above iOS9 have filters like "CIZoomBlur" "CICMYKHalftone",but iOS8 didn't;resetDefault to some animated filters

[akerdi]

I use SCSwipeableFilterView to handle layout a mutableComposition ,layout that just fine.But the filters added to it ,could be nil.

• will it be a way to add GPUImage to the filters?

• or when in iOS8 that CIFilter do not apply filters with what we want,how i can do this fine

• ps:when animated filters,how i can resetDefault some filter i added to the animates? I come up with below:

` [cmykHalftone addAnimationForParameterKey:@"inputSharpness" startValue:@0.64 endValue:@0.8 startTime:0 duration:4];

    [cmykHalftone addAnimationForParameterKey:@"inputUCR" startValue:@0.6 endValue:@0.85 startTime:0 duration:4];

    [cmykHalftone addAnimationForParameterKey:@"inputGCR" startValue:@0.3 endValue:@0.8 startTime:0 duration:4];

    [cmykHalftone addAnimationForParameterKey:@"inputWidth" startValue:@30 endValue:@80 startTime:0 duration:4];`

and I invalid it by doing below,but since didn't work.

` [cmykHalftone addAnimationForParameterKey:@"inputSharpness" startValue:@0 endValue:@0 startTime:4 duration:duradion-4];

[cmykHalftone addAnimationForParameterKey:@"inputUCG" startValue:@0 endValue:@0 startTime:4 duration:duradion-4];

[cmykHalftone addAnimationForParameterKey:@"inputGCR" startValue:@0 endValue:@0 startTime:4 duration:duradion-4];

[cmykHalftone addAnimationForParameterKey:@"inputWidth" startValue:@0 endValue:@0 startTime:4 duration:duradion-4];`

sincerely

[akerdi]

i keep cmykHalftone filter running in a "while < asset.duration"loop,and perfectly answer my third question.ga ga