A set of predefined basic brushes that are versatile in a variety of use cases, and a good place to get started with painting.

A set of predefined brushes created by Bradford DeCaussin, which can be used to add small detail to your textures. For example, you can use the moleAttack brush to add spots and blemishes to skin, and use jackFrost to add texture to objects in cold environments.

A set of predefined hard surface brushes. These are particularly useful for adding detail to metal surfaces, such as scrapes and scuffs.

A set of predefined organic brushes, useful for creating plant and animal textures.

A shelf which comes loaded with high-quality grunge textures created by industry professionals. This includes all of the textures used in the new Smart Masks collection, by Stuart Ansley, plus the Grunge Textures for Mari pack released alongside Mari 7.0, by Johnny Fehr.

A set of predefined materials based on the Principled BRDF shader model. There are a range of manmade and organic materials for a range of use cases, from adding fabric to clothing, to creating shiny gold coins. See Managing Materials in Mari for more information.

A set of predefined python scripts to perform certain useful functions. For example, Shrink Backdrop can help tidy up your node graph by shrinking a backdrop node to fit its contents.

Basic Smart Masks are controllers that hold mesh map information. For example:

• (AO) Ambient Occlusion: A basic controller for an Ambient Occlusion mesh map. Requires an “AO” Broadcast Channel/Geo-Channel or custom mask input.

See controls

Input | Invert	Inverts the black and white values of the incoming mask
Input | Falloff	Adjusts the contrast in transition between light and dark areas of the mask
Input | Position	Shifts the midpoint of the incoming mask, effectively adjusting the range of the mask. Will not affect the mask if Falloff is set to 1
Output | Invert	Inverts the mask after all other adjustments

• Curvature: A basic controller for a Curvature mesh map. Requires a “Curvature” Broadcast Channel/Geo-Channel or custom mask input.

See controls

Input | Edge	Isolates the convex edges of the input curvature mask
Input | Cavity	Isolates the concave regions of the input curvature mask
Input | Surface	Edges and Cavities render black, all other surfaces render white
Input | Input Map	Renders the mask with no adjustments
Input | Edge/Cavity Range	Adjusts how far the edges or cavities extend when isolated. Does not affect Surface or Input Map
Input | Invert	Inverts the black and white values of the incoming mask
Input | Falloff	Adjusts the contrast in transition between light and dark areas of the mask
Input | Position	Shifts the midpoint of the incoming mask, effectively adjusting the range of the mask. Will not affect the mask if Falloff is set to 1
Output | Invert	Inverts the mask after all other adjustments

• Position: A basic controller for a Position gradient for the x, y, and z axis. Note that the output is clamped.

See controls

Axis | X	The blend amount of the x (left-right) gradient contribution
Axis | Y	The blend amount of the y (up-down) gradient contribution
Axis | Z	The blend amount of the z (front-back) gradient contribution
Output | Invert	Inverts the mask after all other adjustments
Debug | Debug Enabled	Activates Debug Mode. The output will display Debug Colors if enabled and will ignore any Falloff, Falloff Position, or Invert attributes. This mode can be helpful to align the full range of the Position Gradient from white to black on the 3D mesh using the Floor Offset and Broad/Fine Scale Adjustments
Debug | Debug Colors	Activates Debug Colors to more easily visualize the opposite ends of the gradient (pure white and pure black). A value of 1 is displayed in magenta and a value of 0 is displayed in green
Debug | Floor Offset	Adjusts the starting point of the gradient. With the default Y Axis active and isolated, the starting point of the gradient will move up and down in space. Lower the slider number to raise the floor starting point
Debug | Broad/Fine Scale Adjustment	Increases or decreases the range of the gradient. Smaller assets typically only require the Fine Scale Adjustment slider but larger assets may benefit from a combination of the Broad and Fine Scale Adjustments
Input | Falloff	Adjusts the contrast in transition between light and dark areas of the mask
Input | Position	Shifts the midpoint of the incoming mask, effectively adjusting the range of the mask. Will not affect the mask if Falloff is set to 1
Output | Invert	Inverts the mask after all other adjustments

• WorldSpaceNormal: A basic controller for a World Space Normal gradient for the x, y, and z axis. Note that the output is clamped.

See controls

Axis | X	The blend amount of the x (left-right) gradient contribution
Axis | Y	The blend amount of the y (up-down) gradient contribution
Axis | Z	The blend amount of the z (front-back) gradient contribution
Input | Invert	Inverts the black and white values of the incoming mask
Input | Falloff	Adjusts the contrast in transition between light and dark areas of the mask
Input | Position	Shifts the midpoint of the incoming mask, effectively adjusting the range of the mask. Will not affect the mask if Falloff is set to 1
Output | Invert	Inverts the mask after all other adjustments

Each Grunge Map Smart Mask is a combination of a Basic Gradient Input and a Breakup in the form of a tileable texture map, a procedural, noise, or both. All Grunge Map Smart Masks have the same controls as those listed in the Basic Smart Masks, with a few additions.

The following is an example of a typical Grunge Map Smart Mask, driven by an AO mesh map and a tileable texture map with controls for 2D or 3D Placement. In some cases there will be additional similar controls for procedural noises.

• Grimey Dirt: A grunge map based off an Ambient Occlusion mesh map. Requires an “AO” Broadcast Channel/Geo-Channel or custom mask input.

See controls

Smart Mask Tab
Input | Invert	Inverts the black and white values of the incoming mask
Input | Falloff	Adjusts the contrast in transition between light and dark areas of the mask
Input | Position	Shifts the midpoint of the incoming mask, effectively adjusting the range of the mask. Will not affect the mask if Falloff is set to 1
Output | Contrast	Adjusts the contrast of the output map
Output | Contrast Pivot	Adjusts the midpoint of the output contrast adjustment
Output | Invert	Inverts the mask after all other adjustments
Breakup Tab
Texture |	Texture map used to provide breakup for the mesh map. Generally mixed using an Overlay, Multiply, or other blend mode with the input mesh map
Texture | Rotation Angle (Degrees)	Angle of the texture map
Texture | UV Repeat	Number of repeating tiles of the texture map
Texture | U Repeat	Number of horizontal texture repeats
Texture | V Repeat	Number of vertical texture repeats
Texture | U Offset	Left and right 2D texture placement offset
Texture | U Offset	Up and down 2D texture placement offset
Texture | Mirror U	Flips the texture horizontally
Texture | Mirror V	Flips the texture vertically
Texture | Triplanar	Disables 2D controls, activates Triplanar texture projection, and enables Triplanar projection controls
Texture | Front Angle	Adjusts the rotation of the front projection
Texture | Top Angle	Adjusts the rotation of the top projection
Texture | Right Angle	Adjusts the rotation of the side projection
Texture | Uniform Scale	Adjusts the world scale of the texture projection
Texture | Scale X	Adjusts the left-right scale of the projection
Texture | Scale Y	Adjusts the up-down scale of the projection
Texture | Scale Z	Adjusts the front-back scale of the projection
Texture | Translate X	Adjusts the left-right position of the projection
Texture | Translate Y	Adjusts the up-down position of the projection
Texture | Translate Z	Adjusts the front-back position of the projection

• Some nodes will have additional controls which may include the following:

Noise | Size	The blend amount of the x (left-right) gradient contribution
Noise | Roughness	The blend amount of the y (up-down) gradient contribution
Randomness | Amount	The blend amount of the z (front-back) gradient contribution
Randomness | Size	World scale of the the randomness noise
Randomness | Roughness	Rough breakup of the randomness noise
Leaks | Length	Length of the leaks based on the range of the input gradient

Note:  Information on special attributes that are unique to a certain node can be found in the Node Description under the Node tab of the Smart Mask.

These tools stored in the shelf can help you create unique effects with Smart Masks.

• Texture

This node contains the controls found in a tiled texture node and triplanar texture node. This can help with scaling and stretching textures to get the desired effect.

• Warp

You can create a warp effect in both UVs and 3D, and switch to Directional mode to adjust the angle of the warp.

• Spot Toner

This helps add definition to your textures. When connecting a Texture as the Base and Paint node as the Over, you can then paint brightness and contrast onto your texture.

• Spot Toner 2

Similar to Spot Toner, but instead of working with a Multiply blend mode, it works with Gamma instead.

• Spot Stainer

Similar to Spot Toner 2 but a stronger effect. This utility is useful for blood or wet masks as you can change the color, depth, and falloff to make a realistic stain effect.

• Channel mixer

Add and mix colors to different channels, creating a variety of color effects.

• 2D Placement

Control the rotation, position, and scale of textures in UV space.

• 3D Placement

Control the rotation, position, and scale of textures in 3D space.