Basic Alembic support

All in all, this patch adds an Alembic importer, an Alembic exporter,
and a new CacheFile data block which, for now, wraps around an Alembic
archive. This data block is made available through a new modifier ("Mesh
Sequence Cache") as well as a new constraint ("Transform Cache") to
somewhat properly support respectively geometric and transformation data
streaming from alembic caches.

A more in-depth documentation is to be found on the wiki, as well as a
 guide to compile alembic: https://wiki.blender.org/index.php/
User:Kevindietrich/AlembicBasicIo.

Many thanks to everyone involved in this little project, and huge shout
out to "cgstrive" for the thorough testings with Maya, 3ds Max, Houdini
and Realflow as well as @fjuhec, @jensverwiebe and @jasperge for the
custom builds and compile fixes.

Reviewers: sergey, campbellbarton, mont29

Reviewed By: sergey, campbellbarton, mont29

Differential Revision: https://developer.blender.org/D2060

1 files changed, 15 insertions, 1 deletions

diff --git a/source/blender/editors/io/io_ops.c b/source/blender/editors/io/io_ops.c
index a70a51a60be..d1e933517a9 100644
--- a/source/blender/editors/io/io_ops.c
+++ b/source/blender/editors/io/io_ops.c
@@ -30,11 +30,18 @@
 
 #include "io_ops.h"  /* own include */
 
+#include "WM_api.h"
+
 #ifdef WITH_COLLADA
 #  include "io_collada.h"
-#  include "WM_api.h"
 #endif
 
+#ifdef WITH_ALEMBIC
+#  include "io_alembic.h"
+#endif
+
+#include "io_cache.h"
+
 void ED_operatortypes_io(void) 
 {
 #ifdef WITH_COLLADA
@@ -42,4 +49,11 @@ void ED_operatortypes_io(void)
 	WM_operatortype_append(WM_OT_collada_export);
 	WM_operatortype_append(WM_OT_collada_import);
 #endif
+#ifdef WITH_ALEMBIC
+	WM_operatortype_append(WM_OT_alembic_import);
+	WM_operatortype_append(WM_OT_alembic_export);
+#endif
+
+	WM_operatortype_append(CACHEFILE_OT_open);
+	WM_operatortype_append(CACHEFILE_OT_reload);
 }