From 33148f45e7af23f1e0607c656154a67a907d3934 Mon Sep 17 00:00:00 2001
From: Jakub Trllo <43494761+iLLiCiTiT@users.noreply.github.com>
Date: Tue, 21 Mar 2023 16:49:45 +0100
Subject: [PATCH] General: Environment variable for default OCIO configs
 (#4670)

* set 'BUILTIN_OCIO_ROOT' environment variable in start.py

We need to use simplified variant to fill default ocio root for OCIO configs to replace '{OPENPYPE_ROOT}/vendor/bin/ocioconfig/OpenColorIOConfigs' in settings.

The explicit path from OPENPYPE_ROOT disable option to change the path elsewhere without harm of settings change. Using 'BUILTIN_OCIO_ROOT' can be usd universally.

* use new env variable in OCIO settings
---
 openpype/settings/defaults/project_settings/global.json | 4 ++--
 start.py                                                | 9 +++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/openpype/settings/defaults/project_settings/global.json b/openpype/settings/defaults/project_settings/global.json
index 802b964375..0da1e0ea74 100644
--- a/openpype/settings/defaults/project_settings/global.json
+++ b/openpype/settings/defaults/project_settings/global.json
@@ -3,8 +3,8 @@
         "activate_global_color_management": false,
         "ocio_config": {
             "filepath": [
-                "{OPENPYPE_ROOT}/vendor/bin/ocioconfig/OpenColorIOConfigs/aces_1.2/config.ocio",
-                "{OPENPYPE_ROOT}/vendor/bin/ocioconfig/OpenColorIOConfigs/nuke-default/config.ocio"
+                "{BUILTIN_OCIO_ROOT}/aces_1.2/config.ocio",
+                "{BUILTIN_OCIO_ROOT}/nuke-default/config.ocio"
             ]
         },
         "file_rules": {
diff --git a/start.py b/start.py
index 4849a241d2..36e2540200 100644
--- a/start.py
+++ b/start.py
@@ -197,6 +197,15 @@ if "--headless" in sys.argv:
 elif os.getenv("OPENPYPE_HEADLESS_MODE") != "1":
     os.environ.pop("OPENPYPE_HEADLESS_MODE", None)
 
+# Set builtin ocio root
+os.environ["BUILTIN_OCIO_ROOT"] = os.path.join(
+    OPENPYPE_ROOT,
+    "vendor",
+    "bin",
+    "ocioconfig",
+    "OpenColorIOConfigs"
+)
+
 # Enabled logging debug mode when "--debug" is passed
 if "--verbose" in sys.argv:
     expected_values = (