python - Pyqt5 OpenGL 模型正在缩小

Question

我想模拟一个 3d 模型来执行滚动、俯仰和偏航。我有下面的代码，但我的四边形会随着时间的推移而缩小，直到它不再可见。这是我为清楚起见而制作的gif。我试图改变视角和翻译，但没有奏效。

from random import randint
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.uic import *
from OpenGL.GL import *
from OpenGL.GLUT import *
from OpenGL.GLU import *


class mainWindow(QMainWindow):
    def __init__(self, *args):
        super(mainWindow, self).__init__(*args)
        loadUi('UI/gl.ui', self)

    def setupUI(self):
        self.openGLWidget.initializeGL()
        self.init()
        self.openGLWidget.resizeGL(651, 551)
        self.openGLWidget.paintGL = self.paintGL
        timer = QTimer(self)
        timer.timeout.connect(self.openGLWidget.update)
        timer.start(1000)

    def init(self):
        glShadeModel(GL_SMOOTH)
        glClearColor(0.0, 0.0, 0.0, 0.0)
        glClearDepth(1.0)
        glEnable(GL_DEPTH_TEST)
        glDepthFunc(GL_LEQUAL)
        glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)

    def paintGL(self):
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
        glColor3f(1, 0, 0)

        random = randint(0, 178)
        roll = random  # self.data.OrientRoll[self.index]
        yaw = 0
        pitch = 0

        glRotatef(-roll, 0.00, 0.00, 1.00)
        glRotatef(pitch, 1.00, 0.00, 0.00)
        glRotatef(yaw, 0.00, 1.00, 0.00)

        glBegin(GL_QUADS)
        glColor3f(0.0, 1.0, 0.0)
        glVertex3f(1.0, 0.2, -1.0)
        glVertex3f(-1.0, 0.2, -1.0)
        glVertex3f(-1.0, 0.2, 1.0)
        glVertex3f(1.0, 0.2, 1.0)

        glColor3f(1.0, 0.5, 0.0)
        glVertex3f(1.0, -0.2, 1.0)
        glVertex3f(-1.0, -0.2, 1.0)
        glVertex3f(-1.0, -0.2, -1.0)
        glVertex3f(1.0, -0.2, -1.0)

        glColor3f(1.0, 0.0, 0.0)
        glVertex3f(1.0, 0.2, 1.0)
        glVertex3f(-1.0, 0.2, 1.0)
        glVertex3f(-1.0, -0.2, 1.0)
        glVertex3f(1.0, -0.2, 1.0)

        glColor3f(1.0, 1.0, 0.0)
        glVertex3f(1.0, -0.2, -1.0)
        glVertex3f(-1.0, -0.2, -1.0)
        glVertex3f(-1.0, 0.2, -1.0)
        glVertex3f(1.0, 0.2, -1.0)

        glColor3f(0.0, 0.0, 1.0)
        glVertex3f(-1.0, 0.2, 1.0)
        glVertex3f(-1.0, 0.2, -1.0)
        glVertex3f(-1.0, -0.2, -1.0)
        glVertex3f(-1.0, -0.2, 1.0)

        glColor3f(1.0, 0.0, 1.0)
        glVertex3f(1.0, 0.2, -1.0)
        glVertex3f(1.0, 0.2, 1.0)
        glVertex3f(1.0, -0.2, 1.0)
        glVertex3f(1.0, -0.2, -1.0)
        glEnd()
        gluPerspective(45, 1.0 * (651 / 551), 0.1, 100.0)

        glTranslatef(0.0, 0.0, -5)


app = QApplication(sys.argv)
window = mainWindow()
window.setupUI()
window.show()
sys.exit(app.exec_())

标签： pythonpyqtpyqt5pyopenglopengl-compat