Objects: add Volume object type, and prototypes for Hair and PointCloud

Only the volume object is exposed in the user interface. It is based on OpenVDB
internally. Drawing and rendering code will follow in another commit.
https://wiki.blender.org/wiki/Source/Objects/Volume
https://wiki.blender.org/wiki/Reference/Release_Notes/2.83/Volumes

Hair and PointCloud object types are hidden behind a WITH_NEW_OBJECT_TYPES
build option. These are unfinished, and included only to make it easier to
cooperate on development in the future and avoid tricky merges.
https://wiki.blender.org/wiki/Source/Objects/New_Object_Types

Ref T73201, T68981

Differential Revision: https://developer.blender.org/D6945

1 files changed, 77 insertions, 1 deletions

diff --git a/source/blender/editors/object/object_add.c b/source/blender/editors/object/object_add.c
index 17b6bfdb956..832854ec4cc 100644
--- a/source/blender/editors/object/object_add.c
+++ b/source/blender/editors/object/object_add.c
@@ -65,6 +65,7 @@
 #include "BKE_effect.h"
 #include "BKE_font.h"
 #include "BKE_gpencil.h"
+#include "BKE_hair.h"
 #include "BKE_key.h"
 #include "BKE_light.h"
 #include "BKE_lattice.h"
@@ -81,9 +82,11 @@
 #include "BKE_nla.h"
 #include "BKE_object.h"
 #include "BKE_particle.h"
+#include "BKE_pointcloud.h"
 #include "BKE_report.h"
 #include "BKE_scene.h"
 #include "BKE_speaker.h"
+#include "BKE_volume.h"
 
 #include "DEG_depsgraph.h"
 #include "DEG_depsgraph_build.h"
@@ -1459,9 +1462,82 @@ void OBJECT_OT_speaker_add(wmOperatorType *ot)
 /** \} */
 
 /* -------------------------------------------------------------------- */
-/** \name Delete Object Operator
+/** \name Add Hair Operator
+ * \{ */
+
+static int object_hair_add_exec(bContext *C, wmOperator *op)
+{
+  ushort local_view_bits;
+  float loc[3], rot[3];
+
+  if (!ED_object_add_generic_get_opts(C, op, 'Z', loc, rot, NULL, &local_view_bits, NULL)) {
+    return OPERATOR_CANCELLED;
+  }
+  Object *object = ED_object_add_type(C, OB_HAIR, NULL, loc, rot, false, local_view_bits);
+  object->dtx |= OB_DRAWBOUNDOX; /* TODO: remove once there is actual drawing. */
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_hair_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Hair";
+  ot->description = "Add a hair object to the scene";
+  ot->idname = "OBJECT_OT_hair_add";
+
+  /* api callbacks */
+  ot->exec = object_hair_add_exec;
+  ot->poll = ED_operator_objectmode;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+  ED_object_add_generic_props(ot, false);
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Add Point Cloud Operator
  * \{ */
 
+static int object_pointcloud_add_exec(bContext *C, wmOperator *op)
+{
+  ushort local_view_bits;
+  float loc[3], rot[3];
+
+  if (!ED_object_add_generic_get_opts(C, op, 'Z', loc, rot, NULL, &local_view_bits, NULL)) {
+    return OPERATOR_CANCELLED;
+  }
+  Object *object = ED_object_add_type(C, OB_POINTCLOUD, NULL, loc, rot, false, local_view_bits);
+  object->dtx |= OB_DRAWBOUNDOX; /* TODO: remove once there is actual drawing. */
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_pointcloud_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Point Cloud";
+  ot->description = "Add a point cloud object to the scene";
+  ot->idname = "OBJECT_OT_pointcloud_add";
+
+  /* api callbacks */
+  ot->exec = object_pointcloud_add_exec;
+  ot->poll = ED_operator_objectmode;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+  ED_object_add_generic_props(ot, false);
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Delete Object Operator
+ * \{ */
 /* remove base from a specific scene */
 /* note: now unlinks constraints as well */
 void ED_object_base_free_and_unlink(Main *bmain, Scene *scene, Object *ob)