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| Torus Lens |
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The Torus Lens effect creates a torus-shaped lens and distorts the portion of the image over which the lens is placed.
Inputs
• Center: The location of the center of the area to be filtered.
• Radius: A number that specifies the outer radius of the torus lens. The default value is 160. The range is 0 through 500.
• Width: A number that specifies the relative distance from the inner radius to the outer radius of the torus lens. The default value is 80. The range is from 0.0 through 200.
• Refraction: A number that specifies the index of refraction of the material of the torus lens. The default value is 1.7. The range is –5.0 through 5.0. The approximate index of refraction values for various materials are: glass = 1.52, water = 1.33, air = 1.0, diamond = 2.42, ruby and sapphire = 1.76. The torus lens is assumed to be immersed in air. |
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