Uludag Premium
Agency: Guzel Sanatlar Istanbul
Art Director: Kemal Hayıt
Full CGI transparent glass bottles with editable background.
Result of a search for a way to change the background image of a transparent object and keep everything relevant. I did the modeling and renders in C4D. With some multi-pass renders, i stacked the highlights and shadows using the transparency alphas. Which resulted a transparent setup and was relatively easy. But the main challenge was to keep the refracted look which we see in a bottle of water. Photoshops smart objects was the solution i found. With 3 smart objects linked to a background file worked good for me. Because once you achieve the look with filters and liquify and whatever needed, smartobjects keeps the data for you and replicates the same editing to the new image. Just change the background smart object and it automatically changes the way it’s refracted. So the clients can choose whatever they like for the background without further editing. It’s still not perfect but a very close one. If anyone has an idea of doing it better please let me know in the comments.
Here is a small animation to show the interaction with the backgrounds.
Still examples. Same bottles on different backgrounds.
Close-ups
Sort of a backstage and some test renders along the way.
And for the c4d setup. I didn't use a floor object for the first time. Because floor objects also reflects on the bottle. So i just used the same bottle model upside down for the floor reflection. And i am very happy with the result. Of course you loose the shadow and some sweet caustics effects on the floor but you can always take a second render for those if that is what you are looking for.
