GPencil: Add custom normal entry to bGPDspoint.

Also modified existing utility functions to take
care of the new surface normal interpolation and so on.

Reviewed By: Antonio Vazquez (antoniov)

Differential Revision: https://developer.blender.org/D11543

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_gpencil.c b/source/blender/makesrna/intern/rna_gpencil.c
index 19ed5f960cf..a2d6bbed70c 100644
--- a/source/blender/makesrna/intern/rna_gpencil.c
+++ b/source/blender/makesrna/intern/rna_gpencil.c
@@ -1288,6 +1288,14 @@ static void rna_def_gpencil_stroke_point(BlenderRNA *brna)
   RNA_def_property_ui_text(
       prop, "Vertex Color", "Color used to mix with point color to get final color");
   RNA_def_property_update(prop, NC_GPENCIL | ND_DATA, "rna_GPencil_update");
+
+  /* Surface normal. */
+  prop = RNA_def_property(srna, "custom_vector", PROP_FLOAT, PROP_COLOR);
+  RNA_def_property_array(prop, 3);
+  RNA_def_property_range(prop, 0.0f, 1.0f);
+  RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+  RNA_def_property_ui_text(prop, "Custom Vector", "Generic custom vector for various use cases");
+  RNA_def_property_update(prop, NC_GPENCIL | ND_DATA, "rna_GPencil_update");
 }
 
 static void rna_def_gpencil_stroke_points_api(BlenderRNA *brna, PropertyRNA *cprop)