 angle in radians.
Ignored for non-spot lights.angle = 0 to pi/2  (0 to 90 degrees).</p>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="rhino3dm.Light.SpotExponent">
<span class="sig-name descname"><span class="pre">SpotExponent</span></span><a class="headerlink" href="#rhino3dm.Light.SpotExponent" title="Link to this definition"></a></dt>
<dd><p>float: The spot exponent varies from 0.0 to 128.0 and provides
an exponential interface for controlling the focus or
concentration of a