BK wrote:The implementation of Global type is to save translation time allowing nonanimated objects merging into only one translation node. [ https://docs.otoy.com/MayaH/MayaPluginM ... yTypes.htm]
the online help about Global Geometry Type is not up to date, I think.
The Global type was useful in V2, it could make rendering really faster in some cases:
Indeed, merging objects into one is a common trick to speed-up ray-scene intersections for old raytracers.
But since V3, Octane seems to use a more efficient acceleration structure making this trick useless.
In my tests, rendering is even slower with Global Geometry Type now, because of the additional "mesh merging" time.
In my opinion the Global type should be removed because it doesn't speed-up rendering anymore and breaks a lot of Octane features.
Or did you find a use-case where the Global Geometry Type has any advantage in V3 ?