Atlas Trace

Atlas Trace cuts the leaf shapes out of an atlas card. It follows the alpha to find each leaf's outline and fills the outline with an even mesh, so a leaf's silhouette comes from its geometry instead of a masked rectangle. Its first input takes the card from Atlas Material. Atlas Mesh runs it inside, and so does Atlas Wizard.

Outputs

Trace Geometry is the meshed leaves. Border Edges is their outlines, which Atlas Emboss takes in its Borders input.

Tracing

Trace Method picks how the outline is found: Vector (the default) or Raster. The Raster Trace Settings set the Voxel Size, and Remove Small Pieces drops fragments below the size next to it (greyed out until the toggle is on).

Under Construction Settings, Border Edge Length sets the spacing of points around each outline and Inner Edge Length the size of the polygons inside it. Smaller values follow the silhouette more closely and cost more polygons. Threshold is the alpha value the outline is traced at.

Status

The atlas nodes are experimental, and their parameters may change.