Question

我需要在屏幕上显示文字而不丢帧，频率为120 Hz。代码工作正常，直到我放入一些文本（菜单选项），然后它下降到47赫兹。我知道问题是我正在显示的文本量。我想在纹理中编写文本并将其显示为静态图像，但我不知道它是否可行。是吗？如果是这样的话？

我是OpenGl的新手，我开始阅读RED书（第7版），但我仍然试图了解一切是如何运作的。我的代码需要跨平台，只能使用Pyopengl / pyglet。任何帮助/建议将不胜感激。谢谢你的帮助。

def on_draw(dt):
    left = True
    right = False
    Rval = 0.0/255.0
    Gval = 153.0/255.0
    Bval = 0.0/255.0

    ShapePosition()

    glClear(GL_COLOR_BUFFER_BIT)
    glLoadIdentity()
    DrawChecker(Nbr = 16, Dark = 25.0/255, Light = 75.0/255)

    if ScreenSwap == 1:
        DrawQuestionMark(Rval, Gval, Bval, left)

        # Blue Line
        BlueLine(left)

        # Line to see if we are dropping frame
        DropFrameTest(left)
        pyglet.text.Label('Left', font_name='Times New Roman', font_size=34, x=(window.width*0.753), y= (window.height*0.05), anchor_x='left', anchor_y='center', color = (255, 0, 0, 150)).draw()
        ScreenSwap = 0

    else:     
        DrawQuestionMark(Rval, Gval, Bval, right)

        # Blue Line
        BlueLine(right)

        # Line to see if we are dropping frame
        DropFrameTest(right)
        pyglet.text.Label('Right', font_name='Times New Roman', font_size=34, x=(window.width*0.877), y= (window.height*0.05), anchor_x='left', anchor_y='center', color = (0, 255, 0, 150)).draw()
        ScreenSwap = 1

    fps = math.ceil(pyglet.clock.get_fps())
    labelStr = str(int(fps))+' Hz'
    pyglet.text.Label(labelStr, font_name='Times New Roman', font_size=36, x=(window.width*0.02), y= (window.height*0.05), anchor_x='left', anchor_y='center', color = (250, 250, 250, 150)).draw()    

    if menu:
        for i in range(len(labelSysInfo)): # labelSysInfo is a list of 8 strings of text
            pyglet.text.Label(labelSysInfo[i], font_name='Times New Roman', font_size=18, x=(window.width*0.75) , y= (window.height*0.95)-(i*window.height*0.03), anchor_x='left', anchor_y='center', color = (210, 210, 255, 255)).draw()

Answer 1

感谢Katzwinkel，我的代码现在以合适的帧速率运行。我只是保留了标签对象，只有在发生变化时才更新它们。

Pyglet：在写文本时避免缓慢FPS的替代方案？

1 个答案: