I should imagine it could be very tricky to create unless you are very very close to the object as any GI blurring or image AA effects will ‘knock-out’ any fine bumps you would see.
actually very low glossy reflections simulate just that, a very rough surface. you don’t need a bump map, vray will take care of that much more efficiently.
if your keyboard was looking like a mirror I guess you had either reflections still too glossy, or a way too reflective shader. maybe both.
if your keyboard was looking like a mirror I guess you had either reflections still too glossy, or a way too reflective shader. maybe both.
Or you don’t have Fresnel checked…
Try setting your reflection colour to near white, switch Fresnel on and set your reflection glossiness to 0.6.