python,OpenGL加载obj模型的代码
时间: 2024-02-04 07:02:18 浏览: 148
下面是一个使用Python和OpenGL加载obj模型文件的示例代码:
```python
import pygame
from OpenGL.GL import *
from OpenGL.GLU import *
def load_obj(filename):
vertices = []
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] == 'f':
faces.append([list(map(int, face.split('/'))) for face in values[1:]])
return vertices, faces
def draw_obj(filename):
vertices, faces = load_obj(filename)
glPushMatrix()
glBegin(GL_TRIANGLES)
for face in faces:
for vertex in face:
glVertex3fv(vertices[vertex[0] - 1])
glEnd()
glPopMatrix()
pygame.init()
display = (800, 600)
pygame.display.set_mode(display, pygame.DOUBLEBUF | pygame.OPENGL)
gluPerspective(45, (display[0]/display[1]), 0.1, 50.0)
glTranslatef(0.0, 0.0, -5)
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
draw_obj('model.obj')
pygame.display.flip()
pygame.time.wait(10)
```
这个示例使用了Pygame和OpenGL库。load_obj函数用于从obj文件中加载顶点和面数据,draw_obj函数用于绘制模型中的三角形面。在主循环中,我们设置透视投影矩阵和平移变换,然后绘制模型并刷新窗口。
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