d.hyde Posted May 21, 2009 Share Posted May 21, 2009 Can anyone tell me the best way of rendering large areas of trees? I have an animation project that requires large forested areas and I'm not sure how to tackle it. I have tried making proxies of low poly trees but the render times are huge and the noise levels are really bad even with my noise threshold set to .001 Does anyone know a better way of dealing with high quanities of vegetation? If anyone can also shed any light on why the noise is so bad, I would really appreciate it! I've attached my settings so you can see where I may have gone wrong. Thanks Link to comment Share on other sites More sharing options...
hughie Posted May 21, 2009 Share Posted May 21, 2009 do you need to include the trees in the GI? I have found little or no difference for stills and it gets rid of the flicker in animations. NB: Im using Speedtrees Link to comment Share on other sites More sharing options...
dinhtuan Posted May 21, 2009 Share Posted May 21, 2009 Your setting to hight for an animation, post some renderings sample if you can. Let try by change some setting of vrayrenderer Image Sample change to QMC 2-5, keep defaul thresh value GI: IR( hsph 30-40; inter sample 20-30) + LC flythought DMC sample 0.85; 0.01; other keep defaul value Cheer Link to comment Share on other sites More sharing options...
dinhtuan Posted May 21, 2009 Share Posted May 21, 2009 do you need to include the trees in the GI? I have found little or no difference for stills and it gets rid of the flicker in animations. NB: Im using Speedtrees How do you light the speedtrees to make it look like GI rendering? Link to comment Share on other sites More sharing options...
d.hyde Posted May 21, 2009 Author Share Posted May 21, 2009 Thanks for your responses guys. I've not tried excluding them from GI. I'll give that a go and also try the new settings posted. I'll get back with the results. Link to comment Share on other sites More sharing options...
danb4026 Posted May 21, 2009 Share Posted May 21, 2009 (edited) The one setting that I see right off the bat is your noise threshold. Although you say it is .001, it is not. You have Nm Threshold checked and set to .005 under your Adaptive Subdivision Image Sampler. If that is checked, that is what is used as your noise threshold. That would be some of the noise, but when you fix this, your render times will go up even more. I also agree with Dinh, try Adaptive DMC sampler (2,5) rather than Adaptive subdivision, Irradiance Map as primary bounce and and Light Cache as secondary bounce. What are you using to for lighting? Could you post an example of a still render? Edited May 21, 2009 by danb4026 add Link to comment Share on other sites More sharing options...
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