python OpenGL导入obj模型

可以使用PyOpenGL库来导入obj模型，具体代码如下：

from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
import numpy as np

def load_obj(filename):
    vertices = []
    normals = []
    faces = []
    with open(filename, 'r') as f:
        for line in f:
            if line.startswith('#'):
                continue
            values = line.split()
            if not values:
                continue
            if values[0] == 'v':
                vertices.append(list(map(float, values[1:4])))
            elif values[0] == 'vn':
                normals.append(list(map(float, values[1:4])))
            elif values[0] == 'f':
                face = []
                for v in values[1:]:
                    w = v.split('/')
                    face.append(int(w[0]))
                faces.append(face)
    return vertices, normals, faces

def draw_obj(filename):
    vertices, normals, faces = load_obj(filename)
    glBegin(GL_TRIANGLES)
    for face in faces:
        for i in range(3):
            glVertex3fv(vertices[face[i]-1])
            glNormal3fv(normals[face[i]-1])
    glEnd()

def display():
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
    glLoadIdentity()
    gluLookAt(0, 0, 5, 0, 0, 0, 0, 1, 0)
    glColor3f(1, 1, 1)
    draw_obj('model.obj')
    glutSwapBuffers()

glutInit()
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH)
glutInitWindowSize(640, 480)
glutCreateWindow(b"OpenGL Window")
glutDisplayFunc(display)
glEnable(GL_DEPTH_TEST)
glutMainLoop()

其中load_obj函数用于读取obj文件，draw_obj函数用于绘制obj模型。在display函数中调用draw_obj函数即可绘制模型。