Eevee: LightCache: Initial Implementation

This separate probe rendering from viewport rendering, making possible to
run the baking in another thread (non blocking and faster).

The baked lighting is saved in the blend file. Nothing needs to be
recomputed on load.

There is a few missing bits / bugs:
- Cache cannot be saved to disk as a separate file, it is saved in the DNA
  for now making file larger and memory usage higher.
- Auto update only cubemaps does update the grids (bug).
- Probes cannot be updated individually (considered as dynamic).
- Light Cache cannot be (re)generated during render.

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/readfile.h b/source/blender/blenloader/intern/readfile.h
index 9c699db5583..10f0c7a2942 100644
--- a/source/blender/blenloader/intern/readfile.h
+++ b/source/blender/blenloader/intern/readfile.h
@@ -90,6 +90,7 @@ typedef struct FileData {
 	struct OldNewMap *libmap;
 	struct OldNewMap *imamap;
 	struct OldNewMap *movieclipmap;
+	struct OldNewMap *scenemap;
 	struct OldNewMap *soundmap;
 	struct OldNewMap *packedmap;
 
@@ -140,6 +141,8 @@ FileData *blo_openblendermemfile(struct MemFile *memfile, struct ReportList *rep
 void blo_clear_proxy_pointers_from_lib(Main *oldmain);
 void blo_make_image_pointer_map(FileData *fd, Main *oldmain);
 void blo_end_image_pointer_map(FileData *fd, Main *oldmain);
+void blo_make_scene_pointer_map(FileData *fd, Main *oldmain);
+void blo_end_scene_pointer_map(FileData *fd, Main *oldmain);
 void blo_make_movieclip_pointer_map(FileData *fd, Main *oldmain);
 void blo_end_movieclip_pointer_map(FileData *fd, Main *oldmain);
 void blo_make_sound_pointer_map(FileData *fd, Main *oldmain);