Fix T57457: animated image sequences not working in Eevee.

The dependency graph now handles updating image users to point to the current
frame, and tags images to be refreshed on the GPU. The image editor user is
still updated outside of the dependency graph.

We still do not support multiple image users using a different current frame
in the same image, same as 2.7. This may require adding a GPU image texture
cache to keep memory usage under control. Things like rendering an animation
while the viewport stays fixed at the current frame works though.

1 files changed, 15 insertions, 5 deletions

diff --git a/source/blender/makesrna/intern/rna_image.c b/source/blender/makesrna/intern/rna_image.c
index ce92ddefc8f..84001926839 100644
--- a/source/blender/makesrna/intern/rna_image.c
+++ b/source/blender/makesrna/intern/rna_image.c
@@ -21,6 +21,7 @@
 #include <stdlib.h>
 
 #include "DNA_image_types.h"
+#include "DNA_node_types.h"
 #include "DNA_scene_types.h"
 
 #include "BLI_utildefines.h"
@@ -66,6 +67,8 @@ static const EnumPropertyItem image_source_items[] = {
 #include "IMB_imbuf.h"
 #include "IMB_imbuf_types.h"
 
+#include "ED_node.h"
+
 static bool rna_Image_is_stereo_3d_get(PointerRNA *ptr)
 {
 	return BKE_image_is_stereo((Image *)ptr->data);
@@ -136,16 +139,23 @@ static void rna_Image_views_format_update(Main *bmain, Scene *scene, PointerRNA
 	BKE_image_release_ibuf(ima, ibuf, lock);
 }
 
-static void rna_ImageUser_update(Main *UNUSED(bmain), Scene *scene, PointerRNA *ptr)
+static void rna_ImageUser_update(Main *bmain, Scene *scene, PointerRNA *ptr)
 {
 	ImageUser *iuser = ptr->data;
+	ID *id = ptr->id.data;
 
 	BKE_image_user_frame_calc(iuser, scene->r.cfra);
 
-	if (ptr->id.data) {
-		/* Update material or texture for render preview. */
-		DEG_id_tag_update(ptr->id.data, 0);
-		DEG_id_tag_update(ptr->id.data, ID_RECALC_EDITORS);
+	if (id) {
+		if (GS(id->name) == ID_NT) {
+			/* Special update for nodetrees to find parent datablock. */
+			ED_node_tag_update_nodetree(bmain, (bNodeTree *)id, NULL);
+		}
+		else  {
+			/* Update material or texture for render preview. */
+			DEG_id_tag_update(id, 0);
+			DEG_id_tag_update(id, ID_RECALC_EDITORS);
+		}
 	}
 }