* Masks: set the corner roundness of a Rounded Rectangle mask (#3067)
layer.addMask takes a roundness (corner radius in px) for shape rounded, and the new
mask.setRoundness changes it afterwards on a rectangular mask.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Mask roundness: refuse ellipses, keep feather points and key correspondence
mask.setRoundness accepted any closed path whose vertices lie on its bounding
box, so an ellipse was replaced by a rectangle. It now accepts only a plain
rectangle (four corner vertices, straight sides) or a rounded one (eight
vertices, straight sides alternating with circular corners).
The rebuilt path keeps the old start vertex and direction, and its feather
points, so an animated path's other keys and the feather points still line
up. A change between square and rounded corners changes the vertex count; it
is refused when the path is keyed or has feather points instead of leaving
keys with different counts or dropping the points.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
A double-click on a creation tool in the Tools bar makes what it draws, as in After Effects: a text layer from the Type tools; from the shape tools a shape that fills the comp - into the selected shape layer's Contents, as a mask on the selected layer (or when Tool Creates Mask is on), or as a new shape layer when neither applies. The shape geometry defaults now match AE: the Rounded Rectangle tool's Roundness is a fixed 20 instead of growing with the drawn size, and the Polygon tool draws five points.
