PyOpengl学习(五)：glLookAt和gluPerspective

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参看：https://blog.csdn.net/dcrmg/article/details/53106457

from OpenGL.GL import *
from OpenGL.GLUT import *
from OpenGL.GLU import *
from math import *


def myDisplay():
    glClearColor(0, 0, 0, 0)
    glClear(GL_COLOR_BUFFER_BIT)
    glColor3f(0, 1, 0)
    glLoadIdentity()
    gluLookAt(5, 5, 5, 0, 0, 0, 0, 1, 0)
    glutWireTeapot(1.3)
    # glFlush()
    glutSwapBuffers()

def reshape(w, h):
    glViewport(0, 0, w, h)
    glMatrixMode(GL_PROJECTION)
    glLoadIdentity()
    gluPerspective(45, w / h, 4, 10)
    glMatrixMode(GL_MODELVIEW)
    glLoadIdentity
    gluLookAt(0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)


def main():
    glutInit(sys.argv)
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE)
    glutInitWindowPosition(0, 0)
    glutInitWindowSize(800, 800)
    glutCreateWindow(b"gluPerspective")
    glutDisplayFunc(myDisplay)
    glutReshapeFunc(reshape)
    glutMainLoop()


main()