Rembrant light problems

[wlbragg]

ALS I get nice bloomed and beamed light effects.

Rembrant, it all fails




Is Rembrant still a viable rendering scheme or is there something wrong with my setup?

This is from next git a week or two ago.

[Thorsten]

Maybe one of the Rembrandt users wants to comment, my guess is that the issue is that these are not Rembrandt lights (which require a separate declaration in the model xml) but just generic things which appear as lights because they have an emissive color channel set - and Rembrandt doesn't handle them too well.

[ludomotico]

As Thorsten says, these models are just not prepared for Rembrandt. To be Rembrandt-compatible, you have to define the light sources in the XML. Under other systems (ALS/default), you define lightmaps, textranslates or emmisive colors. Using one of these tricks in the other light system creates weird effects, as your snapshots show. You can define a XML that selects the right effect according to the light system in use, as some aircrafts do, but this requires some work and tests.

Hence, since we have models made long before Rembrandt was available and some modelers (me, for example) cannot use Rembrandt and thus are not providing Rembrandt support in their models, you'll find hundreds of models that do not look right under Rembrandt.