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Illustrator Tutorial - Create a 3D Bottle - Part 2 (Part 1)

Now, with your 'half-bottle' grouped and selected, go to EFFECT...3D...Revolve.

The dialogue box on the right will appear.  Drag it to one side so all of your bottle artwork is visible.  This is important as you will need to see the effect your changes are making on the artwork.

Click on the all-important 'Preview' box, make sure 'Left Edge' is selected if you have followed this tutorial exactly (if for any reason you drew the opposite side of the bottle, you will need to select 'Right Edge')

Now click the 'Map Art' button.

3D Revolve Options
Map Art
Moving the dialog box over is imperative.  As you click through the various 'Surface' shapes a red wireframe will appear on your artwork indicating where the Map Art should be placed.  When this wireframe appears to be where the main label should be, scroll through the Symbols drop-down until you locate the 'Main Label' symbol.  Repeat this until you have a wireframe for the outer edge of the bottle cap and look for the relevant symbol.
Map Art
In the example above, you will see that we have a total of 53 surfaces.  This number is entirely dependant on how you used your Pen Tool to draw your artwork.More on Map Art. When rendering a 3D object, Illustrator uses corner anchor points to define a new surface. Smooth anchor points will not define a new surface. When drawing your art, carefully specifying where corner or smooth anchor points appear on your path gives you greater control over how many surfaces are created and where they appear.
In this example shown, the wireframe seems to indicate that the 'main label' should be applied. When we did, the label (and the wireframe) were actually the inside of the bottle.  No problem.  If you make this understandable mistake, simply scroll back up to the 'Symbol - None' icon (or use the Clear All button).
Map Art
You can drag the symbol to position it to your liking on the surface, and you can also drag on the handles to resize it. As you adjust the position of the symbol, you will see the preview update on the actual 3D object on the artboard. Alternatively, you can use the Scale to Fit button at the bottom of the Map Art dialog to have Illustrator resize your symbol to fit to the surface, although it does so non-proportionally.

Once you’re happy with the size and position of your symbol on the selected surface, use the arrows at the top of the dialog to navigate to another side to map additional symbols, as needed. At any time, you can click the Clear button to remove a symbol from a selected surface, or you can click the Clear All button to remove symbols from all surfaces at once. By default, Illustrator only calculates shading and lighting for the actual surface of a 3D object, and not artwork that is mapped to a 3D surface. Illustrator does this purely for performance reasons. We mentioned earlier that Illustrator uses blends to calculate shading, and breaking down intricately mapped artwork and shading each element with blends takes quite a bit of processing. However, in order to get a realistic appearance, most likely you will want your mapped artwork to be shaded, even if it takes a bit longer to do so. Checking the Shade Artwork (slower) check box forces Illustrator to shade both the surface of your object and the mapped artwork as well. This setting applies to the entire object, and you don’t need to turn it on for each individual surface.

Tip: It’s easier if you create your symbols at the correct size before you map them to a surface; this way, you won’t have to worry about getting just the right size or position in the Map Art dialog.

Note: A surface can contain only one symbol. If you want multiple art items to appear on a single surface, you have to define a single symbol with all of the elements in it.

The last setting in the Map Art dialog is a check box marked Invisible Geometry, which is a slightly technical term. When this option is turned on, Illustrator hides the actual 3D object on your artboard and displays just the mapped artwork. The result is a symbol that appears to float in space. A good example of when this setting might be useful is when you want to make text appear as if it were wrapped around a sphere. When you’re happy with your artwork mapping settings, click OK to accept the settings in the Map Art dialog and then click OK to close the 3D dialog.

Why not enhance your skills by having a go at some other random, symmetrical objects?
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