Lumen GI and Reflections feedback thread

[Daniel_Wright]

@Lumen - Material Pass Replace Node

Having played with Lumen and the material editor for a while this morning, it sorely stood out to me that Lumen does not use any of the existing Switch/Replace nodes in the Material Editor, nor does it have its own. Currently, if one would want an emissive surface to be 1 intensity on-screen, but 1000 intensity for Lumen, that’s not possible, while it’d be an incredibly useful control to have for artistic direction.

Lumen Surface Cache does use the Ray Tracing Quality Switch, however the problem is Lumen Screen Traces are just reusing what’s on the screen so these kind of ‘different Lumen Scene than main view’ techniques just cause view dependent lighting due to Screen Traces.