RavynousHunter on 14/8/2009 at 01:00
Of course, there are computers that use animated ray tracing already, like the ones that did the CG on the last two Transformers movies. The thing is, to do that level of animation, you need quite a bit of machine power, and even with all the power they had, it took them days to render even the shortest of scenes.
(
http://en.wikipedia.org/wiki/Ray_tracing_%28graphics%29) The Wikipedia article contains some examples of ray tracing. The one with the wine glasses and dice took
560 hours to ray-trace.
Of course, that's not to say that in a few years won't be seeing more of ray tracing in gaming. What with the constant increase of processor power, number of cores, memory, and video card power, it could be possible, though probably very, VERY impractical for quite some time.
Fafhrd on 14/8/2009 at 03:06
Quote:
Except Cryengine 3 is really "2.25" - an evolved, optimised multi-platform version of the Crysis 1 engine.
This.
If this lighting model works on the 360 and PS3 builds, we can maybe expect to not need an octocore CPU and Quad 4890s to run it at 30fps.
gunsmoke on 18/8/2009 at 00:05
Might wanna fix yo' link, bruh.
Phatose on 18/8/2009 at 03:24
That wikipedia one wasn't just a raytrace, by any stretch of the imagination. Large amounts of the render time is no doubt due to photon mapping for the caustics. You're probably also looking at quite a few passes specifically for high quality radiosity, and the thing was no doubt rendered with high AA and high resolutions.
Realistically, the photon map is a huge time eater, and the render was done at absurd settings where the time to quality ratio is a non-concern.
gunsmoke on 18/8/2009 at 15:05
What is render time, and why does it take so long? :confused:
Renzatic on 18/8/2009 at 15:46
Render Time: when your graphics card/CPU takes the information being throw at it to make a pretty picture.
It obviously doesn't always take a long time to do. But when you start getting into high end photorealistic rendering algorithms like photon mapping and multibounce radiosity, it takes a good bit for the CPU to calculate the various data to produce a single scene.
I'm also kinda wondering why that dice and wine glass scene took 560 hours to render out. Did they use some old 90's renderer like Povray to produce the scene? I'm sure any modern renderer, like V-Ray and Mental Ray for instance, could do that same scene in about 8 hours.
SubJeff on 18/8/2009 at 17:14
What is amazing me is this is supposed to run on X360 and PS3. How are they managing that given the hardware limitations? You needed a monster PC to run Crysis at top settings so...
swaaye on 18/8/2009 at 20:24
We'll just have to see how it runs and looks on that hardware when it's actually a shipping product, won't we? :)
gunsmoke on 18/8/2009 at 20:54
Quote Posted by Renzatic
Render Time: when your graphics card/CPU takes the information being throw at it to make a pretty picture.
It obviously doesn't always take a long time to do. But when you start getting into high end photorealistic rendering algorithms like photon mapping and multibounce radiosity, it takes a good bit for the CPU to calculate the various data to produce a single scene.
I figured that was what it meant. I was just confused because I had no idea one fucking frame would take that long to render. Thanks.
