That should not be necessary - you should be able to do it in one operation
using a single Colorspace node as the gamut remap and sRGB->XYZ will
concatenate into the same 3x3 matrix linear transform.
If you're doing something non-linear in the colorspace node like changing the
gamma response of the data then then application order can be important.
So this:
Colorspace {
primary_in sRGB primary_out DCI-P3
colorspace_in sRGB colorspace_out CIE-XYZ
}
Is equivalent to:
Colorspace {
primary_in sRGB primary_out DCI-P3
}
Colorspace {
colorspace_in sRGB colorspace_out CIE-XYZ
}
-jonathan
On Jun 7, 2012, at 7:59 AM, John Mateer wrote:
> Thanks for this. As per the other thread, I think I've found the solution --
> use two Colorspace nodes, the first to change the gamut from sRGB to P3 and
> the second to change the color space from Linear to CIE-XYZ. That seems to do
> the trick.
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