Beam Divergence
The Pathtraced Sensing Component has a Samples Per Beam property that affects beam divergence simulation. This component is attached to the photosensor GameObject.
If you set Samples Per Beam to 1
If the samples per beam is one, then SensorSDK takes a sample through the center of every laser beam. This provides efficient sampling with zero noise. The value should provide a good estimate of the true intensity. However, it doesn't model distance fall off and beam divergence over an angle.
Note
The power reflected in this scenario is directly proportional to the input power.
If you set Samples Per Beam to a value greater than 1
In this case, multiple rays are sampled from a gaussian distribution at the surface. Lower values provide better performance at the cost of more noise. More power is concentrated around the nominal direction of the ray.
In either case, the beam is an ideal gaussian beam model, using the analytic gaussian beam equations.