- vd16 and alpha channels PS -> Nuke
Re: vd16 and alpha channels PS -> Nuke
Ashley Retallack <ashl...@...>
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> If you attempt to do a similar thing from within a Nuke node chain, the error would already be baked into the data buffer.
Does this include if you have raw switched on in the read node and than do the unpremult -> OCIOColorspace -> Premult method?
On 28 November 2013 19:43, Troy Sobotka <troy.s...@...>
On Nov 28, 2013 4:49 AM, "Ashley Retallack" <ashl...@...> wrote:
> Thanks for the reply. If I was to do this in a nuke context what would the process be, it this no different to doing an unpremult before color transform and a premult afterwards?
The predivide has to happen prior to TRC inversion.
If the issue is alpha / luminance based, the read node has a “Premultiplied” radio box.
This should take the associated alpha image, predivide it, apply the inverted TRC / transfer curve, then apply the alpha again.
If you attempt to do a similar thing from within a Nuke node chain, the error would already be baked into the data buffer.
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Ashley Retallack | Pipeline Engineer
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