我无法使新的CIDepthBlurEffect工作.我做错了什么,或者这是一个已知的问题？
以下是Objective-C中的代码：
NSDictionary *dict = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:[NSNumber numberWithBool:YES],[NSNumber numberWithBool:YES],nil] forKeys:[NSArray arrayWithObjects:kCIImageAuxiliaryDisparity,@"kCIImageApplyOrientationProperty",nil]];
CIImage *disparityImage = [CIImage imageWithData:imageData options:dict];
CIFilter *ciDepthBlurEffect = [CIFilter filterWithName:@"CIDepthBlurEffect"];
[ciDepthBlurEffect setDefaults];
[ciDepthBlurEffect setValue:disparityImage forKey:@"inputDisparityImage"];
[ciDepthBlurEffect setValue:originalImage forKey:@"inputImage"];
CIImage *outputImage = [ciDepthBlurEffect valueForKey:@"outputImage"];
EAGLContext *previewEaglContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
CIContext *context = [CIContext contextWithEAGLContext:previewEaglContext options:@{kCIContextWorkingFormat :[NSNumber numberWithInt:kCIFormatRGBAh]} ];
CGImageRef cgimg = [context createCGImage:disparityImage fromRect:[disparityImage extent]];
image = [[UIImage alloc] initWithCGImage:cgimg];
CGImageRelease(cgimg);
解决方法
Xcode 9 beta 2和iOS 11 beta 2的发布解决了这个问题.
