I can't see Vertex Paint in Rendered mode? I can see the sunlight and shadows. (I'm on the atmospheric fog episode)
maxhaskins You need to connect "Attribute Nodes" with the exact names of the "Vertex Color Groups" with the "Material Node Tree" of your "Evergreen Trees":
That node setup worked! I was about to have to select all the trees individually and color them, but I forgot about the link materials feature. Thanks for your help!