ZBrushCentral

scale issue

ZBrush Usage Questions
#1

Im trying to export a model for use in UE4.

so far so good, I got my model and maps out no problem. but on import to UE4 I realised the scale was way off, and I cant find a way to scale the object in zbrush that has any relevence to UE4. so my model imports tiny.

previously I only exported for 3D print so it wasnt an issue as size/real world scale is set on the printer platform or in magix. But with zbrush I cant find a way to scale before export, I dont want to have to import it all to blender if I can do it in zbrush.

any tips gratefully received.

#2

tool>export has your scale options.

you can also change the scale on import into UE4

#3

I cant see any. i see the export function in the tool pallet, but nothing relating to scale, and when i click export it just asks me where to save.

I really want to export as FBX for UE4. so I was trying to use the FBX exporter too. I cant see anything in that about scale either. I’m either not seeing something very obvious or its hidden in a work flow I’m not familiar with.

in the geometry pallet there is a size toggle. but I cant see what its relevant to, cm, m, in, pica, mm, points… what is it relative to? at the moment I’m reading 1.0124 on that bar. but 1.0124 what? and how does it relate to other software?

any thoughts gratefully received.

#4

Digi-Mech:
Look just under the buttons in the Export Panel, and just above the Offset sliders, Scale is blending in.
As far as size relating to things in other programs, I dont know, perhaps you might think generic Units, so you are working at 1.0124 units or something?
As far as I know there is no way to measure stuff in ZBrush, but if you go into the Deformation Pallet and hit unify you will make whatever it is size to 1 Unit of ZBrushishness.

Test this with a Cube:


  • Make a Cube.
  • Hit Unify in the Deformation Pallet.
  • Look in Export and you will see that its Scale is set to 1.0.
  • Hit Export in the Tool pallet above and import into what ever software you like and see what a ZBrushish Unit amounts to.
  • Note that I have now coined two new terms of measurement (ZBrushishness and ZBrushish) and be suitably impressed.

Anyhow, its subjective, In Blender for example one Blender Unit can be an inch, meter, mile, or smoot and if you are me, lightyear. Also note that Blender hates me and wants to see me dead in a ditch.

Another trick would be to import an object with a size of 1.0 from the other program and compare it to things inside ZBrush. As I said, measurement is subjective, so a scale of 1.0 needs context.