zbrush dynamic floor offset export

[kromar]

https://github.com/JoseConseco/GoB/discussions/258

ZBrush has a export scale multiplier as you know and below that slider there are 3 axis offset sliders, one for each axis. Let's say we export a character, with all 3 offsets set to 0. The character will export to blender at some random position on the up axis. But when one sets the ZBrush Y axis(up) offset to 1 then the character exports to blender with the feet nicely resting at the world origin. For this to work the floor elevation in ZBrush has to be set to -1 so it dynamically adjusts to the lowest subtool in the tool.

Now you might think, why doesn't one simply place the characters lowest point inside of ZBrush at the 0 0 0 point instead of using dynamic floor, the reason for that is: Let's say we want to extend the legs of the character, if we do that we would have to move up the entire character again which would be very tedious, that's why dynamic floor is so good. And going back to export offset, when the value is set to 1 then it nicely plays together with the -1 floor elevation to set the characters feet on the floor when exported to blender