Pointclouds: support mesh <-> pointcloud in convert operator

Just converts verts to points and vice versa.
Materials and Attribute layers are preserved (so for example if you set
custom radii on the pointcloud, convert to mesh, then convert back to
pointcloud, this will be preserved).

Also not add a Radius layer by default (it is still added and
filled when adding a pointcloud object from the menu), a global Radius
property that will be used if there is no radius attribute can be added
later. A Radius attribute can also be added in the pointcloud data
properties (and filled via python).

This will also add a new utility function that copies materials between
datablocks: BKE_id_materials_copy

ref T75717

Differential Revision: https://developer.blender.org/D7391

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_pointcloud.h b/source/blender/blenkernel/BKE_pointcloud.h
index 295744af5b4..f850e716ea6 100644
--- a/source/blender/blenkernel/BKE_pointcloud.h
+++ b/source/blender/blenkernel/BKE_pointcloud.h
@@ -32,7 +32,12 @@ struct Object;
 struct PointCloud;
 struct Scene;
 
+/* PointCloud datablock */
+extern const char *POINTCLOUD_ATTR_POSITION;
+extern const char *POINTCLOUD_ATTR_RADIUS;
+
 void *BKE_pointcloud_add(struct Main *bmain, const char *name);
+void *BKE_pointcloud_add_default(struct Main *bmain, const char *name);
 struct PointCloud *BKE_pointcloud_copy(struct Main *bmain, const struct PointCloud *pointcloud);
 
 struct BoundBox *BKE_pointcloud_boundbox_get(struct Object *ob);