
Working with Effects and Filters
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About Upstream Filters
An upstream filter is applied to the shape and processed before the shape transformations
occur. It has the following characteristics:
• Upstream filter characteristics
• Applies to all shapes
• Applies to only one shape face
• Processes before shape transformations occur
• Uses OpenGL acceleration
• Provides better performance with both static and animation playback
• Filters remain visible even if animated
In the following example, the Ripple filter is nested within the Front Face track and is
applied upstream to the front face of the cube. The front face of the cube is spun to the left.
About Downstream Filters
A downstream filter is applied to the shape and processed after the shape transformations
occur. It has the following characteristics:
• Downstream filter characteristics
• Applies to all shapes
• Applies to the entire shape and all faces
• Processes after shape transformations occur
• Slows playback with both animation or static filters
• Filters are not visible to accelerate interaction
Nested
filters
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