class MyRenderer（渲染器）：
def __init__(self, svbrdf, mesh, camera, size):
super().__init__(size, 0, 500, camera, show=True)
self.renderables = [Renderable(material, {
'a_position': vertex_positions,
'a_normal': vertex_normals,
'a_tangent': vertex_tangents,
'a_bitangent': vertex_bitangents,
'a_uv': vertex_uvs,
}, len(self.lights))]
def update_uniforms(self):
self.program['cam_pos'] = linalg.inv(self.camera.view_mat())[:3, 3]
self.program['u_view_mat'] = self.camera.view_mat().T
self.program['u_model_mat'] = np.eye(4)
self.program['u_perspective_mat'] = self.camera.perspective_mat().T
for i, light in enumerate(self.lights):
self.program['light_position[{}]'.format(i)] = light.position
self.program['light_intensity[{}]'.format(i)] = light.intensity
self.program['light_color[{}]'.format(i)] = light.color
def draw(self):
gloo.clear(color=(1, 1, 1))
for renderable in self.renderables:
self.program = renderable.program
self.update_uniforms()
self.program.draw(gl.GL_TRIANGLES)
该代码具有AttributeError（'MyRenderer'对象没有属性可渲染）
怎么解决？请帮我 .