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Allows a lighting artist to output an AOV mask.   Since it is a "light",   we can use light linking as well as light filter(s) to modify the output mask.

This is a very handy "utility" light to output shot-specific masks without needing to request them from the shading artists.  See PxrAOVLight for an example.

 

Note

This light does not illuminate. It operates more like a utility.

Parameters

AOV Name

The name of the output AOV.

...

Warning

This will require some amount of samples to get a clean mask .

In Reflection

or you may use "Adapt All" setting to sample the AOV automatically for a performance degradation sampling all AOVs instead of just the beauty.

If this is on, the rays are traced through the specular reflections to get the masking signal.In Reflection

Warning

This will require some amount of samples to get a clean mask or you may use "Adapt All" setting to sample the AOV automatically for a performance degradation sampling all AOVs instead of just the beauty.


On Volume Boundaries

If this is on, the bounding box or shape of volumes will appear in the mask. Since this is not always desirable, this can be turned off.

Use Throughput

If this is on, the values in the mask for the reflected or refracted rays will be affected by the strength of the reflection or refraction.  This can lead to values below and above 1.0. Turn this off if you want a more solid mask.