Beckmann roughness¶
The Beckmann roughness model is based on an isotropic gaussian distribution of slopes. Its roughness parameter corresponds to the standard deviation (RMS) of the slope. A value of zero corresponds to a perfectly smooth specular surface.
Children nodes¶
The roughness shader |
Parameters¶
none
Ocean XML 6.1 example¶
<roughness type="beckmann" name="roughness">
<scalarshader type="uniform" name="roughness" value="0.4"/>
</roughness>