That’s a good point. GP is technically its own separate layer that gets drawn over the render, so now that the Render Layers node returns actual passes, it naturally will not be visible, but it is not accessible in other ways, so that’s a problem.
We can either:
- Make the combined Image pass a special case that includes GP. Which means that GP will be included in compositing as before, but means GP will not be visible when the user combines passes manually like one typically does.
- Draw GP on top of compositing. Which means GP will be excluded in compositing, but it will be visible even if users combine passes manually.
And a question - will it be possible to have access to view layers?
There are no plans for that at the moment.