Fix #19571 (reported by Markus Ilmola):

Added missing callbacks. Was leading to crashs when the raytree was empty.

2 files changed, 10 insertions, 2 deletions

diff --git a/source/blender/render/intern/raytrace/rayobject.cpp b/source/blender/render/intern/raytrace/rayobject.cpp
index 621fd3f794e..d8880b51c6c 100644
--- a/source/blender/render/intern/raytrace/rayobject.cpp
+++ b/source/blender/render/intern/raytrace/rayobject.cpp
@@ -559,6 +559,9 @@ static float RE_rayobject_empty_cost(RayObject *o)
 	return 0.0;
 }
 
+static void RE_rayobject_empty_hint_bb(RayObject *o, RayHint *hint, float *min, float *max)
+{}
+
 static RayObjectAPI empty_api =
 {
 	RE_rayobject_empty_intersect,
@@ -566,7 +569,8 @@ static RayObjectAPI empty_api =
 	NULL, //static void RE_rayobject_instance_done(RayObject *o);
 	RE_rayobject_empty_free,
 	RE_rayobject_empty_bb,
-	RE_rayobject_empty_cost
+	RE_rayobject_empty_cost,
+	RE_rayobject_empty_hint_bb
 };
 
 static RayObject empty_raytree = { &empty_api, {0, 0} };
diff --git a/source/blender/render/intern/source/rayobject_instance.c b/source/blender/render/intern/source/rayobject_instance.c
index 9329d110870..e2f4dc5a9dd 100644
--- a/source/blender/render/intern/source/rayobject_instance.c
+++ b/source/blender/render/intern/source/rayobject_instance.c
@@ -41,6 +41,9 @@ static void RE_rayobject_instance_free(RayObject *o);
 static void RE_rayobject_instance_bb(RayObject *o, float *min, float *max);
 static float RE_rayobject_instance_cost(RayObject *o);
 
+static void RE_rayobject_instance_hint_bb(RayObject *o, RayHint *hint, float *min, float *max)
+{}
+
 static RayObjectAPI instance_api =
 {
 	RE_rayobject_instance_intersect,
@@ -48,7 +51,8 @@ static RayObjectAPI instance_api =
 	NULL, //static void RE_rayobject_instance_done(RayObject *o);
 	RE_rayobject_instance_free,
 	RE_rayobject_instance_bb,
-	RE_rayobject_instance_cost
+	RE_rayobject_instance_cost,
+	RE_rayobject_instance_hint_bb	
 };
 
 typedef struct InstanceRayObject