ZBrushCentral

Problem extracting Displacement from high poly

MY highest sub div is 35 mil.
I want to extract a 4k displacement and normal.
using mutlimap extractor
zbrush gives away mem error and crashes

Altho i have maximize the slider to highest in mem option

My pc configuration is 16gb ram i7 and 660 card

How to extract this these maps… Please answer

Regards

You can divide your mesh into several subtools and then use the Multi Map Exporter>Merge Maps option to merge the maps back together. The plugin will merge those maps that share a UV space so if your model already has other subtools make sure you do the maps for those separately.

Also, you may find that pressing Preferences>Mem>Compact Now before you try to create the maps helps.

ZBrush is a 32bit program so can only use 4GB of the memory on your system. And 35 million polys is a lot for it to cope with. It is also overkill for a 4K map. A 4K map won’t capture all the detail in 35 million polys because there are only 16 million pixels.

Thanx, marcus_civis

you are totally right about that 4k map, it will kill the detailing, thats why i have open multiple uvs set udim (required for mari) but the issue arises when i try to extract those maps from multimap exporter. As you mention Zbrush is 32bit so it only uses 4gb instead of my 32 gb ram.
My question is if i split my mesh accordingly to my uvs wont it will give a seam while extracting the detail. I mean border wise where the mesh is cut because it wont read the attach part with it (i hope you understand what i mean)
Regards

I think it should be OK if you crease the edges of the meshes but you will have to test and see if it works satisfactorily.