#import "GPUImageFilter.h" @interface GPUImageLineGenerator : GPUImageFilter { GLint lineWidthUniform, lineColorUniform; GLfloat *lineCoordinates; } // The width of the displayed lines, in pixels. The default is 1. @property(readwrite, nonatomic) CGFloat lineWidth; // The color of the lines is specified using individual red, green, and blue components (normalized to 1.0). The default is green: (0.0, 1.0, 0.0). - (void)setLineColorRed:(GLfloat)redComponent green:(GLfloat)greenComponent blue:(GLfloat)blueComponent; // Rendering - (void)renderLinesFromArray:(GLfloat *)lineSlopeAndIntercepts count:(NSUInteger)numberOfLines frameTime:(CMTime)frameTime; @end