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Hi everybody,
What do you think about this?
I'm not very happy with the bottom of the big stone on the top of the
columns: it looks not rough enough.
Any idea how I can change this without increasing the roughness on the
edges?
Its an isosurface:
#declare platenorm=function{pigment{granite scale 2}}
#local a=4;
#local b=4;
#local c=4;
#local ra = 1/1.1;
#local rb = 1/.15;
#local rc = 1/1.1;
function
{
sqrt((x*ra)^a+(y*rb)^b+(z*rc)^c) - 1
+ 2*0.15*platenorm(x,y,z)
}
The scene took 3h to render on an Athlon 500MHz in 640x480, AA.3, medium
qual. radiosity (Rad. settings cut and pasted from the megapov .6
documentation)
bye, Lutz
Post a reply to this message
Attachments:
Download 'mystery.21_curves.jpg' (57 KB)
Preview of image 'mystery.21_curves.jpg'
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From: Dave Blandston
Subject: Re: desert temple - mystery.21_curves.jpg [1/1]
Date: 26 Aug 2001 17:51:25
Message: <3b896f5d$1@news.povray.org>
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Well, I think it's great! I can't help you with the stone, but what I really
like about this picture (besides the overall mood - it's fantastic) is the
glowing green sphere. Would you be willing to share it with the group? I
have a scene that also uses a glowing green sphere, but mine isn't nearly as
good as yours!
Regards,
Dave Blandston
"Lutz-Peter Hooge" <lpv### [at] gmx de> wrote in message
news:MPG.15f373659ab73c2989680@news.povray.org...
> Hi everybody,
>
> What do you think about this?
Post a reply to this message
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In article <3b896f5d$1@news.povray.org>, gra### [at] earthlinknet
says...
> Well, I think it's great! I can't help you with the stone, but what I really
> like about this picture (besides the overall mood - it's fantastic) is the
> glowing green sphere. Would you be willing to share it with the group?
Well it is really easy, I created it more or less by accident and was
surprised how good it was looking myself
#macro lightsphere(COLOR)
light_source
{
<0,0,0>
color rgb COLOR
fade_distance 3
fade_power 3
looks_like
{
sphere
{
<0,0,0>,.5
hollow
texture
{
pigment{color rgb COLOR transmit .9}
finish
{
specular .3 roughness .004
ambient .5 diffuse .5
reflection .2}
}
interior
{
ior 2
media
{
emission rgb 5
density
{
spherical
scale .5
color_map
{
[0.0 color rgb 0]
[0.5 color rgb 0]
[0.7 color rgb COLOR]
[1.0 color rgb 1]
}
}
}
}
}
}
}
#end
Post a reply to this message
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From: Dave Blandston
Subject: Re: desert temple - mystery.21_curves.jpg [1/1]
Date: 26 Aug 2001 20:11:42
Message: <3b89903e@news.povray.org>
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Cool - Thanks!
"Lutz-Peter Hooge" <lpv### [at] gmxde> wrote in message
news:MPG.15f38fd82cfb629989681@news.povray.org...
> In article <3b896f5d$1@news.povray.org>, gra### [at] earthlinknet
> says...
> > Well, I think it's great! I can't help you with the stone, but what I
really
> > like about this picture (besides the overall mood - it's fantastic) is
the
> > glowing green sphere. Would you be willing to share it with the group?
>
> Well it is really easy, I created it more or less by accident and was
> surprised how good it was looking myself
>
> #macro lightsphere(COLOR)
> light_source
>
> <0,0,0>
> color rgb COLOR
>
> fade_distance 3
> fade_power 3
> looks_like
> {
> sphere
> {
> <0,0,0>,.5
> hollow
> texture
> {
> pigment{color rgb COLOR transmit .9}
> finish
> {
> specular .3 roughness .004
> ambient .5 diffuse .5
> reflection .2}
> }
>
> interior
> {
> ior 2
> media
> {
> emission rgb 5
> density
> {
> spherical
> scale .5
> color_map
> {
> [0.0 color rgb 0]
> [0.5 color rgb 0]
> [0.7 color rgb COLOR]
> [1.0 color rgb 1]
> }
> }
> }
> }
> }
> }
> }
> #end
Post a reply to this message
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On Sun, 26 Aug 2001 21:58:52 +0200, Lutz-Peter Hooge wrote:
>Hi everybody,
>
>What do you think about this?
A real good looking image.
--
Cheers
Steve email mailto:ste### [at] zeroppsuklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
12:27am up 44 days, 2:32, 2 users, load average: 1.04, 1.14, 1.26
Post a reply to this message
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From: Marc-Hendrik Bremer
Subject: Re: desert temple - mystery.21_curves.jpg [1/1]
Date: 28 Aug 2001 03:49:46
Message: <3b8b4d1a@news.povray.org>
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Lutz-Peter Hooge schrieb in Nachricht ...
>I'm not very happy with the bottom of the big stone on the top of the
>columns: it looks not rough enough.
Just an idea: are you sure, that your contained_by-object does not cut of
the roughness at the bottom?
If that's not the case, you could add the pigment directly to the
y-component (like in +((y+platenorm(x,y,z)*0.1)*rb)^b) of the formula, too.
That might work as well.
Marc-Hendrik
Post a reply to this message
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In article <3b8b4d1a@news.povray.org>, Mar### [at] t-onlinede
says...
> Just an idea: are you sure, that your contained_by-object does not cut of
> the roughness at the bottom?
Definitely not. I think it has something to do with the derivative of the
function beeing much higher in y direction.
> If that's not the case, you could add the pigment directly to the
> y-component (like in +((y+platenorm(x,y,z)*0.1)*rb)^b) of the formula, too.
Thanks, this might work...will try it.
Lutz
Post a reply to this message
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In article <3b8b4d1a@news.povray.org>, Mar### [at] t-onlinede
says...
> y-component (like in +((y+platenorm(x,y,z)*0.1)*rb)^b) of the formula, too.
> That might work as well.
Yep, it worked. Although I'm not sure the difference will be very
visible, because of the ligthing.
The scene is now "final" I think, I added some small details and media
clouds(scattering)...unfortunaltely it now renders at 1PPS ;-(
Lutz
Post a reply to this message
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Cool scene. Kinda reminds me of that Mario 64 level.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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