romain.janil Posted October 30, 2019 Posted October 30, 2019 Hi, I'm noticing some very annoying banding artefacts in the sky, no supersampling involved, and I'm just using out of the box provided base, lightcolor an mie textures. Does this problem come from the fact these maps are very low res nor HDRs. So what is the best way of getting rid of this gradient banding quantification: increase maps res, use more bit depth (regular scattering luts are simple tga), add some bluenoise... ? This is less noticeable at midday and with cloud layers, but still visible. Thanks for any advice. R
silent Posted October 31, 2019 Posted October 31, 2019 Hi Romain, Please, make sure that you have enabled 16-bit color buffer in Rendering Settings: How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
romain.janil Posted October 31, 2019 Author Posted October 31, 2019 Hi yes Color 16F is checked, the banding is even obviously worst when uncheked...
silent Posted October 31, 2019 Posted October 31, 2019 Could you please send us a sample .world file with this sun position to check? Thanks! How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
romain.janil Posted October 31, 2019 Author Posted October 31, 2019 Sun is indeed very low on horizon, magic hour VIZ_NG.world
silent Posted October 31, 2019 Posted October 31, 2019 Thanks for the test scene. Indeed there is a color banding occurs. We need some time for investigation. We will take a closer look into this after 2.10 SDK release (right now the whole team is busy with 2.10 SDK stabilization). As soon as new information arrives from our dev team I will post an update. How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
romain.janil Posted October 31, 2019 Author Posted October 31, 2019 (edited) thanks for the feedback, having some nicely dithered sky gradient at dusk and dawn with good atmospheric haze feeling are a must for clean cinematic like mood, and I don't want to rely on static env maps. Edited October 31, 2019 by romain.janil
romain.janil Posted October 31, 2019 Author Posted October 31, 2019 It's DOF which is causing this banding effect. Disabling it and bands vanish, but no circle DOF and blured far background...
silent Posted November 1, 2019 Posted November 1, 2019 That's strange, because with enabled DOF i have less banding with disabled :) How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
romain.janil Posted November 1, 2019 Author Posted November 1, 2019 Hi Silent, with this particular world scene setup it's worst with DOF blur, here are 2 pics to compare: enabled disabled even with a very small blur amount
werner.poetzelberger Posted November 4, 2019 Posted November 4, 2019 Actually I as well experienced banding with DOF in some scenes.
silent Posted January 21, 2020 Posted January 21, 2020 This bug has been already fixed in the internal builds. Bug fix will be available with 2.11 release. How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
silent Posted April 28, 2020 Posted April 28, 2020 6 hours ago, werner.poetzelberger said: Hey. Has this been fixed? thx.w. Yes, fix is included in 2.11 release. How to submit a good bug report --- FTP server for test scenes and user uploads: ftp://files.unigine.com user: upload password: 6xYkd6vLYWjpW6SN
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