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.
Darrin
On May 1, 2014, at 2:52 PM, Paul Miller <paul(a)fxtech.com> wrote:
> If I create a color parameter in my filter with
> R=0.7647, G=0, B=0.349
>
> When I read the color parameter I get this:
> R=0.734, G=-0.0002, B=0.30894
>
> Why doesn't Motion like my default values?
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If I create a color parameter in my filter with
R=0.7647, G=0, B=0.349
When I read the color parameter I get this:
R=0.734, G=-0.0002, B=0.30894
Why doesn't Motion like my default values?
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Did I forget to do something, or is there a limit?
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I have an effect with three optional input parameters. In Motion I
created three Drop zones, assigned them, and published all the other
parameters. But the first drop zone is the only one that is showing up
in FCPX (and in the Project Inspector page in Motion where you can
re-order parameters).