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When I create a sphere in 2021, it adds a strange white edge and haze that I can't get rid of. I don't get this in 2020. I'm not experienced in 3D, so I'm looking for any advice I can get. (Sorry - the third sphere is a different issue.)
Looks like you cranked up the Fresnel effect. Check the Specular and Reflection settings.
Thanks, Mylenium. How do I do this? Where do I find these particular settings!
This could be material /lighting settings or it could be one of the bugs introduced when the material system was changed to a Base/Metallic/Roughness workflow which introduced some hard transitions where they should be more subtle. Without seeing the file it is hard to tell. Can you post a link to the PSD and I'll take a look at it.
Oh, my freakin' gosh! Roughness!!!!
Sorry for the delay - I've just downloaded your file but it does not contain the 3D layer, just a pixel layer with the rendered output on it
However from your additional post it sounds like you have it sorted 🙂
Ok, now I have encountered a new 3D problem. Yesterday, PS v 22.4.1 was messing up the spheres by chopping them into pieces when I tried to make any materials adjustments. Today, it seems back to normal. Do you have any idea what might cause this, in case I encounter it again? Also, it doesn't show the 3D workspace like it did before. 2020 works tickety-boo, like always.
Adobe are updating the core graphics functions in Photoshop. This is driven by the operating systems of Apple and Microsoft in which the old Open GL/CL functions are being removed in the case of Apple, or deprecated in the case of Microsoft. This means that the graphics functions that have worked for years must be rewritten to use Metal and Direct X. At the same time, Adobe are sensibly updating those core functions to deliver the additional speed we require to handle the very large files of today.
Some functionality in Photoshop, such as 3D, still relies on the older Open GL graphics functions. To make these work, an additional preference Preferences>Technology previews>Deactivate Native Canvas has been added. This can be checked and Photoshop restarted to restore 3D functions to where they were in 22.3
Thank you, Dave. Good to know.