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R420 in Action?
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gsellis
Diamond Member
Not necessarily. In our context, yes, but not in real movie-haus context. There are some serious high dollar rendering cards that are involved in SD and HD production.
Needless to say, if Finding Nemo was done doing hardware render, I could not afford the card. Stuff like that starts at $5k and rapidly adds decimels. Oh, and it probably does not have a video port.
RussianSensation
Elite Member
What you mean to tell me Geforce cards cannot handle running a game like finding nemo? 🙁 lol jokes
RussianSensation
Elite Member
Well i was more asking what kind of a card could be able to play a game with graphics like finding Nemo? What is real-time exactly? like being able to change the direction the character goes at any time you want instead of prerecorded path? I am just saying the graphics in Disney movies are amazing so they had to have hardware to be able to make theM or you are saying they just did frame by frame and then simply compiled them together ordered each frame and thus formed the motion effect? ditto. I didn't think of that....
But I am saying what if you had a game like Finding Nemo and lets assume theoretically you are that fish swimming in that world in real-time, what kind of a graphics card would you need?!!!!! insane.
rbV5
Lifer
Just for an example. Pixar animation (the animation house behind Finding Nemo) has a huge renderfarm (bunch of computers hooked together) "each" frame of the movie, (which is shown for 1/24th of a second), takes anywhere from 6hours up to 90hours to render <each frame!> That doesn't include post processing or sound effects. You aren't going to do that in realtime anytime soon.
BenSkywalker
Diamond Member
On 'Finding Nemo' type visuals- the Viz work for those types of projects tends to be done on either SGI Irix machines, HP-RISC based workstations or if they are using x86 based PCs nVidia based Quadros(nVidia dominates the workstation market for x86 at this point). The final rendering that you see outputted is done using Pixar's proprietary build of RenderMan in software- currently handled by a render farm of Xeons(Finding Nemo was not done on that setup, they didn't have it yet) packing over 1K processors IIRC.
What kind of vid card would it take to handle Nemo- the big problem with it would be the radiosity effects in the movie. It will be years before we see a card that can handle even basic levels of radiosity in hardware, and it tends to be more computationaly intensive then rendering the entire rest of the scene.
For everything outside of the radiosity current nV hardware could get pretty close although not in real time, not remotely close to anything resembling real time(FP32 is needed with that level of shaders). ATi could do an approximation but you would end up seeing some artifacts from their limited precission. NV40 should be much better in that respect(PS 3.0 support), although the speed of it will still be far too slow. DXNext level hardware from both ATi and nVidia should actually be able to show us something that looks very close in real time- although it won't be at anywhere near the film resolution of the movie it could compare decently to the DVD(minus radiosity).
GPUs are already starting to show advantages over CPUs for off line rendering- it won't be too much longer before they are replacing CPUs for a good deal of the rendering process.
If you want real time with that level of detail you use procedural textures, shaders, and higher order surfaces. Offline CGI does things stupidly talking in relative terms, but they want absolutely no compromises and have the money to spend to assure it.
One of the big demands there is the level of resolution they are dealing with, film. For DVD level quality you could reduce their loads by a couple orders of magnitude.
What kind of vid card would it take to handle Nemo- the big problem with it would be the radiosity effects in the movie. It will be years before we see a card that can handle even basic levels of radiosity in hardware, and it tends to be more computationaly intensive then rendering the entire rest of the scene.
For everything outside of the radiosity current nV hardware could get pretty close although not in real time, not remotely close to anything resembling real time(FP32 is needed with that level of shaders). ATi could do an approximation but you would end up seeing some artifacts from their limited precission. NV40 should be much better in that respect(PS 3.0 support), although the speed of it will still be far too slow. DXNext level hardware from both ATi and nVidia should actually be able to show us something that looks very close in real time- although it won't be at anywhere near the film resolution of the movie it could compare decently to the DVD(minus radiosity).
GPUs are already starting to show advantages over CPUs for off line rendering- it won't be too much longer before they are replacing CPUs for a good deal of the rendering process.
If you want real time with that level of detail you use procedural textures, shaders, and higher order surfaces. Offline CGI does things stupidly talking in relative terms, but they want absolutely no compromises and have the money to spend to assure it.
One of the big demands there is the level of resolution they are dealing with, film. For DVD level quality you could reduce their loads by a couple orders of magnitude.
BenSkywalker
Diamond Member
I'm not sure on the exact pixel specifications but 8,000x6,000 w/16x stochastic AA isn't out of line for film rendering(effectively 1280,000x96,000)
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