The Paint and Erase tools can be activated using Paint Layers. Below are definitions for the Tool Settings of both tools. This also includes advanced brush settings and drop-down menus for pen pressure and jitter.
Paint/Erase Tool Settings #
|Brush Preview Area||Shows a preview of the brush.|
|Save Brush to Library||Saves the current brush preset to the Library.|
|Export Brush||Saves the current brush preset to disk.|
|Import Brush||Import a brush (.tbtool file) from disk.|
|Brush Texture||Load or replace the brush tip texture.|
|Tip Contrast||Adjusts contrast of the brush tip texture.|
|Lazy Mouse||Sets the input smoothing distance. Larger values will result in smoother brush strokes with a longer delay.|
|Enable Texture||Enable or disable brush texture map.|
|Frames||Sets how many frames the brush spritesheet has, which randomizes the brush stroke. For custom images, add _Nx to the file name, where N is the number of frames, to assign this value when loading your texture automatically.|
|Directional||Determines whether the brush tip texture follows the direction of the brush stroke.|
|Adaptive Flow||Determines whether the flow is regulated by spacing, which can provide more consistent opacity buildup when enabled.|
|Size||Sets how large the brush is.|
|Hardness||Sets the hardness of the brush edges. Higher values produce crisp edges, while low values create soft borders.|
|Opacity||Sets the transparency or opaqueness of the brush.|
|Flow||Sets the build-up speed of the brush opacity.|
|Spacing||Sets the distance between each brush splot.|
|Scatter||Sets the random positional offset of the brush.|
|Angle||Sets the rotation of the brush.|
|Squish||Sets the narrowness of the brush.|
|Warp||Sets the degree of procedural brush shape distortion.|
|Symmetry||Choose between Mirror or Radial mode. Mirror creates an instance of the brush stroke on the other side of your mesh, and Radial instances the stroke in a circular array. You can find more info in the [Symmetry] section|
|Symmetry Axis||Choose the axis or plane of symmetry.|
|Symmetry Amount||Sets the number of instances for radial symmetry.|
Advanced Brush Settings #
Below are the sub-settings found alongside each Paint/Erase tool setting slider listed in the section above.
You can add jitter to any brush setting to randomize your brushstroke. These settings apply to most sliders and can be expanded with the drop-down arrow on the left-hand side of each slider.
- Min – Sets the minimum value of your brush setting.
- Jitter – Sets how much random variation is applied.
Pen Dynamics #
You can enable brush dynamics for each available setting, and Toolbag includes support for the most common drawing tablets. Switch to a different tablet backend through Edit > Prefs > App to solve any compatibility issues.
|Off||Pen Pressure is disabled.|
|Pressure||Enable pen pressure when drawing.|
|Tilt||Enable sensitivity to pen tilt.|
|Fade||Smoothly transitions the setting from the current value to the minimum value.|
Projection determines how the brush will be projected onto the mesh.
|Alignment||Sets how the brush is projected relative to the surface of the mesh.|
UV – No 3D wrapping; draws the brush in UV space.
Tangent – Aligns the brush to the surface of the mesh with a harsh transition on the sharp corners.
Tangent-Warp – Aligns the brush to the surface of the mesh with a smooth transition on the sharp corners.
Sticker – Uses a complex method that folds around the mesh. This can work very well for wrapping around corners but may produce unexpected results with complex shapes.
Screen – Doesn’t do any wrapping. It projects the brush straight onto the mesh from screen space.
|Size Space||Determines whether the brush size is relative to the mesh in 3D space (Object) or screen area (Screen).|
|Contiguous Mesh Only||Sets whether the brushstroke will be restricted to the mesh object the brush first comes in contact with.|
|Distortion Compensation||Determines whether the brush texture will be stretched to wrap around the mesh geometry.|
|Occlusion||Determines whether meshes will prevent the brush-stroke from painting on through and other meshes.|
|Backface Culling||Sets the maximum angle the brush tool will paint on relative to the center point of the brush.|
|Backface Falloff||Sets how gradually the culling function fades to the maximum value.|
|Use Normal Map for Culling||Sets whether the normal map influences the culling function. When on, the surface details in the normal map will be used for culling.|