Is it possible to add "collection" input parameter to the open mesh modifier?

[ItsCubeTime]

Is it possible to add "collection" input parameter to the open mesh modifier?

I would like to combine multiple objects, preferably from a collection.

[eliemichel]

Hi @ItsCubeTime, this is a good question, and I see two options:
a. The collection is considered as a single input of an OpenMfx effect, so Blender merges them into a single mesh before sending them to the effect
b. The collection is considered as as many inputs as there are objects in the collection. This requires to add to OpenMfx the possibility to have a variable number of input, and to think about how the object from the collection should be ordered if the effect depends on the order of the inputs.

I believe (b) is a more interesting option, but (a) is easier to implement and does not depend on changing OpenMfx (which is not so much of a big deal since Blender is the main host but still). I opened an issue in the OpenMfx project: OpenMfx#15 then.