From e37389de7721eed6d74c91c9c70a718af6a9846c Mon Sep 17 00:00:00 2001
From: Iyad Ahmed <iyadahmed2001>
Date: Tue, 24 Aug 2021 18:40:55 +0200
Subject: [PATCH] Fix T77022: node wranger error with texture files on
 different drives

Principled texture setup with relative path option would lead to this,
silently use an absolute path instead like other Blender operators.

Differential Revision: https://developer.blender.org/D12221
---
 node_wrangler.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/node_wrangler.py b/node_wrangler.py
index e26da88bd..c11565812 100644
--- a/node_wrangler.py
+++ b/node_wrangler.py
@@ -2716,7 +2716,7 @@ class NWAddPrincipledSetup(Operator, NWBase, ImportHelper):
 
     relative_path: BoolProperty(
         name='Relative Path',
-        description='Select the file relative to the blend file',
+        description='Set the file path relative to the blend file, when possible',
         default=True
     )
 
@@ -2816,10 +2816,10 @@ class NWAddPrincipledSetup(Operator, NWBase, ImportHelper):
         import_path = self.directory
         if self.relative_path:
             if bpy.data.filepath:
-                import_path = bpy.path.relpath(self.directory)
-            else:
-                self.report({'WARNING'}, 'Relative paths cannot be used with unsaved scenes!')
-                print('Relative paths cannot be used with unsaved scenes!')
+                try:
+                    import_path = bpy.path.relpath(self.directory)
+                except ValueError:
+                    pass
 
         # Add found images
         print('\nMatched Textures:')
-- 
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