Select the shapes in the SmartArt graphic.
Click the Format tab under SmartArt Tools.

Click the Shape Effects button, and a live preview appears in the current shape when pointing to an effect.
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Click the effect from the gallery to apply it to the selected shape.

3D.
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Shadow.
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Reflection.
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Glow Colors.
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Soft edge.
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Bevel.
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3D Rotation.
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