Skip to content

Thickness

icon

Calculate ray-traced thickness of a mesh. For more information about the ray-casting process see here. You can reduce noise by increasing ray count (expensive) or blur (cheaper).

thickness

The ray length sets the maximum thickness to search for:

  • Short Rays

    short_rays

  • Long Rays

    long_rays

Outputs

  • Thickness: Output thickness attribute.
  • Color: Output thickness attribute as color (used for visualisation).

Settings

Rays

  • Accumilation: How ray values are accumilated:
    • Average Hit Distance: Uses the average ray hit distance compared with the ray length. Often produces smoother results but values will change with the ray length.
    • Hit Count: Uses ray hit/miss ratio. Can be noisier but values are independent of ray length.
  • Ray Count: Number of rays cast from each point.
  • Ray Length: Maximum distance to check for ray collisions.
  • ConeAngle: Maximum ray angle from the normal. Rays will be distributed evenly in a cone up to this angle.

Blur

Blur result. Improves noisy results.

  • Blur Iterations: How many iterations to blur the result.

Occlusion Geometry

Additional geometry for rays to collide with.

  • Occlusion Object: Additional object to act as occluder.
  • Occlusion Collection: Additional collection of objects to act as occluders.