Nodes: Add vector support to Map Range node

This replaces lost functionality from the old GN Attribute Map Range node.
This also adds vector support to the shader version of the node.

Notes:
This breaks forward compatibility as this node now uses data storage.

Reviewed By: HooglyBoogly, brecht

Differential Revision: https://developer.blender.org/D12760

1 files changed, 16 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_300.c b/source/blender/blenloader/intern/versioning_300.c
index a42a2d9b95f..bc3cd7a09cb 100644
--- a/source/blender/blenloader/intern/versioning_300.c
+++ b/source/blender/blenloader/intern/versioning_300.c
@@ -2432,6 +2432,22 @@ void blo_do_versions_300(FileData *fd, Library *UNUSED(lib), Main *bmain)
         }
       }
     }
+
+    /* Add node storage for map range node. */
+    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
+      LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
+        if (node->type == SH_NODE_MAP_RANGE) {
+          if (node->storage == NULL) {
+            NodeMapRange *data = MEM_callocN(sizeof(NodeMapRange), __func__);
+            data->clamp = node->custom1;
+            data->data_type = CD_PROP_FLOAT;
+            data->interpolation_type = node->custom2;
+            node->storage = data;
+          }
+        }
+      }
+    }
+    FOREACH_NODETREE_END;
   }
 
   if (!MAIN_VERSION_ATLEAST(bmain, 301, 5)) {