Paint Tool

The paint tool in NVIDIA Omniverse™ View is used for painting assets / instances of assets quickly and easily onto other meshes. Typical use cases for this tool would be for painting in grass, trees or debris.

Brushes

Ref #	Option	Result
1	Drop Down List	Allows creation of new or selection of loaded brushes.
2	Open	Allows loading of previously saved brushes
3	Save	Saves the brush to the path choosen in Preferences > Brush Settings Default path is C:/users/current-user/Kit/view.config/Brushes
4	Recent Brushes	Shows up to 6 of the most recent used brushes for quick selection.
5	Paint Tool	Activates the Paint Tool
6	Erase Tool	Activates the Erase Tool
7	Flood Tool	Activates flooding for the selected tool

Parameters

Option	Result
Instancing	Allows the user to replicate meshes in a variety of ways. Point Instance: Places point markers which are then populated by instances Instance Asset: Places instanced assets directly in the scene None: Places assets directly and does not use instancing
Brush Size	The radius of the brush in centimeters
Brush Falloff	Allows selection of several falloff types
Vertical Offset	Offsets placed assets on the z axis
Density	Determines the number of placed assets, higher numbers place more assets
Object Padding	Controls the spacing between assets, used to reduce overlap
Stamp Spacing	Used when dragging the brush, controls the distance between each stamp
Conform to Surface	Rotate painted meshes/instances to match the surface geometries normal facing direction.
Random Rotation	Randomly rotate placed assets (Applied to the Z axis)
Scale Distribution	Toggles Scaling on/off for the selected brush
Bias	Controls the favor of scale factors Towards Min: Values Less than 1 Towards Max: Values Greater than 1 1: No favor is given, disables bias
Min	The minimum scale permitted during distribution
Max	The maximum scale permitted during distribution
Weight	Controls the curve of scale factors used in distribution Lower numbers sharpen the distribution curve Greater numbers flatten the distribution curve

Note

Density is directly related to object padding. If greater density is needed and increasing density appears to have little effect, reducing the padding amount to negative values can help in increasing the density of the brush.

Paint Tool

The Paint Tool allows users to brush randomly scattered selected assets on surfaces based on the brush parameters.

Erase Tool

The Erase Tool allows users to use a brush interface to delete selected assets.

Note

if there are no assets listed in the assets pane, the erase brush will have no effect.

Flood Toggle

The flood toggle allows either the paint or the erase tool to affect an entire surface.

Paint Tool Flooding

The area will be completely covered based on the assets and brush parameters.

Erase Tool Flooding

The erase tool will remove all assets based on the asset pane selection(s).

Assets

The assets portion of the paint tool allows users to select 1 or more assets to be used in the paint operation.

Ref #	Option	Result
1	Add Asset	Adds an asset to be placed by the brush
2	Delete Asset	Removes an asset from the brush
3	Enable Toggle	Enables/Disables the asset
4	Replace Asset	Allows selection and replacement to a different USD asset
5	Locate Asset	Opens the content browser to the location of the asset
6	Bias	Controls the amount/chance the asset is selected during placement

Widget Notification

The paint tools widget color acts as a notification system. As you move the paint tool around the viewport you will notice it changing colors.

Widget Color	Widget Visual	Meaning
Blue		Denotes a valid brush and that the surface is paintable
Yellow		Denotes a valid brush but is over a surface that is not paintable
Red		Denotes an Invalid Brush, check your settings and try again

Important

The paint tool does not consider the content of the placed USD files. Users should select files that are appropriate for painting (ie: single assets) and avoid full scene files.

Additional Settings

The paint tool has some additional global settings that can be adjusted in the Preferences of Omniverse View. To get to these settings go to the Window Menu and select Preferences. Next select Misc in the left column and look for “Brush Settings”.

Option	Result
Path to Save Brush Files	This is the path where saved brushes are located.
Paint when stroke done	Waits until a paint stroke is complete before placing assets.

Note

When painting high poly assets, “Paint Stroke When Done” can be a useful optimization as your brush stroke will not be halted while assets load.