POV-Ray : Newsgroups : povray.general : No Recieve Shadows? Server Time
7 Nov 2024 11:35:06 EST (-0500)
  No Recieve Shadows? (Message 1 to 5 of 5)  
From: Chris Becker
Subject: No Recieve Shadows?
Date: 6 Mar 2002 23:18:26
Message: <3c86ea12$1@news.povray.org>
Here's my situation,  I have a cloud plain and I have a house. Inside the
house are several lights which cast shadows. They also have fade_power and
fade_distance modifiers. Now, my render time is extremely slow because the
house is rather complex. However, I take out the clouds and the render time
is pretty fast. The reason for this change, I think, is that POV-Ray is
testing for shadows of the house on the clouds, hence doing many tests
against a complex object. Is there any way to tell POV-Ray to not test the
plane for shadows? Or is there a trick to get around this somehow?

Thanks in advance!


Post a reply to this message

From: Mark Wagner
Subject: Re: No Recieve Shadows?
Date: 6 Mar 2002 23:31:44
Message: <3c86ed30@news.povray.org>
Chris Becker wrote in message <3c86ea12$1@news.povray.org>...
>Here's my situation,  I have a cloud plain and I have a house. Inside the
>house are several lights which cast shadows. They also have fade_power and
>fade_distance modifiers. Now, my render time is extremely slow because the
>house is rather complex. However, I take out the clouds and the render time
>is pretty fast. The reason for this change, I think, is that POV-Ray is
>testing for shadows of the house on the clouds, hence doing many tests
>against a complex object. Is there any way to tell POV-Ray to not test the
>plane for shadows? Or is there a trick to get around this somehow?

If you don't want the clouds to cast shadows, you can simply specify
no_shadow on the cloud object.

--
Mark


Post a reply to this message

From: Chris Becker
Subject: Re: No Recieve Shadows?
Date: 7 Mar 2002 00:47:30
Message: <3c86fef2@news.povray.org>
It's the other way around, I don't want them to recieve shadows, like the
sky_sphere does not recieve a shadow from other objects.

"Mark Wagner" <mar### [at] gtenet> wrote in message
news:3c86ed30@news.povray.org...
> Chris Becker wrote in message <3c86ea12$1@news.povray.org>...
> >Here's my situation,  I have a cloud plain and I have a house. Inside the
> >house are several lights which cast shadows. They also have fade_power
and
> >fade_distance modifiers. Now, my render time is extremely slow because
the
> >house is rather complex. However, I take out the clouds and the render
time
> >is pretty fast. The reason for this change, I think, is that POV-Ray is
> >testing for shadows of the house on the clouds, hence doing many tests
> >against a complex object. Is there any way to tell POV-Ray to not test
the
> >plane for shadows? Or is there a trick to get around this somehow?
>
> If you don't want the clouds to cast shadows, you can simply specify
> no_shadow on the cloud object.
>
> --
> Mark
>
>


Post a reply to this message

From: Ari-Matti Leppanen
Subject: Re: No Recieve Shadows?
Date: 7 Mar 2002 01:06:03
Message: <3c87034b$1@news.povray.org>
"Chris Becker" <cmb### [at] ritedu> wrote in message
news:3c86ea12$1@news.povray.org...
> Is there any way to tell POV-Ray to not test the plane for
> shadows? Or is there a trick to get around this somehow?

Lightgroups? One group that contains the house and maybe the ground if
there's light coming out of the windows. The lights in house will cast
shadows only on objects inside the group, but I don't know if it's any
faster.

Ari-Matti


Post a reply to this message

From: Chris Becker
Subject: Re: No Recieve Shadows?
Date: 7 Mar 2002 02:53:08
Message: <3c871c64$1@news.povray.org>
Yes, that did the trick!! Thanks so much!

"Ari-Matti Leppanen" <ari### [at] tutfi> wrote in message
news:3c87034b$1@news.povray.org...
>
> "Chris Becker" <cmb### [at] ritedu> wrote in message
> news:3c86ea12$1@news.povray.org...
> > Is there any way to tell POV-Ray to not test the plane for
> > shadows? Or is there a trick to get around this somehow?
>
> Lightgroups? One group that contains the house and maybe the ground if
> there's light coming out of the windows. The lights in house will cast
> shadows only on objects inside the group, but I don't know if it's any
> faster.
>
> Ari-Matti
>
>


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.