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Pentium
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Last Login: 04/09/2008 18:17:19
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I really do think that now is the time for Ray-Tracing (Radiosity) to take over from current graphics cards.
Current cards rely on making object look like they are in a scene but with todays computing power it is possible to 'ray-trace' in real time so that the scene is more alive. i.e. it doens' have shadow maps etc because they are part of the scene. Objects reflect on each other, shadows are soft and the graphics process is the otherway around, the objects are put into a scene rather than the scene put onto objects.
Anyway, here are some demos I stumbled accross whilst looking for 3d fractals
http://dee.cz/ ... and, an old link which requires at least an ATI 9500 card! but doesn't require installation http://dee.cz/rrb/RRBugs.rar
gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
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Pentium
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Last Login: 28/11/2007 12:11:27
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errrrrrrrm thats what AMD/ATI are working on now isnt it spedders ??  
cheers Ken
keep your mouth closed and peeps might THINK your prat, open it and theyll KNOW you are O_O
AMD 4600 X 2 @ 2.4
4 GIG 6400
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jetway AM2 crapware board
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Altec Lansing 221s
other rigs :-
numerous constantly morphing !!  
xp pro, vista ultimate, linux multi boot wrecker  doing battle with several flavours of linux at the mo 
oh and EiSYSTEM lappy for when i cant be bothered to get off the couch !!
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5V4G
Group: Moderators
Last Login: 02/08/2008 01:43:14
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Hmm. My 256k video card only does black and white...
Oldphart:The original grumpy pedant!
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Pentium
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Last Login: 2 days ago @ 19:41:54
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| I'm not convinced that ray tracing and radiosity are quite the same thing. Radiosity is probably better described as a 'lighting model' or even a 'texture effect' that can be applied to ray traced scenes, but also to scenes rendered 'conventionally' (as seen in most 3D games). The downsides of radiosity, and particularly of ray tracing, are their high computational expense compared to the extra eye-candy and realistic detail they can supply. There are some reasonably efficient radiosity algorithms for GPUs, but I have no idea what plans MS, AMD and NV have to support them. (I haven't really looked, to be honest) Ray tracing (as the term is normally used) is very inefficient compared to current rendering algorithms, so I'd be surprised to see it showing up in force any time soon in commercial DX games, but developers already have the option of writing custom shaders (programs that run in pixel pipelines) that are effectively genuine ray tracers. They just don't bother to do it very often at the moment because there are easier ways to skin the same cat and it's likely to murder frame rates, particularly at higher resolutions. Its main use is in effects like accurate reflections and refractions, and reflections of refractions, and refractions of reflections of refractions etc etc. Nice glass and water effects, for example, but is it worth it? Not sure if I've cleared that up, or just made it more confusing. 
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Pentium
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Last Login: 04/09/2008 18:17:19
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A good article this week. It does show taht it is possible if a Quad core CPU can ray trace Quake at 256x256@15fps. Many PS3/XBOX games are still 850x480@30fps (or at least played by a lot of people at that resolution) which is only just over 10x the power requirement.
It seems to me that the PS3 should be able to give acceptable results with the right software and possible even reach the 'intersection point' mentioned for ray-tracing vs rasterisation. This intersection point is probably a little lower for the PS3 because its processors are not tuned directly at rasterisation.
Anyway, a good read!
gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
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Pentium
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Last Login: Yesterday @ 23:34:27
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Pentium
Group: Forum Members
Last Login: 04/09/2008 18:17:19
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I always forget about youtube.
14 cell processors shown here with 4xSuper Sampling at 720p, although it is quite a slow frame rate.
http://uk.youtube.com/watch?v=oLte5f34ya8
Edit: even better, three PS3s (I think) with a ray(?)/raster algorithm http://uk.youtube.com/watch?v=8B2-9rNBvIg. Looks much nicer!
gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
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Pentium
Group: Forum Members
Last Login: Yesterday @ 23:34:27
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| Hmmm, yeah marks article was well good. Reading between the lines I'm quietly confident that Intel can taste the Graphics crown with Laughabee. It will all be in the hands of the software writers of course. There is sygnificantly more muscle gonna be locked up in the laughabee Via vertual cores which the nehalem will support. My self I think laughabee is gonna be highly tangable to the nehalem. why I can even see Intel moving the goal posts for the Laughabee to sit bang in the same board as a nehalem via a four socket paltform. Raytracing here we come. Although I hope it will be done a little better than those 2 crude PS3 examples.
 The Lost Artifact is not lost. Why? Because I have it.
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 Posted 04/06/2008 18:05:23 |
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