Shape

GPU

SDF polygon/star shape generator with soft edges.

Renders a regular polygon or star using a signed-distance-field evaluated in a fragment shader. The shape is always centered and aspect-corrected. Increase sides for rounder shapes (64 = near-circle). Enable star to pull alternating vertices inward, creating star patterns.

Output is premultiplied-alpha — composite it with Composite or layer it over other generators.

Source operators/gpu/shape/shape.cpp

Tips

Set sides=64 and star=0 for a soft circle. Pair with Trails for motion blur.
Modulate rotation with an LFO for spinning shapes.

Parameters

Name	Type	Range	Default	Description
star				How far inner vertices pull inward. 0 = regular polygon, 0.9 = extreme spikes.
softness				Width of the antialiased edge. Higher values give a glow-like falloff.

Outputs

Name	Type	Description
texture		The rendered shape on a transparent background.

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