The Line Art Curve Modifier is a Geometry Nodes tool that converts 3D objects into customizable line art. It generates lines based on various object traits, including contours, creases, silhouettes, intersections, and light contours. The tool provides extensive control over line appearance, offering adjustable thickness, tapering, noise displacement, and line extensions for a sketched look.

It includes features for shading and depth, such as hatch, crosshatch, and sketch shadow infills with rotation control. The modifier responds to key light positions with cast shadow support and thickness adjustments based on light direction. For animations, it utilizes simulation zones to maintain stroke consistency across frames. The tool automatically generates UVs for every stroke and calculates Z-depth to ensure lines maintain an appropriate thickness relative to the camera distance.