Excellent! This is looking very good. I spent an evening just enjoying moving lights around, watching the update and doing full bakes that took only 20 minutes. Only complaint is that it was a bit of a downer going back to work the next day, where we use A Different Engine with a classical lightmapper. Workflow as follows: 1. Adjust light. 2. Wait five minutes for lowest quality bake of the whole scene to get an impression. 3. Adjust light again, because it was still off. 4. Wait again. 5. Adjust again. 6. Wait again. 7. Run out of patience and accept a "almost close enough" solution, other tasks need doing. 8. Wait for day to end to start a two hour production quality bake. Progressive Lightmapper == Gamechanger.