: Fern II
Date: 12 Mar 2002 11:41:30
Message: <3c8e2fba$1@news.povray.org>
It's fantastic.  Keep up the great work.

Cheers!

Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip


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From:
Subject: Re: Fern II
Date: 12 Mar 2002 12:25:16
Message: <3c8e39fc@news.povray.org>
Hi,

> > since it would have blocked the backlight.
> no it wouldn't...  it's a shadowless light_source, it doens't get blocked
:)

Aha? I must admit that I use shadowless lights rather seldom (not really
realistic). I thought it just doesn't cast shadows but can be hidden by
other objects. I didn't know that it shines -through- objects.... funny.

> > Looks a bit washed out IMHO.
> I like it!

It's yours ;-)

> > Next test will be with radiosity.
> Will be much slower and the results won't be much different I think...

Slower for sure.
What I can see up to now (1/3rd) doesn't really differ from your
version.....

regards
SY


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