Applying a Label to a Wine Bottle 3: Color and Metal Foil

In this third step we will add color and will see how to apply two different materials –paper and metal foil– using a single texture with different texture maps.

We already did a first tutorial, in which we defined the size of the label and created and applied a texture with the correct dimensions. Then we did a second tutorial in which we refined the stencil map to show the shape of the label.

This is our starting point.

download the project file.

Let us start with the color map.

Don’t mind the ugly cut at the bottom. This map is “cut” by the stencil map, so everything will be OK.

This color map is just pasted in the diffuse color channel of the texture.

Here is a detail of the color map applied.

Metal foil

The yellow line and the “WHITE WINE” text will be metal foil and raised. We need to combine the matt paper and the shiny metal in one single texture. The maps are:

Diffuse Color

We already have that map.

Diffuse Amount and Ambient Amount

We need a grayscale version of the color map. The map is white where the texture is matt and gray where it is shiny.

We will use the very same map we used for color as a Specular color map. This obeys the fact that metal reflections are the same color as the metal.

Specular Amount and Reflectivity

The paper is neither reflective nor specular, so the map is black where there is paper in the label. Where there is metal foil, the map is white. We use the same map for Specular Amount ad Reflectivity.

Bump

The bump map is white (raised) where there is metal foil and a bit grainy for the paper.

Texture parameters

These are the texture parameters.

In the Reflectivity drawer, make sure to check Blurred Reflections.

In the Smoothness drawer, set the Primary Mix Ratio to 3%

There we are. The label and the bottle should look like the images below.

In the next tutorial, we’ll deal with the neck of the bottle.

These are the 4 tutorials: