Curvature

Python: "map_curvature"

The curvature map analyzes the normals of surfaces by proximity, and outputs a brighter or darker color based on neighborhood curvature. This node is very useful to add wear and dirt either on its own or as a blend mask between two materials. A typical use of this map is to blend between paint and rust at the edges of an object.

Common

Node alias

Python: "map_alias"

Human-readable node alias.

Alias color

Python: "map_alias_color"

Identificative node color.

Main

Bypass

Python: "map_bypass"

When this option is on, the map attributes are dismissed altogether and the input is passed-through to the output.

Direction

Python: "map_curvature_direction"

Specifies whether the curvature node must work on the convex (+) side, concave (-) side, or on both sides of the surface.

Samples

Python: "map_curvature_samples"

Number of samples used to evaluate the curvature. Higher values produce a more accurate result, but come at a price in performance.

Radius

Python: "map_curvature_radius"

Controls the proximity range where the node looks for adjacent faces.

Scale

Python: "map_curvature_scale"

This value acts as a radius multiplier.

Scale map

Python: "map_curvature_scale_map"

Controls the radius scale multiplier grayscale map. This is an excelent way to add irregularities and variation to the evaluated curvature.

Include in calculations

Python: "map_curvature_include"

Defines whether curvature is detected across different objects sharing the same material or not.

Threshold

Python: "map_curvature_threshold"

This value widens or narrows down the spread with which nearby surfaces are taken into account during curvature evaluation.

Bias

Python: "map_curvature_bias"

Changes the curvature falloff, softening or hardening the transition between high and low curvature values.

Strength

Python: "map_curvature_strength"

This is a multiplier that amplifies or diminishes the output curvature value.

Red/Green

Python: "map_curvature_red_green"

Displays convex and concave as red and green for easier visualization of the curvature effect. This feature is meant for debugging purposes.

Invert

Python: "map_curvature_invert"

Inverts the curvature coloring. White becomes black and vice-versa.