Adding a Label to a Bottle Method One

Adding a Label to a Bottle Method One

Maya 2012 Tutorial

 

How to Add a Label to a Bottle Object in Maya

 

 

Adding a label to a bottle in Maya is a bit tricky since the bottle and the label have different reflective properties. You also need to apply the label so it wraps around the bottle without any distortion.

In this example we will create a bottle and a separate matching curved label object. Since the label is a non-square shape, the label will need to be adjusted once applied.

It is also possible to accomplish this with a Layered Shader or Layered Texture. For more information on adding a label using a Layered Shader, see topic, Adding a Label to a Bottle - Method Three. You may find this method somewhat easier since we will be creating the bottle and label as two separate objects.

 

Step One

Open a new Maya document and start a new project. Be sure to set your project and save your new scene. For more information, see topic, Starting a Project.

Step Two

Choose Create > CV Curve Tool (include options). In the tool options, set the Curve Degree to 1.

Step Three

Click multiple times in the front view to define half of the bottle's profile. The profile should be positioned to the right of the y axis and include the inside and outside of the bottle. Press Enter to accept your shape.

Step Four

Select the profile and choose Surfaces > Revolve (include options) from the Surfaces menu set.

Step Five

In the Revolve options, choose Axis Preset: y , Surface Degree: Linear, and Output Geometry: Polygons. Select the Attach Multiple Output Meshes checkbox, set the Type to Quads, then select the Count checkbox and set the count to 200. Click Revolve to add your shape to the workspace.

Step Six

Select the bottle and choose Mesh > Smooth (include options) from the Polygons menu set. In the Smooth options, set the Division Levels to 1, then click the Smooth button.

Step Seven

With the bottle still selected, choose Edit > Delete by Type > History.

Step Eight

Right-click the bottle and choose Face from the menu. In the front view, use the Paint Selection tool to select all the faces that will be covered by the label. If you accidentally paint an unwanted face, press the Ctrl key and un-paint the face.

Step Nine

With the faces selected, choose Edit Mesh > Duplicate Face from the Polygons menu set. In the top view, drag the blue arrow out slightly so the new face is outside the bottle. Press the q key to exit from the tool. The new object will be your label.

Step Ten

In Photoshop, open a new 1,024 x 1,024 pixel image with a transparent background and design a label. Leave some blank area on all four sides of the label. Once you are finished with your design, choose Merge Visible from the Layer panel menu

Step Eleven

Command-click (PC - Ctrl-click) the Label layer icon to select the non-transparent areas of the image, then choose Select > Save Selection. Name the selection Alpha and click OK.

Step Twelve

Save the label image as label.tif in your project's sourceimages folder. It is saved as a tif file to retain the alpha channel (transparency) information.

Step Thirteen

Returning to Maya, select the bottle, then right-click the bottle and choose Assign New Material. In the Create Render Node, click Blinn. In the Attribute Editor, set the Color to blue, decrease the Transparency and drop the Eccentricity to 0.1.

Step Fourteen

Select the label, then right-click the label. Choose Assign New Material, then select Lambert.

Step Fifteen

In the Attribute Editor, Lambert tab, click the checkerbox next to the Color slider.

Step Sixteen

In the Create Render Node panel, 2D Textures section, right-click the File button and choose Create Texture.

Step Seventeen

With the label selected, open the Attribute Editor, file tab. Click the folder icon (next to Image Name) in the File Attributes section to connect to your label image in the sourceimages folder.

Step Eighteen

With the label selected, choose Edit UV's > Normalize from the Polygons menu set.

Step Nineteen

Click the perspective view and press the 5 key, then the 6 key to see a preview of your texture. Open the UV Texture Editor by choosing Edit UVs > UV Texture Editor and choose Tool > Move UV Shell Tool. Marquee select the uv map in the editor

Step Twenty

To rotate the uv map press one of the Rotate icons. If the map appears distorted, choose the Scale tool (r key) and scale in the x and y directions.

Step Twenty One

Click the Render Current Frame icon to view your model.

Funny Looking Bottle

To improve the bottle appearance, select the bottle and click the blinn tab in the Attribute Editor. Open the Raytrace Options section. Activate refractions by clicking the Refractions checkbox and set the Refraction Index to 1.5. Make sure to enable Raytracing in the render options. Try rendering the bottle using Mental Ray. For more information, see topic, Adding Mental Ray Textures.

UV Mapping

In Step Eighteen we used the Normalize feature to quickly fix our UV map. To create a more accurate UV map, consider mapping each of the faces. For more information, see topic, Manual Texture Layout.

 

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