#import "GPUImageFilter.h"
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/** Performs a vignetting effect, fading out the image at the edges
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*/
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@interface GPUImageVignetteFilter : GPUImageFilter
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{
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GLint vignetteCenterUniform, vignetteColorUniform, vignetteStartUniform, vignetteEndUniform;
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}
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// the center for the vignette in tex coords (defaults to 0.5, 0.5)
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@property (nonatomic, readwrite) CGPoint vignetteCenter;
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// The color to use for the Vignette (defaults to black)
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@property (nonatomic, readwrite) GPUVector3 vignetteColor;
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// The normalized distance from the center where the vignette effect starts. Default of 0.5.
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@property (nonatomic, readwrite) CGFloat vignetteStart;
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// The normalized distance from the center where the vignette effect ends. Default of 0.75.
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@property (nonatomic, readwrite) CGFloat vignetteEnd;
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@end
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