It is very effective to use photographs on boxes instead of heavy models. The rendering time is greatly reduced. I'm making presentations with lamp options right now, the photos are helping! For example, with a lamp model, the rendering time is 12 hours, with a photo on a box with invisible sides it is 7 hours. You need to take a photo of the desired lamp on the Internet on a flat background, remove the background. Save it in PNG format and apply it on the box as a texture. Use the templates to stretch the box to the desired dimensions, and raise the box with the image to the ceiling level. This photo should be highlighted with small flat hemispheres from the ends of the box. Unfold it perpendicular to the viewer's gaze so that there is no distortion. Round lamps without strict geometry work well. If the chandelier is on a hanging cord. it is easy to make it out of cylinders, you can turn it into a mirror and assign the desired color, this will turn our photo almost into a real spatial model.
you can make cabinets of the desired design on boxes. You only need to cut out the photo of the door and place it on the front side, paint the rest in the desired color. You will get a cabinet that weighs very little. It looks like a real model.
if you combine such imitations of real objects and full-fledged models in a project, you can get a very real look of the interior, which can be easily processed by the SH3D program. I will try, on the advice of dear Keet, to optimize all the elements as much as possible, to remove the invisible sides altogether. When I get the result, I will definitely share it with you. I hope to find out the real difference in time of this optimization method. In my interior, everything is built on boxes, there are hundreds of them, they almost always have only one side visible. I'll try to remove everything unnecessary.
