POV-Ray : Newsgroups : povray.programming : Povray 4? wish list : Re: Povray 4? wish list Server Time
29 Jul 2024 08:10:28 EDT (-0400)
  Re: Povray 4? wish list  
From: Angelo 'kENpEX' Pesce
Date: 5 Dec 2001 19:11:41
Message: <3c0eb7da.15786579@news.povray.org>
Ah, by the way, I want to repeat here that I'm not really saying: pov
should be as fast or be like *paste_here_another_good_renderer*, I'm
just saying, let pay more attention to speed issue

>>  Actually I made a little test today with povray. I downloaded a really big
>>model from 3dcafe.com: http://www.3dcafe.com/models/dragon3.zip
>>  It has 100400 triangles (50204 vertices), which is a nice size to test with.
>Really big? It does not seem so big to me, one of my first models
>yeeeeeeeears ago (a c64, done on a p90, 8mb of ram with lightwave 4)
>was only 50% of that size... Btw it's still something to test...
>>I converted it to mesh2 with 3DWin.
>>  I made this image with povray 3.5:
>>http://www.cs.tut.fi/~warp/dragon.png
>>
>>  It took 10 minutes 30 seconds to render in my 1.2GHz Athlon.
>>  Please note the blurred-reflecting floor (which you say is not possible
>>with povray 3.5).
>Well, as U say in your faq (i believe it's yours, am I right), it is
>possible using a trick... As U surely know many things are possible in
>this world... For example, I could do oop with plain C, but I don't
>say that C is an OOP language or that is supports OOP...
>
>>  If I turn off the blur of the reflection, then the scene takes only
>>4 minutes to render.
>>  If I turn off the area lights, then it takes just 1 minute 30 seconds to
>>render. The resulting image is the following:
>>http://www.cs.tut.fi/~warp/dragon_simple.png
>>
>>  Carefully note the really high-quality antialiasing I used to create the
>>image (eg. clearly seen in the borders of the shadow of the model in the
>>above picture). I achieved this by using the antialiasing method 2 (with
>>method 1 the image above takes less than a minute to render, but the
>>quality of the antialiasing is visibly worse).
>>
>>  I rendered those images at 640x480 with +a0.3 +am2 +fn
>>
>>  I suppose that lightflow could reach these render times achieving at least
>>the same quality, but it would be really interesting to see some results.
>I'll try to convert that and I'll tell you the resoult ok?? Or mabye
>I'll do something else and send the scene to you, mabye with form
>(that has a support for povray output too) as I'm experimenting with
>it lately (but I've only used vivid3 to raytrace form scenes)
>
>>  The source of that scene (if you want to get the coordinates of the camera,
>>lights, floor and model) can be found at:
>>http://www.cs.tut.fi/~warp/dragon.zip
>>
>>(Note: The zip-file is 3.5 Megs in size due to the huge mesh.)


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