Render issues

PaulEvans92

Hi im having a problem within blender and was wondering if anybody could offer any suggestions, I go to render my work within the view port but for some odd reason it turns all my objects white, also when I attempt to render my model I just get a complete grey screen, any help would be great thanks 

PaulEvans92

also I don't think its missing materials because even though it becomes grainy when I change it from scripting  to animation it shows my materials in textures