Hi,
I tried out valves shaders from the labrenderer and i stumbled on this issue with shaders in cutout mode.
When using unity’s shandard shader objects cast shadows as expected, though switching to valve’s shader which matches the cutout mode to AlphaTest , there are no shadows rendered.
The only light in the scene is a directional light .
The Lab shaders are not designed to be used with Unity’s built in shaders and lights. To get proper rendering you must be using The Lab’s custom camera and lights and all objects must be using Valve’s custom shaders. If any material in the scene is using a built in Unity shader The Lab shaders aren’t likely to render properly.