Model

• Each color is a Group
• Remember to set a unique color to define color groups
• Of course, you can use colors only for painting
• Fun fact: you cannot delete the last voxel!

Hover Toolbox

• Free Camera: disable drawing and makes navigation easier (shortcut: Space)

• Do not stay in drawing mode, switch to free camera as soon as possible.
• Use ALT/Space keys for speed drawing and painting on desktop

Grid Plane and Workplanes

Generator

• Create box and plane
• Create sphere with optional outer/inner size
• Create isometric room
• Create random terrain

• New primitive placed at 0,0,0 position in world space
• You can add box, plane, sphere and isometric to the current scene

Symmetry

• Select [ X Y Z ] axis before start drawing or painting
• Open "Symm." menu to symmetrize or mirror voxels
• Set pivot to "world center" or default "local center"

• Axis-view contain a symmetry axis-plane
• Scene contain a symmetry pivot

Modeling

• Add: add new voxel symmetry / workplane
• Remove: delete a voxel symmetry
• Box Add: add voxels by drawing a box shape symmetry / workplane

• Set "height" to larger than "1" to draw walls
• Connect two parallel voxels at far distance
• Ignore existing voxels

• Box Remove: remove voxels by drawing a box shape symmetry / workplane
• Rect Add: add a cluster of voxels by rectangle area workplane

• It works like a laser that only hits the first target
• Works best with orthographic view
• Press 'F' key to frame camera to improve accuracy
• Use workplanes to expand the selection area
• Respect visibility

• Rect Remove: remove a cluster of voxels by rectangle area workplane

• Respect visibility

Rect Add Tool:

Painting

• Paint: paint color symmetry
• Box Paint: paint color by drawing a box symmetry / workplane
• Bucket: replace all similar colors
• Paint All: re-paint all voxels
• Rect Paint: paint by rectangle area (works best with orthographic view)
• Eyedropper: pick a voxel color, not a pixel color
• Pixel Eyedropper: pick a pixel color (limited browser support)

Voxels

• Transform Box Shape: transform voxels by box-shape workplane
• Transform Color Group: transform voxels by color group
• Transform Rectangle: transform by marquee selection workplane
• Transform Visible: transform visible voxels
• Clone: clone the transform

• The transform is applied on tool change or 'Enter' key
• The transform is applied on UI changes
• The transform is undoable at any point
• Use workplanes to expand the selection area
• Rectangle is useful for selecting voxel islands
• Visibility is supported by all transform tools except box shapes
• Symmetry is supported for voxel selection, but not transformation

• Normalize Voxel Positions: transform model to center and drop the base to the floor
• Reduce Voxels: 1 voxel deleted in a 3x3x3 cube

Voxel transformation example:

You can divide the scene into 4 parts to store objects,
Enable workplane and orthographic view, use Rect transform to arrange the objects.
Later, you can use "clone" to insert a copy of the object into the main part of the scene:

Use "Clone" to replicate voxels:

Color Groups

• Isolate Color: isolate color group by picking a color
• Hide Color: hide color group by picking a color
• Invert Visibility: invert voxels visibility
• Unhide All: unhide all hidden voxels
• Delete By Color: delete voxels by selecting color groups
• Delete Hidden: delete all hidden voxels

Color Palette

• Color palette generated on-the-fly as you draw, paint or delete voxels
• Color palette contain unique colors

• Right-click on colors to show/hide color groups (double-tap in touch devices)

Axis View

• Tap on each axis to switch camera viewpoint
• Tap the cube to frame camera

Visibility

• Use visibility options to access underlying voxels
• Visibility is persistent, not break by drawing and painting
• Combine colors and visibility options to create complex shapes
• Hidden voxels store and restore on save/load or undo/redo
• Boolean operations are possible using colors and visibility options