RayDeepAO MJT
Author: Mark Joey Tang - https://www.facebook.com/MJTLab

A setup to render Ambient Occlusion from Geo to deep format, able to set non-renderable objects.
Create all in layers, so the main scene can interact with other geos but not holdout by them.
Inputs:
- cam: connect with camera node
- bg: define the output resolution
- msc: stand for 'main scene', which is the primary geo(s) to render AO. Input can be a single geo or a scene node connected to multiple geos.
- ssc: stand for 'sub scene', which is setup non-renderable geo(s) but they interact with the primary geo(s). Input can be a single geo or a scene node connected to multiple geos.
- msc_tex: stand for 'main scene texture'. This input will be used when 'use texture' is checked. Texture required in UV space.
Output:
Output is in deep format. If output vector is checked, position and normal data is also in deep format.


