Hi Emmanuel,
Couldn't reply sooner been unwell for a few days.
Thank you for the information and lightSource.obj.
I had discovered the deformable#, texturable# and lightSourceDiameter# properties and had already added them to the AdvancedRenderingLights that I used in the above 3.2 renders, to help make sure the lights closely matched the previous renders.
One question, if the light object doesn't start with sweethome3d_light_source, won't it then show in the SunFlow render?
As for render times, yes you guessed correctly!
The first "Gallery space" renders (very high resolution) I tried were with a custom AdvancedRendering version, it used twice as many samples (I was aiming for very high quality) and took a massive 51 hours.
Then, after returning the samples back to the previous settings, the render was around 23 hours.
After discovering a bug with SunFlow, that drastically affected indoor render times if sunsky or IBL isn't required, I made a new custom AdvnacedRendering version just for this model with that disabled, which rendered the same scene in 13.5 hours.
I was very pleasantly surprised to find Sweet Home 3.2 rendered the scene in around 5-6 hours, well done!
Have downloaded the source code, look forward to examining the changes you made.
Thank you,
David
