generalizedPolyhedronSdf

Keywords:

• dodecahedron
• icosahedron
• octahedron
• polyhedron

Radius Field

Begin End Field

Exponent Field

sdf

generalizedPolyhedronSdf

RayTK

v0.40

Generates one of several different types of polyhedra.

Based on “Generalized Distance Functions” by Akleman and Chen.

Parameters

Name	Description	Regular Handling	Read-Only Handling
Shape	Chooses between several different predefined types of polyhedra, or Custom, which uses the Begin and End parameters to generate different shapes.	Semi-Baked	Semi-Baked
Custom: Octahedron: Dodecahedron: Icosahedron: Truncated Octahedron: Truncated Icosahedron:
Begin	Only used when the Custom shape. It’s a bit hard to describe, so it’s best to just experiment with it and see how it behaves.	Runtime	Baked
End	Used along with Begin.	Runtime	Baked
Translate	Shifts the center of the shape.	Runtime	Baked
Radius	The size of the shape.	Runtime	Baked
Use Exponent	Enables the use of the Exponent, which controls the sharpness of the edges. When this is switched off, the shape will have sharp edges.	Semi-Baked	Semi-Baked
Exponent	Controls the sharpness or smoothness of the edges.	Runtime	Baked

Inputs

• Radius Field: (optional)
  • Coordinate Types: vec3
  • Context Types: Context MaterialContext CameraContext LightContext RayContext ParticleContext VertexContext PixelContext
  • Return Types: float
• Begin End Field: (optional)
  • Coordinate Types: vec3
  • Context Types: Context MaterialContext CameraContext LightContext RayContext ParticleContext VertexContext PixelContext
  • Return Types: vec4
  • Supports Variables From Inputs: radiusField
• Exponent Field: (optional)
  • Coordinate Types: vec3
  • Context Types: Context MaterialContext CameraContext LightContext RayContext ParticleContext VertexContext PixelContext
  • Return Types: float
  • Supports Variables From Inputs: radiusField beginEndField