VRay realtime rendering preview

Technology preview of an early version of VRay standalone realtime rendering. Shown at the Chaos Group usergroup meeting at Siggraph 2007.

This was shot with a hand held Fujifilm FinePix F30 compact still camera, so please excuse the less than great quality.

Category:

Film & Animation

Tags:

• VRay
• V-Ray
• ChaosGroup
• Rendering

[Spandexiscool]

omg.. imagine when one day games are done like this, realtime rendering... things could look so real @.@

[raisszadeh]

wooooooow it's more like a dream

[tasso84]

@SolsticeHalcyon ...you really know a lot of things about render (I'm not ironic) but to be more precise, vray IS NOT an unbiased engine...for a lot of reasons...first of all you decide the numeber of bounces made by light...in real world they are unlimited as you may know....maxwell render is a real UNBIASED (not unbaised like you wrote) engine!

[tamizananbu]

yaaa dram only.... just dream only..

[SolsticeHalcyon]

@Spandexiscool If this is sarcasm then let me give you a bit of advice. Though the rendering method seen in the video doesn't look as impressive as your favorite DirectX 11 video game, it's way WAY more accurate. Games don't do "ray tracing". Games don't do "path tracing". Games don't do photon emission and caustics. Look up the terms on Wikipedia, there's no excuse to be ignorant in the information age. Games render in a biased way because they have to be interactive (fast).

[SolsticeHalcyon]

@crakrjakful And although Cryengine looks impressive, it's still a highly biased renderer ... it has to be. Certain data must be precomputed and interpolated (such as indirect/bounce lighting), and though the results look great ... it's not scientifically accurate. Unbaised GPU-accelerated renderers such as Octane Render, mental images Iray, etc, yes these take a little longer to render a frame (a few minutes for a decent result), but they are UNBAISED which is the important thing to note here.

[SolsticeHalcyon]

@crakrjakful Cryengine is a game engine and is therefore tuned specifically to run on specific graphics cards using specific graphics APIs. 3D rendering is run ENTIRELY on the CPU, and is not at all GPU assisted; it's called software rendering for a reason. Things are changing though and 3D work is finally being assisted by the GPU, which is amazing. Yes the 3D rendering industry is behind in terms of utilizing the impressive parallel power of the GPU, but it's happening.

[SolsticeHalcyon]

@gobacktorussia A basic example of the difference is that games use screen-based ambient occlusion while raytraced ambient occlusion is used for 3D work; not only is it slower to calculate, but remember, the GPU never helps the CPU, so that's why 3D rendering is VERY slow and games are extremely FAST; they are hardware accelerated. Games use tricks like baked lighting and faked reflections (through maps) while 3D work uses raytraced (and glossy) reflections/refractions, indirect lighting, etc.

[SolsticeHalcyon]

@gobacktorussia Software renderers (like Vray, mental ray, etc) attempt to approximate reality by using far more advanced algorithms than games do. Also, the GPU assists the CPU heavily in games, but the GPU does NOTHING at all during 3D rendering. Things are changing though. Examples: Mental images Iray and Octane Render both use the GPU to produce unbiased images in minutes that would have taken hours on a CPU using traditional "approximations" like interpolation of photon emission.

[gobacktorussia]

@Spandexiscool agreed, but what always confuses me is how easily games like crysis are rendered, like at 30fps+ for me, if vray 1.5 takes 5 mins to render a scene at the same res, cryengine is rendering 9000 times faster!! i have never understood the difference between rendering styles, and gaming and workstation cards.