ZBrushCentral

Draw size

ZBrush Usage Questions
#1

OK, so the draw size value is clearly relative to something, possibly the object’s scale somehow, and this means that draw size changes relative to the surface depending on how your model is rotated.

F’rinstance, I’m modelling a character at the moment and I’m detailing his hand with the rest hidden. I’m zoomed in (or scaled up I suppose, the way ZB seems to think of it) so that the hand fills the canvas. When I sculpt on the palm of his hand (which points down) the draw size diameter is roughly the same size as the width of a finger, yet when I rotate the model round to work on the back of the hand (points up) the draw size diameter is suddenly bigger than his whole hand. Which is really annoying.

So, is there any way to lock the draw size so that it’s relative to the screen or the surface instead of being relative to whatever the hell it’s relative to at the moment, thusly enabling me to draw the same width of stroke on one part of the model as on another without having to adjust the draw size each time I rotate the view.

And if not, can we have one in ZB4 please? :slight_smile:

#2

When you have Perspective on the cursor will vary according to perspective. If the surface is near to you the cursor will appear larger than when over a surface further away. But the actual brush size doesn’t change.

Turn off Perspective and the cursor will be the same size wherever it is.

Draw Size is relative to the screen, not the model. So if you scale up your model to work on detail the brush will cover a smaller area.

To resize the brush relative to the model you need the Adjust plugin from the Download Center. This has buttons for storing and resetting Draw Size relative to the model.

#3

This might be how it’s intended to work, but it’s not how it actually works. The “surface” it’s relative to isn’t what’s under the cursor, it’s relative to whatever bit of the entire subtool is closest to the camera plane, and this is true even when that part of the model is hidden. So when working on a detail that’s toward one extremity of a model there’s a huge difference in cursor size depending on whether you’re looking out from the centre of the model or in towards the it.

Turn off Perspective and the cursor will be the same size wherever it is.

Jeez, I haven’t been out of perspective mode for so long it didn’t even occur to me to try this.

I’ll be sitting in the corner wearing a dunce hat if anyone needs me.

Thanks a lot.