ZBrush ZBrush Masking and Selection 2 — Questions and Answers
Question 1: What is a 'Polygroup' in ZBrush?
- A group of polygon faces identified by a color for selection and isolation (Correct answer)
- A subdivision level group
- A set of subtools merged together
- A UV island grouping
Correct answer: A group of polygon faces identified by a color for selection and isolation
Polygroups are color-coded polygon face groups that allow quick masking, hiding, and selection of specific mesh regions.
Question 2: How do you hide all polygons except those belonging to the active polygroup in ZBrush?
- Ctrl+Shift+click on the polygroup (Correct answer)
- Alt+click the polygroup
- Shift+click on empty canvas
- Ctrl+H
Correct answer: Ctrl+Shift+click on the polygroup
Ctrl+Shift+clicking on a polygroup isolates it by hiding all other polygroups on the mesh.
Question 3: What does 'Group Visible' do in ZBrush's Polygroups section?
- Assigns a new random polygroup color to all currently visible polygons (Correct answer)
- Merges all visible subtools into one group
- Makes hidden polygons visible
- Converts visible polygons into a new subtool
Correct answer: Assigns a new random polygroup color to all currently visible polygons
Group Visible assigns a single new polygroup to all currently visible (unhidden) polygons on the mesh.
Question 4: What does the 'Select Lasso' (Ctrl+Shift+drag) operation do in ZBrush?
- Hides polygons inside the drawn lasso selection (Correct answer)
- Masks polygons inside the selection
- Selects and moves polygons within the lasso
- Creates a polygroup from the lasso area
Correct answer: Hides polygons inside the drawn lasso selection
Ctrl+Shift+drag draws a lasso that hides all polygons outside its boundary, leaving only the enclosed area visible.
Question 5: What does 'Ctrl+Shift+click on empty canvas' do in ZBrush?
- Shows all hidden polygons / unhides everything (Correct answer)
- Masks all visible polygons
- Deletes hidden geometry
- Saves a selection set
Correct answer: Shows all hidden polygons / unhides everything
Ctrl+Shift+clicking on empty canvas space reveals all hidden polygons, restoring full mesh visibility.
Question 6: Which ZBrush feature allows you to split a mesh into separate subtools based on polygroups?
- Split To Parts (Correct answer)
- Separate Groups
- SubTool Split by Groups
- Explode Mesh
Correct answer: Split To Parts
Split To Parts (in the SubTool palette) breaks the active mesh into individual subtools, one per polygroup.
ZBrush ZBrush Masking and Selection 2
What is a 'Polygroup' in ZBrush?