What happened to all the camera transforms and ACEScc?

[NotTheMindProbe]

I'm using this config as an environment variable, with Blender. I just replaced the OCIO studio config file from last year with the latest studio one, and to my surprise I found a greatly reduced list of camera colour spaces, and no ACEScc. What happened? Is that intentional or the result of an issue on my end?

[carolalynn]

Are you sure you’re not using the CG config by mistake? We release two configs for users - CG and studio - and what you’re describing sounds like CG.

The CG config in fact contains no camera color spaces, as it is intended for fully computer generated work.

Let us know! :)

On Wed, Nov 15, 2023 at 14:12 NotTheMindProbe @.***> wrote:

I'm using this config as an environment variable, with Blender. I just replaced the OCIO studio config file from last year with the latest studio one, and to my surprise I found a greatly reduced list of camera colour spaces, and no ACEScc. What happened? Is that intentional or the result of an issue on my end?

Tasks

— Reply to this email directly, view it on GitHub https://github.com/AcademySoftwareFoundation/OpenColorIO-Config-ACES/issues/119, or unsubscribe https://github.com/notifications/unsubscribe-auth/AMPHU2E2R3KVVVQH2ZNWWLLYES5UJAVCNFSM6AAAAAA7MPDZO2VHI2DSMVQWIX3LMV43ASLTON2WKOZRHE4TINZVGQ3DGMI . You are receiving this because you are subscribed to this thread.Message ID: @.*** com>

[NotTheMindProbe]

This issue existed in studio-config-v2.1.0_aces-v1.3_ocio-v2.3.ocio. I have now tried this with studio-config-v2.0.0_aces-v1.3_ocio-v2.2.ocio and the behaviour is as I wanted. So it seems 2.3 might accidentally be the CG version instead of the studio version, or something with the way it's configured makes it only work with the CG colour spaces.

[carolalynn]

We’ll take a look! Thanks for checking.

On Wed, Nov 15, 2023 at 17:40 NotTheMindProbe @.***> wrote:

This issue existed in studio-config-v2.1.0_aces-v1.3_ocio-v2.3. I have now tried this with studio-config-v2.0.0_aces-v1.3_ocio-v2.2 and the behaviour is as I wanted. So it seems 2.3 might accidentally be the CG version instead of the studio version, or something with the way it's configured makes it only work with the CG colour spaces.

— Reply to this email directly, view it on GitHub https://github.com/AcademySoftwareFoundation/OpenColorIO-Config-ACES/issues/119#issuecomment-1812884578, or unsubscribe https://github.com/notifications/unsubscribe-auth/AMPHU2EFLVA63CL7RXSKZDLYETWA7AVCNFSM6AAAAAA7MPDZO2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQMJSHA4DINJXHA . You are receiving this because you commented.Message ID: <AcademySoftwareFoundation/OpenColorIO-Config-ACES/issues/119/1812884578@ github.com>

[KelSolaar]

Hi @NotTheMindProbe,

Where did you pull the files from?

The difference is as follows:

diff --git a/studio-config-v2.0.0_aces-v1.3_ocio-v2.1.ocio b/studio-config-v2.1.0_aces-v1.3_ocio-v2.3.ocio
index e0a2afb..a6c0094 100644
--- a/studio-config-v2.0.0_aces-v1.3_ocio-v2.1.ocio
+++ b/studio-config-v2.1.0_aces-v1.3_ocio-v2.3.ocio
@@ -1,13 +1,13 @@
-ocio_profile_version: 2.1
+ocio_profile_version: 2.3

 environment:
   {}
 search_path: ""
 strictparsing: true
 luma: [0.2126, 0.7152, 0.0722]
-name: studio-config-v2.0.0_aces-v1.3_ocio-v2.1
+name: studio-config-v2.1.0_aces-v1.3_ocio-v2.3
 description: |
-  Academy Color Encoding System - Studio Config [COLORSPACES v2.0.0] [ACES v1.3] [OCIO v2.1]
+  Academy Color Encoding System - Studio Config [COLORSPACES v2.1.0] [ACES v1.3] [OCIO v2.3]
   ------------------------------------------------------------------------------------------

   This "OpenColorIO" config is geared toward studios requiring a config that includes a wide variety of camera colorspaces, displays and looks.
@@ -49,6 +49,9 @@ displays:
   sRGB - Display:
     - !<View> {name: Raw, colorspace: Raw}
     - !<Views> [ACES 1.0 - SDR Video, ACES 1.0 - SDR Video (D60 sim on D65), Un-tone-mapped]
+  Display P3 - Display:
+    - !<View> {name: Raw, colorspace: Raw}
+    - !<Views> [ACES 1.0 - SDR Video, ACES 1.0 - SDR Video (D60 sim on D65), Un-tone-mapped]
   Rec.1886 Rec.709 - Display:
     - !<View> {name: Raw, colorspace: Raw}
     - !<Views> [ACES 1.0 - SDR Video, ACES 1.0 - SDR Video (D60 sim on D65), Un-tone-mapped]
@@ -74,9 +77,9 @@ displays:
     - !<View> {name: Raw, colorspace: Raw}
     - !<Views> [ACES 1.0 - SDR Cinema (D60 sim on DCI), ACES 1.1 - SDR Cinema (D65 sim on DCI), Un-tone-mapped]

-active_displays: [sRGB - Display, Rec.1886 Rec.709 - Display, Rec.1886 Rec.2020 - Display, Rec.2100-HLG - Display, Rec.2100-PQ - Display, ST2084-P3-D65 - Display, P3-D60 - Display, P3-D65 - Display, P3-DCI - Display]
+active_displays: [sRGB - Display, Display P3 - Display, Rec.1886 Rec.709 - Display, Rec.1886 Rec.2020 - Display, Rec.2100-HLG - Display, Rec.2100-PQ - Display, ST2084-P3-D65 - Display, P3-D60 - Display, P3-D65 - Display, P3-DCI - Display]
 active_views: [ACES 1.0 - SDR Video, ACES 1.0 - SDR Video (D60 sim on D65), ACES 1.1 - SDR Video (P3 lim), ACES 1.1 - SDR Video (Rec.709 lim), ACES 1.1 - HDR Video (1000 nits & Rec.2020 lim), ACES 1.1 - HDR Video (2000 nits & Rec.2020 lim), ACES 1.1 - HDR Video (4000 nits & Rec.2020 lim), ACES 1.1 - HDR Video (1000 nits & P3 lim), ACES 1.1 - HDR Video (2000 nits & P3 lim), ACES 1.1 - HDR Video (4000 nits & P3 lim), ACES 1.0 - SDR Cinema, ACES 1.1 - SDR Cinema (Rec.709 lim), ACES 1.0 - SDR Cinema (D60 sim on DCI), ACES 1.1 - SDR Cinema (D60 sim on D65), ACES 1.1 - SDR Cinema (D65 sim on DCI), ACES 1.1 - HDR Cinema (108 nits & P3 lim), Un-tone-mapped, Raw]
-inactive_colorspaces: [CIE-XYZ-D65, sRGB - Display, Rec.1886 Rec.709 - Display, Rec.1886 Rec.2020 - Display, Rec.2100-HLG - Display, Rec.2100-PQ - Display, ST2084-P3-D65 - Display, P3-D60 - Display, P3-D65 - Display, P3-DCI - Display]
+inactive_colorspaces: [CIE-XYZ-D65, sRGB - Display, Display P3 - Display, Rec.1886 Rec.709 - Display, Rec.1886 Rec.2020 - Display, Rec.2100-HLG - Display, Rec.2100-PQ - Display, ST2084-P3-D65 - Display, P3-D60 - Display, P3-D65 - Display, P3-DCI - Display]

 looks:
   - !<Look>
@@ -102,12 +105,14 @@ view_transforms:
       Component of ACES Output Transforms for SDR D65 video

       ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.RGBmonitor_100nits_dim.a1.0.3
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.DisplayP3_dim.a1.0.0
       ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.Rec709_100nits_dim.a1.0.3
       ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.Rec2020_100nits_dim.a1.0.3

       AMF Components
       --------------
       ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.RGBmonitor_100nits_dim.a1.0.3
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.DisplayP3_dim.a1.0.0
       ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.Rec709_100nits_dim.a1.0.3
       ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.Rec2020_100nits_dim.a1.0.3
     from_scene_reference: !<BuiltinTransform> {style: ACES-OUTPUT - ACES2065-1_to_CIE-XYZ-D65 - SDR-VIDEO_1.0}
@@ -118,11 +123,13 @@ view_transforms:
       Component of ACES Output Transforms for SDR D65 video simulating D60 white

       ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.RGBmonitor_D60sim_100nits_dim.a1.0.3
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.DisplayP3_D60sim_dim.a1.0.0
       ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.Rec709_D60sim_100nits_dim.a1.0.3

       AMF Components
       --------------
       ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.RGBmonitor_D60sim_100nits_dim.a1.0.3
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.DisplayP3_D60sim_dim.a1.0.0
       ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.Rec709_D60sim_100nits_dim.a1.0.3
     from_scene_reference: !<BuiltinTransform> {style: ACES-OUTPUT - ACES2065-1_to_CIE-XYZ-D65 - SDR-VIDEO-D60sim-D65_1.0}

@@ -322,6 +329,27 @@ display_colorspaces:
     allocation: uniform
     from_display_reference: !<BuiltinTransform> {style: DISPLAY - CIE-XYZ-D65_to_sRGB}

+  - !<ColorSpace>
+    name: Display P3 - Display
+    aliases: [displayp3_display]
+    family: Display
+    equalitygroup: ""
+    bitdepth: 32f
+    description: |
+      Convert CIE XYZ (D65 white) to Apple Display P3
+
+      AMF Components
+      --------------
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.DisplayP3_dim.a1.0.0
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.DisplayP3_dim.a1.0.0
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:ODT.Academy.DisplayP3_D60sim_dim.a1.0.0
+      ACEStransformID: urn:ampas:aces:transformId:v1.5:InvODT.Academy.DisplayP3_D60sim_dim.a1.0.0
+    isdata: false
+    categories: [file-io]
+    encoding: sdr-video
+    allocation: uniform
+    from_display_reference: !<BuiltinTransform> {style: DISPLAY - CIE-XYZ-D65_to_DisplayP3}
+
   - !<ColorSpace>
     name: Rec.1886 Rec.709 - Display
     aliases: [rec1886_rec709_display]
@@ -1392,6 +1420,30 @@ named_transforms:
       children:
         - !<LogCameraTransform> {log_side_slope: 0.07329248, log_side_offset: 0.51304736, lin_side_offset: 0.0075, lin_side_break: 0.00262409, linear_slope: 10.44426855, direction: inverse}

+  - !<NamedTransform>
+    name: C-Log2 - Curve
+    aliases: [clog2_crv, Input - Canon - Curve - Canon-Log2, crv_canonlog2]
+    description: |
+      Convert CLog2 Log (arbitrary primaries) to CLog2 Linear (arbitrary primaries)
+
+      CLFtransformID: urn:aswf:ocio:transformId:1.0:Canon:Input:CLog2-Curve_to_Linear:1.0
+    family: Input/Canon
+    categories: [file-io]
+    encoding: log
+    transform: !<BuiltinTransform> {style: CURVE - CANON_CLOG2_to_LINEAR}
+
+  - !<NamedTransform>
+    name: C-Log3 - Curve
+    aliases: [clog3_crv, Input - Canon - Curve - Canon-Log3, crv_canonlog3]
+    description: |
+      Convert CLog3 Log (arbitrary primaries) to CLog3 Linear (arbitrary primaries)
+
+      CLFtransformID: urn:aswf:ocio:transformId:1.0:Canon:Input:CLog3-Curve_to_Linear:1.0
+    family: Input/Canon
+    categories: [file-io]
+    encoding: log
+    transform: !<BuiltinTransform> {style: CURVE - CANON_CLOG3_to_LINEAR}
+
   - !<NamedTransform>
     name: V-Log - Curve
     aliases: [vlog_crv, Input - Panasonic - Curve - V-Log, crv_vlog]

[NotTheMindProbe]

@KelSolaar the OCIO config files? From the latest release over here on GitHub. In the assets https://github.com/AcademySoftwareFoundation/OpenColorIO-Config-ACES/releases/tag/v2.0.0

[doug-walker]

Are there any other Blender users that could confirm this behavior? Looking at the configs and trying them in various other apps does not show this issue.