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The Draw Curve allows freehand drawing of curves in the viewport. Different projection options allow the curve to be snapped to either a construction plane or a collision geometry.
Drawing with a stylus input device will account for pressure and tilt.
This tool uses the Stroke SOP internally.
Using Draw Curve
Draw a curve anywhere in the scene
Draw a curve on an object
Create Width Attribute
Creates an attribute named
width containing the curve’s radius.
When this is disabled, the Radius parameter is used only as the display size of the viewport brush.
Radius of the curve.
When Create Stroke Attributes is enabled, this is stored as integer
stroke_tool on each curve. It can be used by tools
based on this node to take different actions for each curve.
Create Color Attribute
Create a primitive color attribute.
Color of the curve.
Create Stroke Attributes
Creates attributes containing detailed information about the recorded strokes.
See the Stroke SOP for more information.
Opacity of the curve.
Projection is only done at drawing stage.
Reproject by resending rays on underlying changing collision geometry.
Use the uv coordinates from the initial projection on changing collision geometry.
Delete parts of drawn curves that don’t hit any collision geometry.
Projection of the curve is done on specified orthographic plane.
Projection is done on the collision geometry that is plugged into first input.
Center of the orthographic projection plane.
The following examples include this node.
This example shows how you can use the Drag Center parameter of the POP Property node to apply an off-center drag to falling objects.