July 25, 2013, 05:39:21 am
Ok I see.
Well it's the drivers for the GPU.
It's not a Lumion message, but a driver message. Lumion uses (as do most real-time 3D apps) hardware shadow maps, but the GPU does not support it, usually because the card is too old or not implemented in hardware (such as earlier Intel integrated GPU's), and the drivers are not able to implement the required routines asked for by Lumion.
So it's nothing to do with basic features of the card such as number of shaders supported, but the fact the hardware does not handle those types of shader routines.
So you are getting this message when running Lumion via a dedicated GPU? If so, what are the specs of the GPU and PC you are running?