diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index e67b0bea210..35e11bbdf2c 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -3229,6 +3229,24 @@ VS::BlendShapeMode RasterizerStorageGLES3::mesh_get_blend_shape_mode(RID p_mesh)
 	return mesh->blend_shape_mode;
 }
 
+uint32_t RasterizerStorageGLES3::mesh_surface_get_stride_in_array(RID p_mesh, int p_surface, int p_array_index) const {
+	Mesh *mesh = mesh_owner.getornull(p_mesh);
+	ERR_FAIL_COND_V(!mesh, 0);
+	ERR_FAIL_INDEX_V(p_surface, mesh->surfaces.size(), 0);
+	ERR_FAIL_INDEX_V(p_array_index, VS::ARRAY_MAX, 0);
+
+	return mesh->surfaces[p_surface]->attribs[p_array_index].stride;
+}
+
+uint32_t RasterizerStorageGLES3::mesh_surface_get_offset_in_array(RID p_mesh, int p_surface, int p_array_index) const {
+	Mesh *mesh = mesh_owner.getornull(p_mesh);
+	ERR_FAIL_COND_V(!mesh, 0);
+	ERR_FAIL_INDEX_V(p_surface, mesh->surfaces.size(), 0);
+	ERR_FAIL_INDEX_V(p_array_index, VS::ARRAY_MAX, 0);
+
+	return mesh->surfaces[p_surface]->attribs[p_array_index].offset;
+}
+
 void RasterizerStorageGLES3::mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const PoolVector<uint8_t> &p_data) {
 
 	Mesh *mesh = mesh_owner.getornull(p_mesh);
@@ -3240,7 +3258,7 @@ void RasterizerStorageGLES3::mesh_surface_update_region(RID p_mesh, int p_surfac
 
 	PoolVector<uint8_t>::Read r = p_data.read();
 
-	glBindBuffer(GL_ARRAY_BUFFER, mesh->surfaces[p_surface]->array_id);
+	glBindBuffer(GL_ARRAY_BUFFER, mesh->surfaces[p_surface]->vertex_id);
 	glBufferSubData(GL_ARRAY_BUFFER, p_offset, total_size, r.ptr());
 	glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
 }
@@ -3404,6 +3422,7 @@ Vector<PoolVector<uint8_t> > RasterizerStorageGLES3::mesh_surface_get_blend_shap
 
 	return bsarr;
 }
+
 Vector<AABB> RasterizerStorageGLES3::mesh_surface_get_skeleton_aabb(RID p_mesh, int p_surface) const {
 
 	const Mesh *mesh = mesh_owner.getornull(p_mesh);
@@ -3455,6 +3474,7 @@ void RasterizerStorageGLES3::mesh_remove_surface(RID p_mesh, int p_surface) {
 
 	mesh->instance_change_notify();
 }
+
 int RasterizerStorageGLES3::mesh_get_surface_count(RID p_mesh) const {
 
 	const Mesh *mesh = mesh_owner.getornull(p_mesh);
@@ -3468,6 +3488,7 @@ void RasterizerStorageGLES3::mesh_set_custom_aabb(RID p_mesh, const AABB &p_aabb
 	ERR_FAIL_COND(!mesh);
 
 	mesh->custom_aabb = p_aabb;
+	mesh->instance_change_notify();
 }
 
 AABB RasterizerStorageGLES3::mesh_get_custom_aabb(RID p_mesh) const {
diff --git a/drivers/gles3/rasterizer_storage_gles3.h b/drivers/gles3/rasterizer_storage_gles3.h
index 80df21941b4..7b8a09af154 100644
--- a/drivers/gles3/rasterizer_storage_gles3.h
+++ b/drivers/gles3/rasterizer_storage_gles3.h
@@ -693,7 +693,6 @@ public:
 		AABB custom_aabb;
 		mutable uint64_t last_pass;
 		SelfList<MultiMesh>::List multimeshes;
-
 		_FORCE_INLINE_ void update_multimeshes() {
 
 			SelfList<MultiMesh> *mm = multimeshes.first();
@@ -723,6 +722,8 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, VS::BlendShapeMode p_mode);
 	virtual VS::BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const;
 
+	virtual uint32_t mesh_surface_get_stride_in_array(RID p_mesh, int p_surface, int p_array_index) const;
+	virtual uint32_t mesh_surface_get_offset_in_array(RID p_mesh, int p_surface, int p_array_index) const;
 	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const PoolVector<uint8_t> &p_data);
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material);
diff --git a/servers/visual/rasterizer.h b/servers/visual/rasterizer.h
index 0b37d266e77..38849721f88 100644
--- a/servers/visual/rasterizer.h
+++ b/servers/visual/rasterizer.h
@@ -252,6 +252,8 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, VS::BlendShapeMode p_mode) = 0;
 	virtual VS::BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const = 0;
 
+	virtual uint32_t mesh_surface_get_stride_in_array(RID p_mesh, int p_surface, int p_array_index) const = 0;
+	virtual uint32_t mesh_surface_get_offset_in_array(RID p_mesh, int p_surface, int p_array_index) const = 0;
 	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const PoolVector<uint8_t> &p_data) = 0;
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) = 0;
@@ -277,6 +279,7 @@ public:
 	virtual AABB mesh_get_custom_aabb(RID p_mesh) const = 0;
 
 	virtual AABB mesh_get_aabb(RID p_mesh, RID p_skeleton) const = 0;
+
 	virtual void mesh_clear(RID p_mesh) = 0;
 
 	/* MULTIMESH API */
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index ec0d02ed2ad..c2bf1110f06 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -97,6 +97,7 @@ public:
 #define DISPLAY_CHANGED \
 	changes++;
 #endif
+	//	print_line(String("CHANGED: ") + __FUNCTION__);
 
 #define BIND0R(m_r, m_name) \
 	m_r m_name() { return BINDBASE->m_name(); }
@@ -218,6 +219,8 @@ public:
 	BIND2(mesh_set_blend_shape_mode, RID, BlendShapeMode)
 	BIND1RC(BlendShapeMode, mesh_get_blend_shape_mode, RID)
 
+	BIND3RC(uint32_t, mesh_surface_get_stride_in_array, RID, int, int)
+	BIND3RC(uint32_t, mesh_surface_get_offset_in_array, RID, int, int)
 	BIND4(mesh_surface_update_region, RID, int, int, const PoolVector<uint8_t> &)
 
 	BIND3(mesh_surface_set_material, RID, int, RID)
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index 48f0ec46f3b..3ba761e4f3a 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -64,7 +64,7 @@ class VisualServerWrapMT : public VisualServer {
 
 	int pool_max_size;
 
-	//#define DEBUG_SYNC
+//#define DEBUG_SYNC
 
 	static VisualServerWrapMT *singleton_mt;
 
@@ -152,6 +152,8 @@ public:
 	FUNC2(mesh_set_blend_shape_mode, RID, BlendShapeMode)
 	FUNC1RC(BlendShapeMode, mesh_get_blend_shape_mode, RID)
 
+	FUNC3RC(uint32_t, mesh_surface_get_stride_in_array, RID, int, int)
+	FUNC3RC(uint32_t, mesh_surface_get_offset_in_array, RID, int, int)
 	FUNC4(mesh_surface_update_region, RID, int, int, const PoolVector<uint8_t> &)
 
 	FUNC3(mesh_surface_set_material, RID, int, RID)
diff --git a/servers/visual_server.cpp b/servers/visual_server.cpp
index a48f1cccae2..200475742b3 100644
--- a/servers/visual_server.cpp
+++ b/servers/visual_server.cpp
@@ -1569,6 +1569,9 @@ void VisualServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("mesh_get_blend_shape_count", "mesh"), &VisualServer::mesh_get_blend_shape_count);
 	ClassDB::bind_method(D_METHOD("mesh_set_blend_shape_mode", "mesh", "mode"), &VisualServer::mesh_set_blend_shape_mode);
 	ClassDB::bind_method(D_METHOD("mesh_get_blend_shape_mode", "mesh"), &VisualServer::mesh_get_blend_shape_mode);
+	ClassDB::bind_method(D_METHOD("mesh_surface_get_stride_in_array", "mesh", "surface", "array_index"), &VisualServer::mesh_surface_get_stride_in_array);
+	ClassDB::bind_method(D_METHOD("mesh_surface_get_offset_in_array", "mesh", "surface", "array_index"), &VisualServer::mesh_surface_get_offset_in_array);
+	ClassDB::bind_method(D_METHOD("mesh_surface_update_region", "mesh", "surface", "offset", "data"), &VisualServer::mesh_surface_update_region);
 	ClassDB::bind_method(D_METHOD("mesh_surface_set_material", "mesh", "surface", "material"), &VisualServer::mesh_surface_set_material);
 	ClassDB::bind_method(D_METHOD("mesh_surface_get_material", "mesh", "surface"), &VisualServer::mesh_surface_get_material);
 	ClassDB::bind_method(D_METHOD("mesh_surface_get_array_len", "mesh", "surface"), &VisualServer::mesh_surface_get_array_len);
diff --git a/servers/visual_server.h b/servers/visual_server.h
index 968cb852ed9..424de4ab631 100644
--- a/servers/visual_server.h
+++ b/servers/visual_server.h
@@ -265,6 +265,8 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, BlendShapeMode p_mode) = 0;
 	virtual BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const = 0;
 
+	virtual uint32_t mesh_surface_get_stride_in_array(RID p_mesh, int p_surface, int p_array_index) const = 0;
+	virtual uint32_t mesh_surface_get_offset_in_array(RID p_mesh, int p_surface, int p_array_index) const = 0;
 	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const PoolVector<uint8_t> &p_data) = 0;
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) = 0;