gojade Posted July 9, 2015 Share Posted July 9, 2015 (edited) Hi, I encountered some issues concerning the otherwise great smoke-fluid-tools. Maybe somebody can help? FIrst off I'm using a "smoke container" and "source from volume" from the shelves. One thing is that in general I like using physically based lighting, so also using area lights with quadratic attenuation (physically correct). The problem is that the (otherwise incredibly good) viewport preview doesn't take the attenuation into account, so everything is completly blown out. Is there a way to fix this? (of course I can decrease the light intensity for preview and then set it up again for rendering, but that's lots of work.. ). The other more important issue happens when writing out the voxels: I'm using the "export file" and "background render" option in the Dop I/O in the smoke import node for this. What happens is that from some frame on the .bgos get saved but don't update anymore correctly. So the smoke just stops moving. Maybe this is a RAM issue, as it happens with quite hires sims? But it's kind of strange that the files get written without complaint, but don't get updated anymore. (At first I thought this was happening only with OpenCL enabled, but it also happened with pure CPU computing..) Well, that's it for now, thanks! Edited July 9, 2015 by gojade Quote Link to comment Share on other sites More sharing options...
Annon Posted July 9, 2015 Share Posted July 9, 2015 The viewport is rubbish and won't do what you want. I really hope for them to fix it, it's got worse if anything. A way around it is to set your lights to something decent in the viewport, usually I'll turn off all but the key for vis. Then create a take and set the exposure of the lights in the take to what look good in the render, then apply the take to the mantra node. The freezing thing I've only ever seen a few times on really high res sims with little velocity. If you're judging the quality of the sim by the viewport, don't! But you can stick down a volume vis sop, turn on max red and mult the default value by 3 or 4... You'll see there's more detail in there... Quote Link to comment Share on other sites More sharing options...
Guest tar Posted July 10, 2015 Share Posted July 10, 2015 (edited) Can you please Rfe your smoke/voulmes viewport lighting requests - this would be very nice to have. Thanks! Edit: Rfe submitted (ID=69794) Edited July 10, 2015 by tar Quote Link to comment Share on other sites More sharing options...
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