def draw_arrays(self, mode=Unspecified, first=Unspecified, count=Unspecified, patch_vertices=Unspecified, renderer=Unspecified):
mode = getspecified(mode, self._mode)
first = getspecified(first, getspecified(self._first, 0))
count = getspecified(count, getspecified(self._count, 0))
patch_vertices = getspecified(patch_vertices, self._patch_vertices)
if mode == GL.GL_PATCHES:
GL.glPatchParameteri(GL.GL_PATCH_VERTICES, patch_vertices)
GL.glDrawArrays(mode, first, count)
def draw_indices_instanced(self, instances, mode=Unspecified, first=Unspecified, count=Unspecified, patch_vertices=Unspecified, renderer=Unspecified):
renderer.activate(self._ibo)
_type = self._ibo.type
_count = self._ibo.count
mode = getspecified(mode, self._mode)
first = getspecified(first, getspecified(self._first, 0))
count = getspecified(count, getspecified(self._count, _count))
patch_vertices = getspecified(patch_vertices, self._patch_vertices)
if mode == GL.GL_PATCHES:
GL.glPatchParameteri(GL.GL_PATCH_VERTICES, patch_vertices)
GL.glDrawElementsInstanced(mode, count, _type.dtype.type, ctypes.c_void_p(first * _type.dtype.nbytes), instances)
