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Extended Environment and the sky
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Joined: 2016-06-19 21:33:37 Posts: 342 Location: Columbus area, OH, USA 
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I have been trying out the Extended Environment Shaders and have noticed some odd behavior in some regions. When I face certain camera angles, the sky seems to strobe or flash. I actually managed to capture a screen shot where the image is split into a lighter and darker version. Has anyone else seen this behavior? I'm wondering if it is something related to my set up or configuration. Info, log and image below:
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| 2020-07-12 18:53:17 |
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Joined: 2009-03-17 18:42:51 Posts: 5550
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I cannot reproduce this issue here; I tried with and without deferred rendering, with and without shadows, with and without SSAO, at high (600+) or low (30-40) fps rates...
I see you are using a custom build. Does it happen as well for you with the official build (could be a compiler optimization bug, especially in maths) ? |
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| 2020-07-12 20:43:06 |
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Joined: 2016-06-19 21:33:37 Posts: 342 Location: Columbus area, OH, USA
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| 2020-07-12 21:05:10 |
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Joined: 2009-03-17 18:42:51 Posts: 5550
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Could you try with NVIDIA's previous driver (v440.100). v450.57 is brand new... and slower (so I myself reverted to 440.100) !... Maybe it got bugs.
Also, do you see the same issue happening with the previous Cool VL Viewer release (v1.28.0.1) ?... There has been a change by LL in sky rendering that I backported to v1.28.0.2. |
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| 2020-07-12 22:42:13 |
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Joined: 2020-07-08 23:18:37 Posts: 34
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Zane, I know what you are talking about. It's a sudden change in the sky I sometimes notice when my camera rotates in certain directions. It can get brighter and then return to normal at another camera angle. It is not a consistent behavior, so I hadn't mentioned it in the forum until you made this post. I had decided to wait and see if it got fixed since EEP is still very much in beta (imo), or in some chance circumstance that I was able to find a predictable way to repeat the bug. The next time I notice the issue, I'll attempt to see what graphical settings, if any, will affect it.
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| 2020-07-12 22:45:01 |
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Joined: 2016-06-19 21:33:37 Posts: 342 Location: Columbus area, OH, USA
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| 2020-07-12 23:07:16 |
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Joined: 2009-03-17 18:42:51 Posts: 5550
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NVIDIA v440.100 driver for Linux 64 bits
I'm also interested to know wether you can reproduce the issue with LL's viewer or not... |
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| 2020-07-12 23:10:41 |
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Joined: 2016-06-19 21:33:37 Posts: 342 Location: Columbus area, OH, USA
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| 2020-07-13 00:40:07 |
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Joined: 2009-03-17 18:42:51 Posts: 5550
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| 2020-07-13 01:17:00 |
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Joined: 2016-06-19 21:33:37 Posts: 342 Location: Columbus area, OH, USA
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I knew that LL had 'released' EEP, but didn't think so for Linux. The Linux viewer on their download page is 5.0.9 with all other platforms being 6.4.x. I assumed that since Linux viewer development had been halted for years, that they didn't backport EEP into it.
As far as NVIDIA 440.100, it was a real struggle to get it installed. The installer kept failing out at the dkms module build/install phase. Anyway, I got it running and with 1.28.0.2, I still see the flashing in the regions I was before. I do not think it is a driver issue, at least not between the versions I have tried. |
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| 2020-07-13 02:23:02 |
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