LineArt: Shadow and related functionalities.

This patch includes the full shadow functionality for LineArt:

- Light contour and cast shadow lines.
- Lit/shaded region selection.
- Enclosed light/shadow shape calculation.
- Silhouette/anti-silhouette selection.
- Intersection priority based on shadow edge identifier.

Reviewed By: Sebastian Parborg (zeddb)

Differential Revision: https://developer.blender.org/D15109

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_gpencil_modifier.h b/source/blender/blenkernel/BKE_gpencil_modifier.h
index 96c405e46ec..6472c804e05 100644
--- a/source/blender/blenkernel/BKE_gpencil_modifier.h
+++ b/source/blender/blenkernel/BKE_gpencil_modifier.h
@@ -383,6 +383,8 @@ typedef struct GpencilLineartLimitInfo {
   char min_level;
   char max_level;
   short edge_types;
+  char shadow_selection;
+  char silhouette_selection;
 } GpencilLineartLimitInfo;
 
 GpencilLineartLimitInfo BKE_gpencil_get_lineart_modifier_limits(const struct Object *ob);