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*Pete*
07-25-2005, 04:26 AM
everytime i read about 3d cards for lightwave i see that they wont help with rendering...is this true??

isnt there a card that works for lightwave's render engine?? and if no, why not??

tibes
07-25-2005, 07:16 AM
This is true of almost all packages (there is some specialised hardware that will help with rendering but for most purposes it's not worthwhile.. yet). Renderers calculate images using the CPU, not the graphics card. Graphics cards are very specialised and rendering capabilities, techniques and results will varying between chipsets. This would be useless for 3D rendering since you need consistent results across the board. Additionally realtime rendering employs less-exact workarounds than the algorithms that might be used in a raytraced animation (for example).

Do some more reading, realtime graphics card based rendering is very different than the sort of rendering coming out of Lightwave, Mental Ray, etc.

*Pete*
07-25-2005, 02:48 PM
ty Tibes.

i wasnt really looking for a card for realtime rendering use, just sought a way out of the 24 hour per frame render passes.

i quess having multiple cpu's is the only option then?

Mr. Tinker
07-25-2005, 11:08 PM
Graphics cards use a 3D rendering method called OpenGL and/or DirectX. Animation programs use a rendering method called raytracing. Since the OpenGl/DirectX more widely used, there has been enough mainstream demand for dedicated hardware acceleration solutions. The latter has not seen the same demand. Fortunately, there is something on the horizon:

http://www.saarcor.de/

blaqDeaph
07-25-2005, 11:16 PM
ty Tibes.

i wasnt really looking for a card for realtime rendering use, just sought a way out of the 24 hour per frame render passes.

i quess having multiple cpu's is the only option then?

That, or more RAM, try increasing the segment limit so that LW doesnt render in segments. This slows the render time heaps.

Or else, you can get FPrime and do a little compositing work ^.^

tibes
07-25-2005, 11:34 PM
i wasnt really looking for a card for realtime rendering use, just sought a way out of the 24 hour per frame render passes.

Sure. The reason I mentioned it was the graphics cards are designed for realtime use. They're not intended to be used for rendering out animation. So the features of every graphics card are very much targetted towards rendering out frames at realtime levels, something not particularly useful for the sort of stuff created in major 3D packages (unless for the purposes of games :) )

Nu Visual Science
07-25-2005, 11:53 PM
Seems like 8.5 is a step towards using hardware to render ;)

*Pete*
07-27-2005, 04:39 PM
thanks guys, i understand now why 3d cards wouldnt work (as long they are opengl, right?)

but.....would something like this work??

http://store.artvps.com/merchantrd6400iii.html
i believe it is pretty much as a "second" computer more than a graphics card....im a newbie to the technical hardware stuff.

3DDave
07-27-2005, 07:07 PM
Take a look at FPrime from Worley.

NanoGator
07-27-2005, 08:23 PM
It's not the same, but for the cost of a professional card, you could buy a cheap bare-bones machine and set up Screamernet. Okay, it won't help with test renders (FPRIME is great for that...) but for getting the total render done quickly, it's not a bad ways to go.

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