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, 32 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_ID.c b/source/blender/makesrna/intern/rna_ID.c
index bd5c7e755d6..9a660153a3b 100644
--- a/source/blender/makesrna/intern/rna_ID.c
+++ b/source/blender/makesrna/intern/rna_ID.c
@@ -75,6 +75,11 @@ const EnumPropertyItem rna_enum_id_type_items[] = {
     {ID_SPK, "SPEAKER", ICON_SPEAKER, "Speaker", ""},
     {ID_TXT, "TEXT", ICON_TEXT, "Text", ""},
     {ID_TE, "TEXTURE", ICON_TEXTURE_DATA, "Texture", ""},
+#ifdef WITH_NEW_OBJECT_TYPES
+    {ID_HA, "HAIR", ICON_HAIR_DATA, "Hair", ""},
+    {ID_PT, "POINTCLOUD", ICON_POINTCLOUD_DATA, "PointCloud", ""},
+#endif
+    {ID_VO, "VOLUME", ICON_VOLUME_DATA, "Volume", ""},
     {ID_WM, "WINDOWMANAGER", ICON_WINDOW, "Window Manager", ""},
     {ID_WO, "WORLD", ICON_WORLD_DATA, "World", ""},
     {ID_WS, "WORKSPACE", ICON_WORKSPACE, "Workspace", ""},
@@ -246,6 +251,11 @@ short RNA_type_to_ID_code(const StructRNA *type)
   if (base_type == &RNA_FreestyleLineStyle) {
     return ID_LS;
   }
+#  ifdef WITH_NEW_OBJECT_TYPES
+  if (base_type == &RNA_Hair) {
+    return ID_HA;
+  }
+#  endif
   if (base_type == &RNA_Lattice) {
     return ID_LT;
   }
@@ -279,6 +289,11 @@ short RNA_type_to_ID_code(const StructRNA *type)
   if (base_type == &RNA_PaintCurve) {
     return ID_PC;
   }
+#  ifdef WITH_NEW_OBJECT_TYPES
+  if (base_type == &RNA_PointCloud) {
+    return ID_PT;
+  }
+#  endif
   if (base_type == &RNA_LightProbe) {
     return ID_LP;
   }
@@ -303,6 +318,9 @@ short RNA_type_to_ID_code(const StructRNA *type)
   if (base_type == &RNA_VectorFont) {
     return ID_VF;
   }
+  if (base_type == &RNA_Volume) {
+    return ID_VO;
+  }
   if (base_type == &RNA_WorkSpace) {
     return ID_WS;
   }
@@ -337,6 +355,12 @@ StructRNA *ID_code_to_RNA_type(short idcode)
       return &RNA_GreasePencil;
     case ID_GR:
       return &RNA_Collection;
+    case ID_HA:
+#  ifdef WITH_NEW_OBJECT_TYPES
+      return &RNA_Hair;
+#  else
+      return &RNA_ID;
+#  endif
     case ID_IM:
       return &RNA_Image;
     case ID_KE:
@@ -369,6 +393,12 @@ StructRNA *ID_code_to_RNA_type(short idcode)
       return &RNA_Palette;
     case ID_PC:
       return &RNA_PaintCurve;
+    case ID_PT:
+#  ifdef WITH_NEW_OBJECT_TYPES
+      return &RNA_PointCloud;
+#  else
+      return &RNA_ID;
+#  endif
     case ID_LP:
       return &RNA_LightProbe;
     case ID_SCE:
@@ -385,6 +415,8 @@ StructRNA *ID_code_to_RNA_type(short idcode)
       return &RNA_Text;
     case ID_VF:
       return &RNA_VectorFont;
+    case ID_VO:
+      return &RNA_Volume;
     case ID_WM:
       return &RNA_WindowManager;
     case ID_WO: