Houdini 20.5 Nodes Geometry nodes

RBD Paint geometry node

Paints values onto geometry or constraints using strokes.

Since 17.0

This node allows you to interactively paint weaker areas on the geometry in the viewport before applying the RBD Material Fracture node. This it typically used for concrete and will paint a density attribute in the areas you want more fracturing to occur. To see these affects, choose Scatter From Attribute on the RBD Material Fracture node and specify density as the Attribute Name.

Parameters

Reset Strokes

Clears all recorded strokes in this node.

Reapply Strokes

Re-apply the cached strokes onto the input geometry. This operation is performed against the un-expanded input geometry.

Method

Unchanged

No change to the cached strokes.

Warning

Strokes painted on interior faces with Exploded View on might bleed onto neighbouring faces.

Re-Project

Re-project the cached strokes.

Warning

Strokes painted on interior faces with Exploded View on will be projected onto the outer faces.

Stick to Deforming Geo

Copy painted attribute values onto the input geometry.

Exploded View

Expand the geometry for painting.

Scale

The amount to expand the pieces. Each piece is moved proportionally to its distance to the center.

Output Attribute

Specifies the name of the point attribute to paint into.

FG Value

The maximum value for strokes made with .

BG Value

The maximum value for strokes made with .

Opacity

A scale on the FG Value. This can be useful to drag into the viewport as a HUD handle so you can adjust the strength of each stroke on the fly, especially if you don’t have a pressure sensitive input device.

Radius

The maximum radius of strokes. Pressure sensitive input can scale this value down.

Stroke Method

Specifies how to combine the strokes with existing attribute values.

Stroke Quality

The sampling rate of the brush stroke. Higher values can capture more detail but use more memory and are slower to display.

Visualize Attribute

Toggles visualization of the painted attribute.

Division Size

Divides the polygons in the geometry to allow for more precise painting.

See also

Geometry nodes