For help on a simple 3D rendering.

I have to do is two-dimensional, 3D little, the previous owner let me use another person to do 3D model of open, a little change, and then shading out, I opened, first of all say that the lack of prompt exaggerated, according to F9 After that play up the line set brushing is not direct, because he may be using the VR shading, I would also change the default renderer.F9 then it could be a brush, but out of the brush is always pure black, The background is black, and then to build the model is also black, is a direct blackboard.Then I changed the color, rendering out of the normal background color, but objects or pure black, I would like to ask is why? Should change how 3D shading, in order to? Guiqiu ..the more detailed the better.

Because the original author used material vr, the description Renderer can not line up correctly so you play up the material editor there were no electoral materials used ball and then assigned to all objects in the room and then all the lights are deleted to put floodlights on the lamp is in the middle of the room and then play up