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ACES 1.0 OpenColorIO config - Siggraph 2015
- 1. ACES 1.0 OpenColorIO config Haarm-Pieter Duiker Duiker Research
- 5. Mapping ACES to OCIO ColorspaceTransform Colorspace Colorspace / Display / View TransformTransform / Look Colorspace OCIO concepts ACES components
- 6. Configuration Origin An ACES release is defined by a set of CTL files that define the transforms in the release. Python scripts, provided with the config, bake the results of the ACES CTL transforms into LUTs and wrap the results in an OCIO config structure
- 7. Configuration Structure Colorspaces grouped in Families Displays / Views Roles
- 8. Families of Colorspaces Family ACES ADX Look Output Input Utility Roles Aliases Colorspaces ACES2065-1, ACEScg, ACEScc, ACESproxy ADX10, ADX16 0.1, 0.2, and 0.7 ACES Look Transforms sRGB (D60 Sim.), Rec.709, Rec.2020, etc. ARRI, Canon, GoPro, Panasonic, RED, Sony Shapers, Generic spaces Aliases to the OCIO ‘role’ assignments Alias names with all lower case and no spaces.
- 9. Displays / Views • sRGB (D60 sim.) • DCDM • DCDM (P3 Gamut Clip) • P3-D60 • P3-DCI • P3-D60 PQ 1000 nits • P3-D60 PQ 2000 nits • P3-D60 PQ 4000 nits • Rec.2020 • Rec.709 • Rec.709 (D60 sim.) • Diagnostic Views • Raw • Log A single ‘ACES’ Display with views for each ACES Output Transform
- 10. ACES 1.0 OCIO config in Applications Config usage tested in • Nuke • Maya • Modo • Mari • Fusion Config generation tested on • OSX • Linux
- 11. ACES 1.0 in Nuke
- 12. ACES 1.0 in Nuke
- 13. ACES 1.0 in Maya
- 14. ACES 1.0 in Maya
- 15. Extras Pre-baked LUTs ● supporting ACES in applications that don’t (or didn’t) support OCIO ● Flame, Lustre, Houdini, Maya, Photoshop
- 16. Python scripts Python scripts generate OCIO configuration from CTL files that define the ACES transforms Allow customization of • LUT resolution • Display / View structure • Custom Looks
- 17. Thanks Steve Agland Joe Bogacz Jack Binks Scott Dyer Alex Fry Alex Forsythe Joseph Goldstone Jim Houston Thomas Mansencal Robert Molholm Nikola Milosevic Will McCown Graeme Nattress David Newman Sam Richards Erik Strauss Doug Walker Kevin Wheatley
- 19. Questions Sign up for email oscars.org/aces Twitter @AcademyACES Questions acessupport@oscars.org Haarm-Pieter Duiker Duiker Research hpd@duikerresearch.com
Notes de l'éditeur
- Cover Technical Goals as you talk through diagram Define a path from camera-native data to scene-referred imagery Process and store wide-gamut HDR color data Display consistently across multiple devices Provide a consistent basis for look authoring and application, on-set and in post
- ACES - a set of transforms mapping to or from the ACES 2065-1 colorspace, with a few clearly defined groups of transforms focused on input from cameras and output to displays.
- ACES - a set of transforms mapping to or from the ACES 2065-1 colorspace, with a few clearly defined groups of transforms focused on input from cameras and output to displays. OpenColorIO - an application-independent infrastructure for defining colorspaces as transforms to or from a central colorspace, with support for grouping colorspaces and other organizational controls.
- Screenshot Discussion of any points of interest Working space is implicit Read nodes don’t automatically convert to working space Need to turn off normal Read node linearization
- Screenshot Discussion of any points of interest Working space is implicit Read nodes don’t automatically convert to working space Need to turn off normal Read node linearization
- Screenshot Discuss any points of interest Families not supported = long drop downs Baked LUTs provided for previous releases ‘rendering’ role defines working space color picker
- Screenshot Discuss any points of interest Families not supported = long drop downs Baked LUTs provided for previous releases ‘rendering’ role defines working space color picker
- Transforms and colorspaces discussed here are implemented in the ACES 1.0 OpenColor IO configuration, linked to from the ACES site.