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CDL Transform is not sufficient for ACES specification. #407

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KevinJW opened this issue May 16, 2016 · 1 comment
Open

CDL Transform is not sufficient for ACES specification. #407

KevinJW opened this issue May 16, 2016 · 1 comment
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Needs Discussion Needs discussion before implmentation, which could result in changes, or a decision not to proceed. To Close temp label to help triage closable issues for review

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@KevinJW
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KevinJW commented May 16, 2016 •
edited

there is an issue when using OCIO based CDL transforms in ACEScc space.

As described by the ACEScc specification http://www.oscars.org/science-technology/aces/aces-documentation appendix B, values below 0 are supposed to be passed as-is through the power, however the current implementation clamps the output to 0.

Kevin
@KevinJW
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KevinJW commented May 16, 2016

Note this is not a bug per se as the ASC CDL spec says to clamp, the ACEScc spec says not to.

Kevin

@KevinJW KevinJW changed the title CDL Transform not sufficient for ACES specification. CDL Transform is not sufficient for ACES specification. Jun 3, 2016
@scoopxyz scoopxyz added the Needs Discussion Needs discussion before implmentation, which could result in changes, or a decision not to proceed. label Jan 25, 2017
@hodoulp hodoulp added the v2.0 label May 8, 2018
@hodoulp hodoulp assigned hodoulp and unassigned hodoulp May 8, 2018
@carolalynn carolalynn added To Close temp label to help triage closable issues for review and removed v2.0 labels Feb 7, 2024
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