Realtime Rendering with vray

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Realtime Rendering with vray // Tech Forum

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Post by nelson // Oct 30, 2008, 1:33pm

nelson
Total Posts: 4
A couple of weeks ago I bought the vray renderer for trueSpace 7.6. I was under the impression that I would be able to see reflections and refractions in real time. I have been working with this for a couple of weeks now and I don't see any difference in the real-time renderer.


Did I misunderstand something or am I doing something wrong? I am happy with the vray because I find the material editor a lot easier to use, but I really expected to see a difference in the rendering.

Post by frootee // Oct 30, 2008, 1:41pm

frootee
Total Posts: 2667
pic
hey nelson.

The realtime renderer is DirectX. VRay is an offline renderer, so it will not alter the appearance of real time rendering.


later!


Froo

Post by TomG // Oct 31, 2008, 4:59am

TomG
Total Posts: 3397
V-Ray is an offline renderer. It adds offline rendering to the workspace side - without V-Ray, you need to switch to the Model side in order to get access to an offline renderer. V-Ray of course adds to the workspace side, but NOT to the real-time renderer, which remains unchanged.


Currently, no technology offers real-time reflection and refraction, as those are too computationally expensive to be able to do in real-time and it takes offline rendering to calculate.


HTH!

Tom

Post by mrbones // Oct 31, 2008, 6:02pm

mrbones
Total Posts: 1280
pic
Are you sure about that? Check Dbokons Glass and metal dx9 shaders.




Currently, no technology offers real-time reflection and refraction, as those are too computationally expensive to be able to do in real-time and it takes offline rendering to calculate.

HTH!
Tom

Post by robert // Nov 2, 2008, 5:20am

robert
Total Posts: 609
pic
Here's some trickery I did using the tS camera and real-time texture system. http://forums1.caligari.com/truespace/showthread.php?t=6946

Post by TomG // Nov 3, 2008, 4:19am

TomG
Total Posts: 3397
Yes, the glass and metal shaders are "simulated" reflections and refractions, they do the job very nicely, but they are still not true raytraced reflections and refractions :) Whether they are good enough for the image / animation / scene in question will be up to the artist, but it's still not entirely the same as the original question about having real-time reflection and refraction. Primarily though I think the original person was wondering why a regular shader with reflection or refraction doesn't show up with that effect in real-time on purchasing V-Ray, and the answer is that those effects aren't calculated at all in real-time without some special real-time code to simulate / emulate / create the effect.


HTH!

Tom

Post by spacekdet // Nov 3, 2008, 6:11am

spacekdet
Total Posts: 1360
pic
I think you guys are missing the point.
It sounds like the OP needs help setting up via the Package Manager and initiating a render using VRay.

If it's been 'a couple of weeks' and he still hasn't gotten a render there's something hinky going on.

Post by TomG // Nov 3, 2008, 7:26am

TomG
Total Posts: 3397
It could be -the question was that he saw no difference in his real-time renders, but I was thinking they had it working for offline renders. Definitely worth asking though :)


So, the question goes to Nelson, do you have V-Ray up and running for the offline renders that you make? V-Ray is an offline engine, adding it to trueSpace lets you use it in place of Lightworks or Virtualight but doesn't change your real-time engines at all. If you do not have V-Ray up and running for your offline engines, let us know and plenty people here are able to help!


Thanks!

Tom
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