"error C6013" shouldn't appear because Rembrandt no longer use arrays in fragment shaders for shadows
RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x8cd6
Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs.
There is a number of additional options that can help to avoid these problems :
Avoid the "error C6013" message on old cards at the cost of resolution in the cockpit. Set <tt>/sim/rendering/shadows/cascade-far-m</tt> to change the shadow map range. The more the range, the less the resolution (default value is 5 meters)