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Overview

The Kuwahara filter applies a Kuwahara blur to the terrain, which is a different type of blur algorithm that tries to preserve edges lines and high frequency detail. With this it can be used to flatten low frequency areas and create overall more painterly looking straighter shapes.


Parameters

  • Kernel Size
    The distance of the kernel the filter uses. Higher values means the region for each pixel it operates on is larger.


  • Passes
    The number of iterations the filter runs for each step. Higher values result in a stronger effect.


  • Anisotropy
    Uses edge aligned normals for the sampling algorithm, leading to better edge preservation.


  • Sharpness
    Controls the sharpness of the edge preservation.


  • Hardness
    Controls the hardness between different blurring zones.


  • Length
    Scales the length of the individual edge splats.


  • Uniformness
    Creates more differences between blurring zones.


  • Zeta (Use Zeta enabled)
    Additional controls for scaling the blurring zones.


Results

base kuwahara filter
base terrain without kuwahara
flatter cliff face using the filter