Trowbridge-Reitz roughness¶
The Trowbridge-Reitz roughness model is an alternative to Beckmann with a narrower specular peak and stronger tails. 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¶
nu | The roughness shader along u axis |
nv | The roughness shader along v axis |
Parameters¶
none
Ocean XML 6.1 example¶
<roughness name="roughness" type="trowbridge">
<scalarshader name="nu" type="uniform" value="0.1"/>
<scalarshader name="nv" type="uniform" value="0.3"/>
</roughness>