RE: IKFilterUIView - Problem with text fields
RE: IKFilterUIView - Problem with text fields
- Subject: RE: IKFilterUIView - Problem with text fields
- From: paul morel <email@hidden>
- Date: Fri, 12 Mar 2010 17:56:41 +0100
- Importance: Normal
Hi all,I reply to my own question!Actually I managed to find what I was looking for. Look my first point below to understand what I was talking about. My problem didn't really come from the IKFilterUIView but more from the way I was applying the CIKernel in the CIFilter !
here is what I wrote : cikernel : kernel vec4 MyProcessingKernel(sampler src, float k)
so I thought I should call it like that : CIImage * outputImage = [self apply:_MyProcessingFilterKernel , src, [inputK floatValue],
kCIApplyOptionDefinition, [currIterationImage definition],
kCIApplyOptionExtent, [currIterationImage extent], nil];// I thought "[inputK floatValue]" would be ok to call the kernel because I never found something in the documentation saying I shoudln't do that!!
Finally I figured out that I should do that : CIVector * input = [[CIVector alloc] initWithX:[inputK floatValue]]; CIImage * outputImage = [self apply:_MyProcessingFilterKernel , src, input, kCIApplyOptionDefinition, [currIterationImage definition], kCIApplyOptionExtent, [currIterationImage extent], nil] So the idea is to use a CIVector in which we put the value and use this CIVector as a parameter for the filter!!!And it works now!! That was tricky!!
But regarding my second question I still have no idea! So any answer would be welcomed! ;)
Thanks,
Paul
Date: Tue, 9 Mar 2010 17:52:53 +0100
From: paul morel <email@hidden>
Subject: IKFilterUIView - Problem with text fields
To: <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset="iso-8859-1"
Hi, -I am developping a program where I use an IKFilterUIView to manage the user interface for filters. I also created my own filter according to the core image filter tutorials in the Mac Dev Center.
So far I have the user interface and when I interact with the sliders it works pretty well. But as soon as I try to type a value for the parameters in the text field and press 'return' is doesn't work and the program stops and I can't do anything else. In the console I have an error : " MyProcessingFilter: MyProcessing: argument #1 (p) should be a CIVector object" , whereas the argument p is clearly defined as a NSNumber and has never been defined as a CIVector! But this happens only with my own filter. When I try the same thing with filters already installed there is no problem with this text field! So the bindings are correct. So is there someone who would have an idea of what I could do or check or anything?
I tested the filter with the ImageUnitAnalyzer and it passed! So I don't think it comes from the filter.
-By the way, do you know how it is possible to choose how to display the values in the same text field, i.e. if my parameter is an integer value I don't want to see '4.12222212' but '4' when I move the slider.
Thanks
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