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Vray radiosity vs native truesapce
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These pages are a copy of the official truespace forums prior to their removal somewhere around 2011.
They are retained here for archive purposes only.
Vray radiosity vs native truesapce // Roundtable
Post by jayr // Apr 10, 2007, 4:12am
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jayr
Total Posts: 1074
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how much faster is vray compared with truespace? i've seen the render times prodigy and other have quoted, can anyone give me the time for the same/ similar render in truespace? |
Post by prodigy // Apr 10, 2007, 4:16am
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prodigy
Total Posts: 3029
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Vray have just a little problem..
Lightworks works much much faster than Vray with transparencys..
I will make a example..
but in Global illuminaiton, reflections? Lightworks cant win.. be sure of that..
Give me a few minutes and i will show you |
Post by prodigy // Apr 10, 2007, 4:36am
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prodigy
Total Posts: 3029
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Here it is..
Its a simple scene with few balls, default glass settings..
Lightworks ~ 11 Seconds
Vray ~ 24 sec
Dont know if is something internal of vray or can be optimized on next versions of TS Vray, but Lightworks wins in this battle... :D
See is a very small Render 342x256 and it takes more than the double.
Imagine on a large scene with more quality.. |
Post by e-graffiti // Apr 10, 2007, 4:58am
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e-graffiti
Total Posts: 171
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If your question is specific to VRay Global illumination vs tS Radiosity which is another Global illumination (GI) technique, my experience is that VRay GI could can provide better results faster than Radiosity (but of course it depends on setting). So you may want to clarify if you are speaking of global illumination or local illumination (which is not concerned with light bounce through out scene). |
Post by prodigy // Apr 10, 2007, 5:15am
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prodigy
Total Posts: 3029
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About Radiosity vs Global Illumination, NEVER NEVER NEVER doubt that..
Why Vray GI beats Radiosity??
1) cos you can easyly save the GI and load without problems ( i remember have lot of problems with Radiosity
2) Cos you can see fastest and better results in minutes.. Radiosity needs hours to get a good quality and may you can find ugly things too.. ;)
3) Cos the Quality of tsGI is better than tsRadiosity.
4) cos you can move objects on a GI map (causing few artifacts) but on a Radiosity you must start again.. (For that the speed of Vray beats on this point too)
5) Cos with Vray you can get Caustics Radiosity doesnt have.
If im wrong in any point plz, correct me.. ;) |
Post by jayr // Apr 10, 2007, 5:18am
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jayr
Total Posts: 1074
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i was talking about GI, what i really wanted to know is the time difference, is it seconds or better, does vray 'calculate' the scene in a similar way to truespace before rendering? |
Post by prodigy // Apr 10, 2007, 5:26am
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prodigy
Total Posts: 3029
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if you press RENDER, vray starts to calculate (if you enable GI)
1) The global Illumination
2) the bounces of lights (1st and 2nd)
That takes few seconds..Radiosity calculation tooks much much longer than few seconds.
On a very very complex scene the Gi calculation doestn took much longer than 10 ~ 20 minutes. Complex scene means full of objects boucing lights, many light sources.. bla blabla..
On a common scene.. 10 seconds to 1 min.
When it finish the gi calc.. vray starts to render theimage..
You can save the GI calc (good for big scenes) and when you load.Vray just start to render the final image..
A good trick is Render a 800x600 Image and save the GI calc, and finaly render on a bigger image size.. :) |
Post by jayr // Apr 10, 2007, 5:36am
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jayr
Total Posts: 1074
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cool thanks prodigy, it sounds a LOT faster, that was the kind of info i was looking for |
Post by prodigy // Apr 10, 2007, 5:53am
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prodigy
Total Posts: 3029
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Let me show you...
here is my Speed model challenge Firearm scene..
First to show you how long it tooks calculate the scene. From the Start..
I save the GI calc.. and you can see.. when i load i can make a zoom without need recalculate the scene again.. just load the Gi map and thats it.. Start to rendeder..
HO By the way.. is on Mid quality. its more than enough for me.. but you can select Low and Very low quality and the calculation is much faster than the mid.. (thats good for tests) |
Post by Steinie // Apr 10, 2007, 6:19am
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Steinie
Total Posts: 3667
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Hey this should be over in Tutorium! Some good stuff here.
and Tricks of the Trade...
"A good trick is Render a 800x600 Image and save the GI calc, and finaly render on a bigger image size." |
Post by jayr // Apr 10, 2007, 9:43am
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jayr
Total Posts: 1074
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thats brilliant thanks prodigy, it's those sort of tips that save you hours of pointless rendering! Think i've made my mind up to get vray. |
Post by prodigy // Apr 10, 2007, 9:58am
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prodigy
Total Posts: 3029
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Good to heard that.. :jumpy: If i can help you, just contact me any time ;) |
Post by jayr // Apr 10, 2007, 11:16am
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jayr
Total Posts: 1074
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sure, can you lend me $200? just kidding..... |
Post by prodigy // Apr 10, 2007, 11:39am
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prodigy
Total Posts: 3029
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sure... you have a sister??? :D (kidding too) |
Post by jayr // Apr 10, 2007, 11:45am
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jayr
Total Posts: 1074
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sorry, she's just got engaged! lol |
Post by prodigy // Apr 10, 2007, 12:02pm
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prodigy
Total Posts: 3029
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hehehe.. ;) |
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