相关疑难解决方法(0)

我正在使用PyOpenGL开发一个项目,我正在尝试让OpenGL呈现一种启动画面.我决定的解决方案是绘制纹理2D矩形.不幸的是,似乎无论我做什么,都没有画出任何东西,我只是得到一个黑色的屏幕(所以我想有些东西被绘制,否则它将是一个透明的窗口,但它绝对不是我想要的).这是我班级的相关代码:

class ClassThing:
    def __init__(self):
        self.Splash = True
        glutInit(sys.argv)

    def TexFromPNG(self, filename):
        img = Image.open(filename)
        img_data = numpy.array(list(img.getdata()), numpy.uint8)

        texture = glGenTextures(1)
        glPixelStorei(GL_UNPACK_ALIGNMENT,1)
        glBindTexture(GL_TEXTURE_2D, texture)
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img.size[0], img.size[1], 0, GL_RGB, GL_UNSIGNED_BYTE, img_data)
        return texture

    def run(self):
        glutInitDisplayMode(GLUT_RGBA)

        glutInitWindowSize(256,224)
        self.window = glutCreateWindow("GL")
        glutDisplayFunc(self.draw)

        glClearColor(0,0,0,0)
        glEnable(GL_TEXTURE_2D)
        glEnable(GL_VERTEX_ARRAY)

        self.MainTex = glGenTextures(1)
        self.SplashTex = self.TexFromPNG("Resources/Splash.png")

        glutMainLoop()

    def draw(self):
        glClear(GL_COLOR_BUFFER_BIT)
        glLoadIdentity()
        if self.Splash:
            glBindTexture(GL_TEXTURE_2D, self.SplashTex)
        else:
            glBindTexture(GL_TEXTURE_2D, self.MainTex)

        glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR) …