Differential D7361 Diff 23506 source/blender/blenkernel/intern/mesh_convert.c

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source/blender/blenkernel/intern/mesh_convert.c

Show First 20 Lines • Show All 1,149 Lines • ▼ Show 20 Lines	switch (object->type) {
default:		default:
/* Object does not have geometry data. */		/* Object does not have geometry data. */
return NULL;		return NULL;
}		}
if (new_mesh == NULL) {		if (new_mesh == NULL) {
/* Happens in special cases like request of mesh for non-mother meta ball. */		/* Happens in special cases like request of mesh for non-mother meta ball. */
return NULL;		return NULL;
}		}

/* The result must have 0 users, since it's just a mesh which is free-dangling data-block.		/* The result must have 0 users, since it's just a mesh which is free-dangling data-block.
* All the conversion functions are supposed to ensure mesh is not counted. */		* All the conversion functions are supposed to ensure mesh is not counted. */
BLI_assert(new_mesh->id.us == 0);		BLI_assert(new_mesh->id.us == 0);

		/* It is possible that mesh came from modifier stack evaluation, which preserves edit_mesh
		* pointer (which allows draw manager to access edit mesh when drawing). Normally this does
		* not cause ownership problems because evaluated object runtime is keeping track of the real
		* ownership.
		*
		* Here we are constructing a mesh which is supposed to be iondependent, which means no shared
		* ownership is allowed, so we make sure edit mesh is reset to NULL (which is similar to as if
		* one duplicates the objects and applies all the modifiers). */
		new_mesh->edit_mesh = NULL;

return new_mesh;		return new_mesh;
}		}

static int foreach_libblock_make_original_callback(LibraryIDLinkCallbackData *cb_data)		static int foreach_libblock_make_original_callback(LibraryIDLinkCallbackData *cb_data)
{		{
ID **id_p = cb_data->id_pointer;		ID **id_p = cb_data->id_pointer;
if (*id_p == NULL) {		if (*id_p == NULL) {
return IDWALK_RET_NOP;		return IDWALK_RET_NOP;
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