LineArt: Filtering intersection lines using mask numbers

Mask value works just like transparency mask.

You are able to select intersection lines inside a
collection or, between collections.

Reviewed By: Sebastian Parborg (zeddb)

Differential Revision: https://developer.blender.org/D11309

1 files changed, 8 insertions, 5 deletions

diff --git a/source/blender/makesdna/DNA_collection_types.h b/source/blender/makesdna/DNA_collection_types.h
index aa91699ae40..1defa8b782b 100644
--- a/source/blender/makesdna/DNA_collection_types.h
+++ b/source/blender/makesdna/DNA_collection_types.h
@@ -46,9 +46,6 @@ typedef struct CollectionChild {
   struct Collection *collection;
 } CollectionChild;
 
-/**
- * \warning while the values seem to be flags, they aren't treated as flags.
- */
 enum eCollectionLineArt_Usage {
   COLLECTION_LRT_INCLUDE = 0,
   COLLECTION_LRT_OCCLUSION_ONLY = (1 << 0),
@@ -57,6 +54,10 @@ enum eCollectionLineArt_Usage {
   COLLECTION_LRT_NO_INTERSECTION = (1 << 3),
 };
 
+enum eCollectionLineArt_Flags {
+  COLLECTION_LRT_USE_INTERSECTION_MASK = (1 << 0),
+};
+
 typedef struct Collection {
   ID id;
 
@@ -74,8 +75,10 @@ typedef struct Collection {
   /* Runtime-only, always cleared on file load. */
   short tag;
 
-  /** Line Art engine specific */
-  short lineart_usage;
+  short lineart_usage;         /* eCollectionLineArt_Usage */
+  unsigned char lineart_flags; /* eCollectionLineArt_Flags */
+  unsigned char lineart_intersection_mask;
+  char _pad[6];
 
   int16_t color_tag;