I don't see seams on lowpoly mesh, it looks like that in Blender viewport for example: Maya and Blender have some smoothing settings for UVs, but in Zbrush I am not sure how can it be. For example I have a highpoly and lowpoly meshes, and I do "projectALL" LP on HP or just copy+paste UVs in UVmaster zplugin if necessary. I…
I have an artifacts like this after baking displacement in zbrush. There is no difference in the settings I use or 16bit/32bit or format or resolution. When I use SubDiv 5+ on objects with displacement I see this weird stuff on seams, Blender or Maya, doesn't matter. It's NOT like in that video:…
It looks like you have smooth uv checked in the multi map exporter settings.Try turning it off and also turning it off in the subdivision settings in your render package. I'm not familiar with blender, but it could be 'none' or 'linear' maybe? Also worth checking this…
I got an access to MudBox just for testing Displacement export from another app. Firstly, I baked 16px padding VS 128px and there were no seam artifacts on both. Then I noticed that when I'm baking with "Smooth UVs" turned off in Zbrush, on the model appears other artifacts along the low poly mesh (wireframe), like that:…
It's likely that your padding amount is too low. 8k will need 64 pixels of padding outside each UV shell, so you need 128 pixels in the gutters between the shells. I would suggest adding more padding, just completely fill the empty gutters with padding. Photopea has a fast padding filter, and you may need to run it a…