Shadow fixes

module.jai

@@ -41,6 +41,8 @@ Engine_Core :: struct {
     directional_light_buffer : Buffer_Handle;
     point_light_buffer : Buffer_Handle;
 
+    on_frustum_render: (Vector3, Vector3);
+
     procs: struct {
        on_scene_loaded: (*Scene, Engine_Mode);
        on_pre_scene_loaded: (*Scene, Engine_Mode);