vdek

I don't think its for games, so don't worry it most likely won't affect you or most of the users on this site.

WiR3D-kNiGhT

not for the next 4 years anyway, then it might

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It also helps with physics, shadows, ambient occlusion, standard occlusion, reflections, refractions, transparency, and more. Even many high end games will not have proper reflections (e.g. You won't see the side mirror of a car in the reflection on the car's side windows), and most reflections use low-res render targets, so they look pixelated. This is the same issue with shadows that look very blocky or pixelated on the edges, and why often things in the far distance don't cast shadows.

Games will look MUCH better once ray-tracing is standard (not anytime soon), and a lot of the tricks that must be done now to achieve realism will no longer be required (at the cost of performance of course).

Consider that right now to do a reflection means that anything in that reflection must be rendered twice. Shadow mapping requires the same thing. So ray-tracing does have some optimization over the standard techniques currently in use.

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003

The implications of pixel perfect lighting are massive. First, developers don't have to "program" anything for reflections and refractions to work, they just "do" with ray tracing. Just create a light source and the rest is done for you, so to say.

It will massively transform fluid surface realism, reflections and refractions which in turn allow other aspects to be as they would in the real world.

vdek

Try 10+

lordikon

Probably for full scene ray tracing. But we could start using aspects of it for some stuff sooner; A hybrid, using both rasterization and ray-tracing.

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Jarhead

I beg to differ. Photorealism means absolutely nothing if the environment only looks real but behaves wrong. This is Quake 4 ray traced with correctly behaving water, shadows, and perfect collision.



The test was done on an Intel QX6700 and achieved 16 fps in 256x256. I have to say it blows my mind that this guy bet his career on Intel making an amazing GPU.
http://www.pcper.com/article.php?aid...e=expert&pid=4

Even my crossfired 2900XT's could blow that away if they only had the API to do it. Would it look photo-realistic? Nope. Would it be high res? Nope. The in-game textures are still low detail, and the character models could stand to be enhanced. Would any of it matter? Nope.

Anything three years old(native to DX9) or so could probably have this done and run well on most systems sold today. It would drive graphics card sales because instead of one really powerful card, two medium ones would actually be a considerably better buy because ray tracing scales so much better than rasterization.

Imagine the possibilities if applied to an engine like Source, Lithtech, or even IW tech. Heck go with the Prince of Persia art style, cell shading, etc., and it could probably even be 1080p at close to 30fps which is playable.

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dieanotherday

so how do i use thsi w/ crysis?

Ecchi-BANZAII!!!

It makes Gran Turismo 5

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WeirdSexy

Can someone explain to me how ray tracing could help physics and collision? like no more bad clipping?

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