Blur Operator

Smoothens a height field using fast high-quality blur kernels. Currently supported are Box (decent quality, fast) and Gauss (very high quality, slow).

Blurring a terrain makes sense if you want to get rid of e.g. unwanted artefacts, sharp edges, or excess detail.

Radius

The blur radius. Larger values will result in a more blurred result, but also take longer to calculate.

This attribute is not available for the ‘fixed’ modes.

Mode

Choose a blur kernel here:

• Box
  A simple and fast box blur kernel. This should be sufficient for most cases.
• Gauss
  A high quality Gauss blur kernel. Slower than Box Blur, but much smoother results.
• Gauss, fixed 3x3
  A high quality 3x3 blur kernel to remove small artefacts.
• Gauss, fixed 5x5
  A high quality 5x5 blur kernel to remove slightly larger artefacts.