February 24, 2012, 12:19:49 pm
And now with primitive Lumion lights when i set in a scene about 20 lights, fps drops from 20 to 3 with GTX 560 Ti on a board.
Actually, the IES lights in Lumion are not that
primitive. Sure, the IES lights are capped at 180 degrees and asymmetrical IES profiles are currently not supported. But as far as I know, most real-time 3D engines don't have IES lights at all, so I'd be grateful if you could post some links to other real-time
3D engines that have implemented more advanced IES lights?
Regarding performance, if Shadow cache
is off it means that it is a fully dynamic light which is updated every frame. To prevent the frame rate from dropping, you either need to select all lights and turn Shadow cache
on (eg, 512x512 pixels for each light), or you should press F8 to turn shadow textures off.
Icons of menu are obscure. You can only guess what types of light are in light menu. To select necessary type you must try several times.
This has already been discussed a number of times. Remko has previously mentioned that he would consider adding an object replacement function, so that you can replace any number of selected objects with another object, and that would include lights.