Trowbridge-Reitz roughness

../../../_images/trowbridge.png

Iridium reflective material associated with variable Trowbridge-Reitz roughness

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

Scalar shader nu

The roughness shader along u axis

Scalar shader 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>