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Chapter 14. Complex Projects > Subverting the Render Order

Subverting the Render Order

If you were to strictly adhere to the render order, certain effects would be impossible. Creating a believable drop shadow for a rotating object is a classic example. The rendering order dictates that the Drop Shadow effect is rendered before the rotation, a transform property. Unfortunately, this causes the shadow to rotate with the object. Because light sources don't ordinarily follow objects around, the effect looks unnatural (Figure 14.11). To solve the problem, you must defy the rendering order, so that the effects are calculated after transformations (Figure 14.12).

Figure 14.11. Because After Effects renders the drop shadow before rotation, the shadow also rotates and looks unnatural.



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