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Having a little trouble with getting the bottle glossy and not the label. As you can see there's a glass node... so the bottle should have some gloss anyways --right? When I use the diffuse node (instead of the glossy node) the label has the nice matte finish (as it's supposed too) but the bottle has no glossyness. But when adding a glossy node instead of the diffuse that makes the label glossy and yet still does nothing to add gloss. What am I doing wrong? Suggestions?enter image description here

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  • $\begingroup$ no .blend this time? $\endgroup$ – cegaton Jan 12 '16 at 0:24
  • $\begingroup$ Attached just now. $\endgroup$ – Marc Jan 12 '16 at 0:34
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There is nothing wrong with your setup other than the lights and the surroundings of the bottle... Remember, glossy materials reflect the environment. So make the environment something worth reflecting...

enter image description here

Instead of adding a bunch of point lights, create large light sources...

Since you are so invested in creating bottles, take some time and study how most images of glass and alcohol and beverages are lit. You'll find out soon enough that when dealing with glass most photographers have big light sources and interesting patterns to be reflected on the shiny surfaces.

One more thing to try in your setup is to use the yellow letters as a mask for the glossy shader, so that the purple part of the label can be diffuse and only the writing has a reflective surface

enter image description here

enter image description here

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  • $\begingroup$ Ok thanks. You lit the scene well. I'm not sure how to use "yellow letters as a mask for the glossy shader" --I'm assuming a 'mask' is something like an alpha channel in Photoshop. Something more to learn now :) $\endgroup$ – Marc Jan 12 '16 at 3:31
  • $\begingroup$ For the yellow letters use the node setup on the second image $\endgroup$ – cegaton Jan 12 '16 at 3:42
  • $\begingroup$ OIC! I just copied it node by node and I can see that letters are reflective now. So what it looks like (to me anyways) is that using the Hue/Sat Value along with the Curves you selected a value which was the letters and by doing so it creates kind of a faux alpha channel or what you call a mask? $\endgroup$ – Marc Jan 12 '16 at 3:59
  • $\begingroup$ The goal is to have a black and white image. The letters should be white and the rest black. The hue/sat/value controls what colors will be turned into black and white, the curve is to make the darker areas be closer to black by increasing contrast. The resulting image is fed into the fac socket that controls the mix with the glossy shader. Any image can be used as fac. It doesn't have to be alpha channel $\endgroup$ – cegaton Jan 12 '16 at 4:02
  • $\begingroup$ Thank you. Last question - What does fac stand for :)...? $\endgroup$ – Marc Jan 12 '16 at 4:16

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