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code/SDFSolidAngle
The distance to a cone of directions cut off at a sphere.
Sdf3d
Returns the signed distance from a sampled position to a solid angle: everything within a given opening of the +Y direction from the apex, out to a sphere of the given radius. A narrow angle makes a spike, a right angle a hemisphere-capped cone, and a wide one a sphere with a bite out of the bottom. The twin of geo/SDFSolidAngle, for use inside a geo/SDFBuilder sub-network.
Parameters
| Name | Type | What it does |
|---|---|---|
| P | Vector3 | Position to sample the field at. Left unwired it reads the builder's own sample position. |
| t | Vector3 | Apex of the cone. It opens along +Y from here. |
| radius | Float | Radius of the sphere the cone is cut off at. |
| angle | Float | Full opening of the cone, in degrees, measured across it rather than from the axis. It stops short of a full turn, where the shape would close up and the formula stops holding. |
See also
- geo/SDFSolidAngle
- code/SDFSphere
- code/SDFTube
- code/SDFBoolean
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