New Grease Pencil object for 2D animation

This commit merge the full development done in greasepencil-object branch and include mainly the following features.

- New grease pencil object.
- New drawing engine.
- New grease pencil modes Draw/Sculpt/Edit and Weight Paint.
- New brushes for grease pencil.
- New modifiers for grease pencil.
- New shaders FX.
- New material system (replace old palettes and colors).
- Split of annotations (old grease pencil) and new grease pencil object.
- UI adapted to blender 2.8.

You can get more info here:

https://code.blender.org/2017/12/drawing-2d-animation-in-blender-2-8/
https://code.blender.org/2018/07/grease-pencil-status-update/

This is the result of nearly two years of development and I want thanks firstly the other members of the grease pencil team: Daniel M. Lara, Matias Mendiola and Joshua Leung for their support, ideas and to keep working in the project all the time, without them this project had been impossible.

Also, I want thanks other Blender developers for their help, advices and to be there always to help me, and specially to Clément Foucault, Dalai Felinto, Pablo Vázquez and Campbell Barton.

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_main_api.c b/source/blender/makesrna/intern/rna_main_api.c
index febe74f63c9..50aa3cb5b81 100644
--- a/source/blender/makesrna/intern/rna_main_api.c
+++ b/source/blender/makesrna/intern/rna_main_api.c
@@ -231,6 +231,9 @@ static Object *rna_Main_objects_new(Main *bmain, ReportList *reports, const char
 			case ID_LT:
 				type = OB_LATTICE;
 				break;
+			case ID_GD:
+				type = OB_GPENCIL;
+				break;
 			case ID_AR:
 				type = OB_ARMATURE;
 				break;
@@ -266,6 +269,11 @@ static Material *rna_Main_materials_new(Main *bmain, const char *name)
 	return (Material *)id;
 }
 
+static void rna_Main_materials_gpencil_data(Main *UNUSED(bmain), struct PointerRNA *ma)
+{
+	BKE_material_init_gpencil_settings((Material *)ma);
+}
+
 static const EnumPropertyItem *rna_Main_nodetree_type_itemf(bContext *UNUSED(C), PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), bool *r_free)
 {
 	return rna_node_tree_type_itemf(NULL, NULL, r_free);
@@ -783,6 +791,11 @@ void RNA_def_main_materials(BlenderRNA *brna, PropertyRNA *cprop)
 	parm = RNA_def_pointer(func, "material", "Material", "", "New material data-block");
 	RNA_def_function_return(func, parm);
 
+	func = RNA_def_function(srna, "create_gpencil_data", "rna_Main_materials_gpencil_data");
+	RNA_def_function_ui_description(func, "Add grease pencil material settings");
+	parm = RNA_def_pointer(func, "material", "Material", "", "Material");
+	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
+
 	func = RNA_def_function(srna, "remove", "rna_Main_ID_remove");
 	RNA_def_function_flag(func, FUNC_USE_REPORTS);
 	RNA_def_function_ui_description(func, "Remove a material from the current blendfile");