Hi Achim,
Thanks!
Someone else already pointed it out. My plugins now also work with 5.1. The
funny thing is, that I’ve used both methods in my original plugins. And so I
only saw this vertical flip in some of the plugins.
But with the update from 5 to 5.1 Apple also changed other things that created
other patches to behave differently. For example does the Gradient patch render
the gradient in the other direction. You give the patch 2 colors and 2 points.
Then it renders an image, one pixel high and so and so many pixels wide. Under
5 the first given color was on the left, under 5.1 its on the right. To
compensate for this I have added an Info patch and conditionally switch the two
points if the Runtime version is not 5.0.
Thanks again!
Christoph Vonrhein
> On Dec 14, 2017, at 10:48 AM, Achim Breidenbach <ac...@boinx.com> wrote:
>
> Christoph,
>
> the problem is that in the Core image patch you are fetching pixels from the
> image input (sampler) but with destination coordinates. This won’t work,
> because those can be different from the image coordinates that can be flipped
> by a transformation matrix. This works correctly:
>
> kernel vec4 aaa(sampler image)
> {
> // vec2 dest = destCoord();
> vec2 dest = samplerCoord(image); // use coordinates from
> the sampler
> return (sample(image, dest)) * vec4(1.0, 0.0, 0.0, 1.0);
> }
>
> Not sure why this has worked before 5.1. Hope this helps.
>
> best,
>
> Achim Breidenbach
> Boinx Software Ltd.
>
>
>> On 15.11.2017, at 13:42, Christoph Vonrhein <c...@chv-electronics.de
>> <mailto:c...@chv-electronics.de>> wrote:
>>
>> Hi Achim,
>>
>> Sure.
>>
>> Download it here:
>>
>> http://www.chv-plugins.com/tmp/WhyFlip.zip
>> <http://www.chv-plugins.com/tmp/WhyFlip.zip>
>>
>> I have applied an image to the input patch. That’s why it’s a little bit
>> bigger.
>>
>> The top right patch (Extract R) can’t be any simpler. It’s rendered with a
>> Billboard on screen in the middle of the left side. You’ll see. It’s very
>> simple.
>>
>> The number in the rendered output is the QC Runtime version. 5 is good, 5.1
>> flips.
>>
>>
>> It works perfectly under OSX 10.7 with Quartz Composer Runtime version 5.
>> Under OSX 10.11 and up with QC Runtime 5.1 it flips the image vertically.
>>
>> Christoph Vonrhein
>> CHV-Plugins
>>
>>
>>
>>> On Nov 15, 2017, at 2:24 AM, Achim Breidenbach <ac...@boinx.com
>>> <mailto:ac...@boinx.com>> wrote:
>>>
>>> Hi Christoph,
>>>
>>> Can you provide a small sample composition which demonstrate the effect?
>>>
>>> Thanks!
>>>
>>> Achim Breidenbach
>>> Boinx Software Ltd.
>>>
>>>> On 15 Nov 2017, at 04:49, Christoph Vonrhein <c...@chv-electronics.de
>>>> <mailto:c...@chv-electronics.de>> wrote:
>>>>
>>>> Hi Apple,
>>>>
>>>> here is a 100% Quartz Composer related question:
>>>>
>>>> I have noticed that the “Core Image Filter” flips the rendered image
>>>> vertically depending on the runtime version of Quartz Composer.
>>>>
>>>> Quartz Composer Version 5 renders normally (OSX 10.7). Version 5.1 flips
>>>> the image vertically (OSX 10.11 and up).
>>>>
>>>> I don’t have a 10.8, 10.9 or 10.10 partition anymore. So I can’t tell from
>>>> which OSX version on this vertical flip happens. But to me it looks like
>>>> that the flip is related to the runtime version of Quartz Composer.
>>>>
>>>> This flip happens even with the most simple Core Image Filter, were I only
>>>> extract Red (for example) from an image.
>>>>
>>>> Can you give me some info about what might be the cause for this behavior?
>>>>
>>>> Thanks!
>>>> Christoph Vonrhein
>>>>
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>>
>
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