diff --git a/wrap/gl/trimesh.h b/wrap/gl/trimesh.h
index 2bcc3ec9..59a2c7fd 100644
--- a/wrap/gl/trimesh.h
+++ b/wrap/gl/trimesh.h
@@ -746,16 +746,19 @@ void DrawPoints()
     if (nm==NMPerVert)
       {
         glEnableClientState (GL_NORMAL_ARRAY);
-        glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->N()[0]));
+		if (m->vert.size() != 0)
+			glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->N()[0]));
       }
     if (cm==CMPerVert)
       {
         glEnableClientState (GL_COLOR_ARRAY);
-        glColorPointer(4,GL_UNSIGNED_BYTE,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->C()[0]));
+		if (m->vert.size() != 0)
+			glColorPointer(4,GL_UNSIGNED_BYTE,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->C()[0]));
       }
 
     glEnableClientState (GL_VERTEX_ARRAY);
-    glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->P()[0]));
+	if (m->vert.size() != 0)
+		glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->P()[0]));
 
     glDrawArrays(GL_POINTS,0,m->vn);