Modifiers: Add option to directly specify a 2D transform for UVWarp

Currently the only option is to warp based on the transform of other
objects, which is inconvenient if you want to e.g. control it through
a driver - you need to set up a dummy object and go through that,
which is clunky and should be unneccessary.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D6690

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_280.c b/source/blender/blenloader/intern/versioning_280.c
index 886c7195d9e..8baea5c8c4b 100644
--- a/source/blender/blenloader/intern/versioning_280.c
+++ b/source/blender/blenloader/intern/versioning_280.c
@@ -4482,5 +4482,17 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
         }
       }
     }
+
+    /* Add 2D transform to UV Warp modifier. */
+    if (!DNA_struct_elem_find(fd->filesdna, "UVWarpModifierData", "float", "scale[2]")) {
+      for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
+        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+          if (md->type == eModifierType_UVWarp) {
+            UVWarpModifierData *umd = (UVWarpModifierData *)md;
+            copy_v2_fl(umd->scale, 1.0f);
+          }
+        }
+      }
+    }
   }
 }