Re: Motion Color parameter round-tripping
Re: Motion Color parameter round-tripping
- Subject: Re: Motion Color parameter round-tripping
- From: Paul Miller <email@hidden>
- Date: Thu, 01 May 2014 17:37:32 -0500
- Organization: FXTECH
On 5/1/2014 5:29 PM, Darrin Cardani wrote:
On May 1, 2014, at 3:18 PM, Paul Miller <email@hidden> wrote:
On 5/1/2014 4:56 PM, Darrin Cardani wrote:
It’s converting them between color spaces. I believe that the values you send to -addColorParameter: are in sRGB because that’s the color space that the user interface operates in. But your filter will process them in either linear or gamma-corrected RGB (depending on your -properties) with Rec. 709 primaries rather than sRGB primaries.
But if I say I work in rec709 shouldn't it assume my default colors are also in rec709 and not convert them for me? It seems wrong to munge my default colors and give me different ones.
Can you give me an implementation of the reverse of your function so I can pre-reverse-munge my defaults (when I define the parameter) so I get back what I gave you initially?
Yeah, I agree that it’s weird for setting some parameter values. I think the assumption is that you’ll pick a default via the color picker. Like, you’ll make a version of the plug-in with the color picker, and you’ll either play with it, or give it to a designer or beta tester, and they’ll pick some value from it that they think should be the default. In that case, you’d want to be able to just enter the numbers from the UI into your code without converting from sRGB to Rec. 709.
Yeah, I'm afraid your assumptions about how it will be done vs. how we
actually do it are off a bit.
Can't we just have a developer-friendly way of doing this stuff, like
FCP7 had? Like set a flag in our Info.plist and have FCP just expose all
of our groups, input pots, and other parameters the way we intended?
What you have might be nice for power-users, but it literally makes me
want to jump in front of a bus. If you read a tweet "Paul Miller killed
by bus", you don't want that on your conscious do you?
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