POV-Ray : Newsgroups : povray.binaries.images : Light on a few spheres : Re: Light on a few spheres Server Time
12 Aug 2024 21:26:37 EDT (-0400)
  Re: Light on a few spheres  
From: JC (Exether)
Date: 14 Aug 2003 02:49:30
Message: <3f3b30fa@news.povray.org>
Hugo's work impressed me and I decided to have deeped look into it, I 
found an interesting tutorial on this famous three points lighting 
technique ( http://www.3drender.com/light/3point.html ), and I tried it.
I post the result, but it's a very quick try, and not intended to look 
real. But I had been using radiosity so often, and I realised I should 
study lighting a bit more. Thanks for showing that to me.  :-)

As we're all starved from pov images and I did another render again 
inspired by Hugo, I also post a menger sponge made of spheres (160k), 
rendered with ... ahem ... radiosity. I'll also try to light it properly.

It's just to give you some stuff to chew,  ;-)

JC

Hugo Asm wrote:
> Thank you very much for all the replies!  :o)  That's encouraging.
> 
> Now, here's a surprise: There are no radiosity used in the image. I decided
> that it would be useful to practice good lighting without it. This way the
> scene won't flicker in animations (as radiosity in POV easily does) and it
> supports network rendering on a single image, which is also nice. But it
> also helped to speed up rendering and this image renders in just 35 minutes
> on my AMD 1.4 GHz. (well, time depends on the quality of focal-blur)
> 
> I'm using the general three-point-lighting technique, commonly used by
> photographers. In addition, I've worked on a little macro to .. how to say..
> enrich the built-in area_lights with some extra lights and a visible,
> glowing area. This area then reflects on the spheres so no specular/phong
> keyword is used. The spheres also have blurred reflections to further soften
> the look.
> 
> As Tek noted, the material of the spheres are not easily recognisable. I'll
> work on that.
> 
> JC wrote:
> 
>>Did you have a look at  Jaime's syslight include file?
> 
> 
> Yes, I know Jaime's macros. I haven't used them here, except all the light
> has a realistic fade-out, as was described by him.
> 
> 
> Regards,
> Hugo
> 
>


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Attachments:
Download 'three_lights.jpg' (19 KB) Download 'menger_spheres.jpg' (63 KB)

Preview of image 'three_lights.jpg'
three_lights.jpg

Preview of image 'menger_spheres.jpg'
menger_spheres.jpg


 

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