Height Map baking quality issue

LoonyIdea

Hello!

Sorry if this has been asked before but I haven't found a thread about this issue.
When I try to bake my sculpt from ZBrush to a height map I always get this weird artefact in Substance Designer. Tried to bake in 3ds Max and it's exactly the same result. Tried all kinds of settings but the result is always the same. The map resolution is 2k. It's hard to notice anything on heightmap screenshot but if I run it through Ambient Occlusion node or Height to Normal I get these ugly results:




Also the heightmap comes out very low contrasted both in Substance designer and 3ds Max



And this is the high poly that I'm trying to bake to a plane:



Will very much appreciate your help! Thank you

poopipe

Bake your height maps at a high bit depth. 

LoonyIdea

poopipe said:

Bake your height maps at a high bit depth. 

Thank you! I did bake it with 16 bit depth though

poopipe

Is your graph processing at 16/32 bit? 

LoonyIdea

poopipe said:

Is your graph processing at 16/32 bit? 

It is processing at 16 bit:

LoonyIdea

Oh when I tried to bake the heightmap in tiff format rather than tga in the high precision format (32F) it worked!
Thank you very much for that advice!

poopipe

Tga can't do high bit depths so that explains everything

I'd recommend you use png for most things as it's a nice format that supports 16bit per channel information.