Among all the Shape Effects in PowerPoint, the 3-D ones stand apart. For any of the 3-D effects to work, you must understand two important 3-D parameters. These two parameters are 3-D Rotation and 3-D Depth. Although you can rotate any shape that has a Depth of zero, you really cannot see any Depth within a flat object. Thus you must first rotate your object and then add Depth.
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