I’m asking for an Global opacity map in the UI, which obviously only subtracts from the existing opacity that’s already in the material, it wont reveal new areas.
From the renderers point if view, this data should be read and interrogated before the whole material is read. I expect this will speed up rendering trees 10x.
Btw. the term opacity is annoying, it means ‘lack of transparency’ so saying ‘less opacity’ sounds like a double negative.
Visibility sounds rubbish but makes more sense, erm….