Hello!
I’m doing these product images (Power Fuel) but want to know how to set up the lighting so the label is reflecting like the green bottle example. The label needs to look glossy while the bottle is more of a flat black.
I applied two materials and tried to set up lighting accordingly, pushing the hardness of the label all the way etc. with not luck. Any pointers?
Try adding a little mirror to the label. The bottle itself will be dull because its surface is a little rougher that that of the label. Specular highlights are a way of faking a portion of the reflectivity of a surface, or the “hotspots”, and this is only done in CG, not in life. In life, specular highlights are provided by reflectivity. Diffuse relfection = scattered light reflection off a rough surface. Specular reflection = reflection off of a smooth surface, like a mirror when the light follows more of a straight path off the object.
What I would do, is push the mirror value up on the label ever so slightly until you find a good result. Turn the gloss down slightly as well to create reflection blurring on the surface, since you’re not trying to create a mirror here. In blender, the more gloss value up to 1, the smoother the surface and the lower the gloss value, less than 1, the rougher the surface, but it is touchy in Blender, so small amounts usually give large results.