Zdravko Barisic Posted July 31, 2007 Share Posted July 31, 2007 Hi Is there any changes due to render time if objects are grouped or not? Link to comment Share on other sites More sharing options...
BrianKitts Posted July 31, 2007 Share Posted July 31, 2007 not really... geometry is geometry. If you have a tall modifier stack on an object you may see "transforming vertices" which could slow you down a bit... but that's just prerender while loading the geometry.... grouping shouldn't make a difference during the render. I don't remember the reason but if I remember correctly I think ted boardman once said grouping is a bad idea.... I'm not sure why, I still do it now and then. hmmm can't find the tutorial to back that one up.... anyone? Link to comment Share on other sites More sharing options...
Zdravko Barisic Posted July 31, 2007 Author Share Posted July 31, 2007 Yeah, similar what I've been told, is next: "When it comes to rendrer 3dsmax open/close group for every ray" (do not know who and where this is told) Also, why gropuing is bad idea? Groups are easier to work with them than named selection sets+layers Link to comment Share on other sites More sharing options...
Joseph Petrino Posted July 31, 2007 Share Posted July 31, 2007 I did a test several versions of Vray back and found that groups slowed down renders a lot. Don't know if it's still true. I had a pretty slow computer back then also. Link to comment Share on other sites More sharing options...
Zdravko Barisic Posted July 31, 2007 Author Share Posted July 31, 2007 I did a test several versions of Vray back and found that groups slowed down renders a lot. Don't know if it's still true. I had a pretty slow computer back then also. How much? 10/20/30 or even 50% If it is so, maybe its not bad idea to save separate file called "....-UNGROUPED" just for renderings purpose only? Link to comment Share on other sites More sharing options...
JamesTaylor Posted July 31, 2007 Share Posted July 31, 2007 i think Ted Boardmans reasons for not grouping has something to do with a scaling issue. You'll find it somewhere at http://www.tbmax.net (not sure in which tut tho). On a slight tangent.... if you attach geometry together i.e make it a element of editable mesh etc. it is denifical come render time as less ram is required to store each object in memory and also helps the loading scene reduce time take - probably only noticable on heavy scenes tho. Link to comment Share on other sites More sharing options...
kippu Posted July 31, 2007 Share Posted July 31, 2007 actually lots of groups in vray , crashes it ,,, i read it on chaos forum a while back.. Link to comment Share on other sites More sharing options...
RTurner Posted July 31, 2007 Share Posted July 31, 2007 I have a fully merchandised grocery store I am rendering, while learning Vray. This grouping issue may explain some of my crashing, I have lots a groups. What is the best method to managing VERY large scenes if one cant use groups in VRay? Are there other workflow rules to follow that might not be so obvious? I have tried to collapse as many objects as I can. Yet still have very long "transform vertice" delays. Link to comment Share on other sites More sharing options...
nivvu Posted August 1, 2007 Share Posted August 1, 2007 hiall... I use lots of groups in my file from my first day while learning max and vray... even i dont ungoup them while gvg final renderings..... until now programe didnt crash.... may be programe crashing depends upon our computer configuration.... regards nivas Link to comment Share on other sites More sharing options...
Tyorl Posted August 1, 2007 Share Posted August 1, 2007 I've used grouping but now i'm linking my geometry via script(from SoulBurner collection, thank u Neil) to point it takes some time to get familiar but it is veru useful. Link to comment Share on other sites More sharing options...
Chad Warner Posted August 1, 2007 Share Posted August 1, 2007 I seem to remember one of the Brians from 3dATS saying something recently about groups being bad, but I can't locate the post. Link to comment Share on other sites More sharing options...
Chad Warner Posted August 1, 2007 Share Posted August 1, 2007 Nevermind, wasn't them...here's the post: http://www.cgarchitect.com/vb/25036-mega-crash-v-ray-max.html Link to comment Share on other sites More sharing options...
Zdravko Barisic Posted August 2, 2007 Author Share Posted August 2, 2007 I did a short test with sam scene: 1. GROUPED > 59:57 2. UNGROUPED> 1:04:50 strange? Link to comment Share on other sites More sharing options...
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