marksee Posted January 14, 2008 Share Posted January 14, 2008 Ok, I have a rather large problem with an exterior movie I'm creating. I am trying to render the scene w/ vray and am running into odd problems. The first time you try to render a scene, the estimated time jumps to over 100 hours!!!! If you stop the rendering and re-render the frame will render in 8 minutes. If you don't however, the estimated time seems to be accurate. I though maybe it was just a time estimate problem, but it just never renders. So... this is ok for the computer i'm running the program on... Its annoying but I can just stop and rerender after the first attempt. However, the problem is now network rendering where Viz restarts when the rendering is complete or canceled. I'm assuming this is a problem when the LC and Irr. Map is stored into ram, but is there a way to fix this? Very weird. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted January 15, 2008 Share Posted January 15, 2008 What version of V-ray are you using? Link to comment Share on other sites More sharing options...
marksee Posted January 15, 2008 Author Share Posted January 15, 2008 1.5. It is a very odd problem. I am rendering the light cache and irrad. map to file so that I can network render. I figured this might help speed this up. Problem is now I get to a certain frame and the irrad. map errors out, but it will fully render??? Link to comment Share on other sites More sharing options...
Craig Ramsay Posted January 15, 2008 Share Posted January 15, 2008 Hmmm I can't think off the top of my head what it could be apart from maybe a memory issue? Post up you're settings and some more details of the scene. Link to comment Share on other sites More sharing options...
marksee Posted January 15, 2008 Author Share Posted January 15, 2008 the scene is an exterior courtyard with a single vray sun. There are a lot of RPC objects xref'd in, but I know that this is not the problem because it behaves the same with or without the xref. Other than that, the scene is rather simple, a lot of exterior glass w/ reflection. The files is very very slow to load into viz the first time, but after the initial load it opens rather quickly (I know this from multiple crashes!!!) I've first calculated and stored the light cache map with the following settings: 2250 subs on world scale. I saved this solution and browsed to it w/ from file mode. Then I switched the primary bounces to irradiance map on med. preset w/ 20HSph subs and 50 Int. samples - on incremental add to current map. I am using adaptive sub image sampler w/ 1 min -2 max and an area antialiasing filter. Only other change from default is color mapping of hsv w/ .7 dark .5 bright and .8 gamma. This is probably more info than needed but there it is. I have used these settings to successfully render around 8mins or so but I want to avoid flickering from redoing a new and complete solution @ every frame. Thanks to everyone. Link to comment Share on other sites More sharing options...
marksee Posted January 15, 2008 Author Share Posted January 15, 2008 Oh, and I had your thought about memory.... But I can tell you that it doesn't even try to render from frame 350 on. I have been (for irrad map) rendering every 35th frame. Once I get to 350 it errors right after it processes the RPC's. Watching the memory, I can tell you that after each frame it returns to a normal rate and doesn't budge until it starts rendering the solution. I can't even get a single bucket to render. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted January 15, 2008 Share Posted January 15, 2008 Will it render if you remove the RPC's from the scene? Link to comment Share on other sites More sharing options...
marksee Posted January 15, 2008 Author Share Posted January 15, 2008 no.... that was my first thought as well. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted January 15, 2008 Share Posted January 15, 2008 Hmm strange. Is there any displacement used in the scene? Link to comment Share on other sites More sharing options...
marksee Posted January 15, 2008 Author Share Posted January 15, 2008 A little for grass and mulch - but it renders if doing a complete calc. @ each frame? Link to comment Share on other sites More sharing options...
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