#import "GPUImageSmoothToonFilter.h"
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#import "GPUImageGaussianBlurFilter.h"
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#import "GPUImageToonFilter.h"
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@implementation GPUImageSmoothToonFilter
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@synthesize threshold;
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@synthesize blurRadiusInPixels;
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@synthesize quantizationLevels;
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@synthesize texelWidth;
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@synthesize texelHeight;
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- (id)init;
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{
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if (!(self = [super init]))
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{
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return nil;
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}
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// First pass: apply a variable Gaussian blur
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blurFilter = [[GPUImageGaussianBlurFilter alloc] init];
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[self addFilter:blurFilter];
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// Second pass: run the Sobel edge detection on this blurred image, along with a posterization effect
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toonFilter = [[GPUImageToonFilter alloc] init];
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[self addFilter:toonFilter];
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// Texture location 0 needs to be the sharp image for both the blur and the second stage processing
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[blurFilter addTarget:toonFilter];
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self.initialFilters = [NSArray arrayWithObject:blurFilter];
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self.terminalFilter = toonFilter;
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self.blurRadiusInPixels = 2.0;
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self.threshold = 0.2;
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self.quantizationLevels = 10.0;
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return self;
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}
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#pragma mark -
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#pragma mark Accessors
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- (void)setBlurRadiusInPixels:(CGFloat)newValue;
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{
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blurFilter.blurRadiusInPixels = newValue;
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}
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- (CGFloat)blurRadiusInPixels;
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{
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return blurFilter.blurRadiusInPixels;
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}
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- (void)setTexelWidth:(CGFloat)newValue;
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{
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toonFilter.texelWidth = newValue;
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}
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- (CGFloat)texelWidth;
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{
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return toonFilter.texelWidth;
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}
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- (void)setTexelHeight:(CGFloat)newValue;
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{
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toonFilter.texelHeight = newValue;
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}
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- (CGFloat)texelHeight;
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{
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return toonFilter.texelHeight;
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}
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- (void)setThreshold:(CGFloat)newValue;
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{
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toonFilter.threshold = newValue;
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}
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- (CGFloat)threshold;
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{
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return toonFilter.threshold;
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}
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- (void)setQuantizationLevels:(CGFloat)newValue;
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{
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toonFilter.quantizationLevels = newValue;
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}
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- (CGFloat)quantizationLevels;
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{
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return toonFilter.quantizationLevels;
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}
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@end
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