diff --git a/panda/src/gobj/preparedGraphicsObjects.cxx b/panda/src/gobj/preparedGraphicsObjects.cxx
index 1dd80bbe45..7cd621f1ba 100644
--- a/panda/src/gobj/preparedGraphicsObjects.cxx
+++ b/panda/src/gobj/preparedGraphicsObjects.cxx
@@ -177,6 +177,17 @@ dequeue_texture(Texture *tex) {
   return false;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: PreparedGraphicsObjects::is_texture_prepared
+//       Access: Public
+//  Description: Returns true if the texture has been prepared on
+//               this GSG, false otherwise.
+////////////////////////////////////////////////////////////////////
+bool PreparedGraphicsObjects::
+is_texture_prepared(const Texture *tex) const {
+  return tex->is_prepared((PreparedGraphicsObjects *)this);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: PreparedGraphicsObjects::release_texture
 //       Access: Public
@@ -354,6 +365,17 @@ dequeue_geom(Geom *geom) {
   return false;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: PreparedGraphicsObjects::is_geom_prepared
+//       Access: Public
+//  Description: Returns true if the vertex buffer has been prepared on
+//               this GSG, false otherwise.
+////////////////////////////////////////////////////////////////////
+bool PreparedGraphicsObjects::
+is_geom_prepared(const Geom *geom) const {
+  return geom->is_prepared((PreparedGraphicsObjects *)this);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: PreparedGraphicsObjects::release_geom
 //       Access: Public
@@ -531,6 +553,17 @@ dequeue_shader(ShaderExpansion *se) {
   return false;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: PreparedGraphicsObjects::is_shader_prepared
+//       Access: Public
+//  Description: Returns true if the shader has been prepared on
+//               this GSG, false otherwise.
+////////////////////////////////////////////////////////////////////
+bool PreparedGraphicsObjects::
+is_shader_prepared(const ShaderExpansion *shader) const {
+  return shader->is_prepared((PreparedGraphicsObjects *)this);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: PreparedGraphicsObjects::release_shader
 //       Access: Public
@@ -708,6 +741,17 @@ dequeue_vertex_buffer(GeomVertexArrayData *data) {
   return false;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: PreparedGraphicsObjects::is_vertex_buffer_prepared
+//       Access: Public
+//  Description: Returns true if the vertex buffer has been prepared on
+//               this GSG, false otherwise.
+////////////////////////////////////////////////////////////////////
+bool PreparedGraphicsObjects::
+is_vertex_buffer_prepared(const GeomVertexArrayData *data) const {
+  return data->is_prepared((PreparedGraphicsObjects *)this);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: PreparedGraphicsObjects::release_vertex_buffer
 //       Access: Public
@@ -885,6 +929,17 @@ dequeue_index_buffer(GeomPrimitive *data) {
   return false;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: PreparedGraphicsObjects::is_index_buffer_prepared
+//       Access: Public
+//  Description: Returns true if the index buffer has been prepared on
+//               this GSG, false otherwise.
+////////////////////////////////////////////////////////////////////
+bool PreparedGraphicsObjects::
+is_index_buffer_prepared(const GeomPrimitive *data) const {
+  return data->is_prepared((PreparedGraphicsObjects *)this);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: PreparedGraphicsObjects::release_index_buffer
 //       Access: Public
diff --git a/panda/src/gobj/preparedGraphicsObjects.h b/panda/src/gobj/preparedGraphicsObjects.h
index 6c836e58a9..6f406c72ce 100644
--- a/panda/src/gobj/preparedGraphicsObjects.h
+++ b/panda/src/gobj/preparedGraphicsObjects.h
@@ -73,6 +73,7 @@ PUBLISHED:
   void enqueue_texture(Texture *tex);
   bool is_texture_queued(const Texture *tex) const;
   bool dequeue_texture(Texture *tex);
+  bool is_texture_prepared(const Texture *tex) const;
   void release_texture(TextureContext *tc);
   int release_all_textures();
   int get_num_queued_textures() const;
@@ -83,6 +84,7 @@ PUBLISHED:
   void enqueue_geom(Geom *geom);
   bool is_geom_queued(const Geom *geom) const;
   bool dequeue_geom(Geom *geom);
+  bool is_geom_prepared(const Geom *geom) const;
   void release_geom(GeomContext *gc);
   int release_all_geoms();
   int get_num_queued_geoms() const;
@@ -93,6 +95,7 @@ PUBLISHED:
   void enqueue_shader(ShaderExpansion *shader);
   bool is_shader_queued(const ShaderExpansion *shader) const;
   bool dequeue_shader(ShaderExpansion *shader);
+  bool is_shader_prepared(const ShaderExpansion *shader) const;
   void release_shader(ShaderContext *sc);
   int release_all_shaders();
   int get_num_queued_shaders() const;
@@ -103,6 +106,7 @@ PUBLISHED:
   void enqueue_vertex_buffer(GeomVertexArrayData *data);
   bool is_vertex_buffer_queued(const GeomVertexArrayData *data) const;
   bool dequeue_vertex_buffer(GeomVertexArrayData *data);
+  bool is_vertex_buffer_prepared(const GeomVertexArrayData *data) const;
   void release_vertex_buffer(VertexBufferContext *vbc);
   int release_all_vertex_buffers();
   int get_num_queued_vertex_buffers() const;
@@ -115,6 +119,7 @@ PUBLISHED:
   void enqueue_index_buffer(GeomPrimitive *data);
   bool is_index_buffer_queued(const GeomPrimitive *data) const;
   bool dequeue_index_buffer(GeomPrimitive *data);
+  bool is_index_buffer_prepared(const GeomPrimitive *data) const;
   void release_index_buffer(IndexBufferContext *ibc);
   int release_all_index_buffers();
   int get_num_queued_index_buffers() const;