--- a/pytouhou/ui/renderer.pxd
+++ b/pytouhou/ui/renderer.pxd
@@ -4,19 +4,9 @@ cdef struct Vertex:
     unsigned char r, g, b, a
 
 
-cdef struct VertexFloat:
-    float x, y, z
-    float u, v
-    unsigned char r, g, b, a
-
-
 cdef class Renderer:
     cdef public texture_manager
+    cdef unsigned int vbo
     cdef Vertex *vertex_buffer
-    cdef object texture_key
-    cdef unsigned short blendfunc, nb_vertices
-    cdef VertexFloat *background_vertex_buffer
 
     cpdef render_elements(self, elements)
-    cpdef render_background(self)
-    cpdef prerender_background(self, background)