Ok, let me guess, you have a 3D object in Cinema 4D but it looks too clean and you and to make the flat surfaces more uneven to create an organic look right?
Ok I’ll assume you already know about Global Illumination and Ambient Occlusion (in Render Settings>Effect) which are lighting effects that will make your images more natural and having natural shadows helps your 3D object look more organic in Cinema 4D
To achieve an organic look you can ‘mess up’ your 3D mesh a bit, here’s how:
via Andrew Brett Watson.com http://www.andrewbrettwatson.com/index.php/more/it-solutions/339-how-to-add-noise-to-a-3d-object-in-cinema-4d-to-create-more-organic-look
Put the internet to work for you.