Info:
Since ZBrush 4R8 we're now able to import 32bit maps. This means that we can now properly import displacement maps and apply them to our meshes.

One thing that's still missing though, is the ability to work (easily) with multiple UV UDIMs.

So I've spent a bit of time to put this tool together that'll allow you to import multiple UDIM displacement and apply it your mesh.

Unfortunately it's currently only for Windows, hopefully this will change in the future.

For extra info, please read the notes below.

How to use:
Map naming must be: *UDIM.EXT. So as long as your maps end in a UDIM sequence (1001, 1002, 1003, etc) then you're good to go
IE: map.1001.exr or map_1001.exr.

-Set your map resolution using the slider in "Map Settings".
-Set your preferred "Intensity" using the slider in "Displacement Settings".
-Hit "Import Displacement", then select your maps.

-You should then see ZBrush ticking through and applying maps.
-The UI may freeze, but it'll come back once complete.

Downloads:

Version 1.2 for Zbrush 2020, 2019, 2018 and 4R8:
Download Version 1.2

Previous Versions:
Download Version 1.1
Download Version 1.01 (ZBrush 4R8 Only)

To Install:
Extract the contents of the zip to:
C:\Program Files\Pixologic\ZBrush VERSION\ZStartup\ZPlugs64

Changelog:
Version 1.2:
-Fixed bug where .tif files were being deleted if selected whilst the Process EXR Before Import option was ON. This option should only work with .exr files. Version 1.1:
-Added Process EXR Before Import option. This option will ensure a 0.5 value for sample space used on the UVs outside the current UDIM being processed. Version 1.01:
-Fix bug where cache directory was being store in the wrong location. Not a tool breaking bug, but messy.

Notes:
Disp only:

Currently this is for displacement only. Unfortunately the way in which I'm importing displacement maps doesn't work for textures, and I currently haven't found a way to automate this.

Undo issues:

This plugin will momentarily reduce your "Max Undo Count" to 2, then restore it back to it's original value. This option can be switched off in the "General Settings" palette.

Reason: when creating this, I discovered a possible cache/memory usage issue(?) with Zbrush when you have your "Max Undo Count" set high. (Default is maxed at 10000).

I found that with a "Max Undo Count" of anything above 2 Zbrush quickly ate up memory when you cycle up/down sub divisions levels. However if I lowered the"Max Undo Count" to 2. The memory stayed stable.

Here's an example of what I mean:

Max Undo Count at 10000:


Max Undo Count at 2:


Intensity:

The intensity option in the Displacement palette in the ZBrush tool palette doesn't quite feel right/accurate.
Meaning I'm not 100% that entering a value of 1 is the same as rendering your displacement in a renderer with a value of 1. This is a ZBrush thing, so please keep this in mind and adjust your layers "intensity" after it's applied.

Usage:
This tool is free to use for commercial and non-commercial.

FAQs:
I get bloating or shriking in my mesh when maps are applied, why?
Zbrush requires that the mid value of a displacement map be exactly 0.5 when imported.
It's worth while checking your displacement map inside an image editor or compositing software where you can pixel check the areas outside of your UV shells to ensure they're exactly 0.5.
This is especially important if you're exporting maps out of Mari that you may have built using captured displacement maps.


Contact:
Any issues, bugs, requests, questions about this plugin.. please drop me a mail. Thank you!

 

All images and work © 2020 Jake Harrell unless stated otherwise