Again an older render First I rendered this scene in 3Delight, just because the techno tube prop was created for this engine. you can see it here: https://www.renderosity.com/mod/gallery/the-virtual-tube-01-3delight/2662632/ After that, I thought, why not try this with the new iray engine (last year it was new) :smile: At first this was a PITA - techno tubeprop blocking light from dome and so on .... After some try and error - only scene lights (no dome) - emissive shader on techno tube prop - and bringing in 4 meshlights from callads light system I was able to get this image. Workflow: DAZ3D 4.*, Callads Light System, Iray-engine, Irfanview for Logo = 100% pure render