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, 11 insertions, 2 deletions

diff --git a/source/blender/makesdna/DNA_customdata_types.h b/source/blender/makesdna/DNA_customdata_types.h
index 4d0d66f29ff..5ee16c2631d 100644
--- a/source/blender/makesdna/DNA_customdata_types.h
+++ b/source/blender/makesdna/DNA_customdata_types.h
@@ -76,7 +76,7 @@ typedef struct CustomData {
    * MUST be >= CD_NUMTYPES, but we cant use a define here.
    * Correct size is ensured in CustomData_update_typemap assert().
    */
-  int typemap[43];
+  int typemap[47];
   /** Number of layers, size of layers array. */
   int totlayer, maxlayer;
   /** In editmode, total size of all data layers. */
@@ -147,7 +147,13 @@ typedef enum CustomDataType {
   CD_CUSTOMLOOPNORMAL = 41,
   CD_SCULPT_FACE_SETS = 42,
 
-  CD_NUMTYPES = 43,
+  /* Hair and PointCloud */
+  CD_LOCATION = 43,
+  CD_RADIUS = 44,
+  CD_HAIRCURVE = 45,
+  CD_HAIRMAPPING = 46,
+
+  CD_NUMTYPES = 47,
 } CustomDataType;
 
 /* Bits for CustomDataMask */
@@ -203,6 +209,9 @@ typedef enum CustomDataType {
 /** Multires loop data. */
 #define CD_MASK_MULTIRES_GRIDS (CD_MASK_MDISPS | CD_GRID_PAINT_MASK)
 
+/* All data layers. */
+#define CD_MASK_ALL (~0LL)
+
 typedef struct CustomData_MeshMasks {
   uint64_t vmask;
   uint64_t emask;