Perhaps "int8" should be changed to "uint8".

[bragwang]

Hello dear author, I like this book very much. Thank you for your efforts.
When I run the project in Chapter 9 (understand open GL), I get an error until I change line 21 of the auxiliary file glutils.py: change "int8" to "uint8"。

pp2e/common/glutils.py
Line 21：imgData = numpy.array(list(img.getdata()), np.int8)

[mkvenkit]

Hi @bragwang, glad you like the book!

Could you tell me what OS, OS version, and Python version you are using? Also please post the exact error message here, and I will take a look. Thanks!

[bragwang]

Hi @bragwang, glad you like the book!

Could you tell me what OS, OS version, 和 Python version you are using? Also please post the exact error message here, 和 I will take a look. Thanks!

my os : windows 11
python version :3.13.2
error display :
PS E:\11> & E:/11/venv/Scripts/python.exe "e:/11/第九章-理解open GL/simpleglfw.py"
Starting simpleglfw. Press any key to toggle cut. Press ESC to quit.
Traceback (most recent call last):
File "e:\11\第九章-理解open GL\simpleglfw.py", line 298, in
main()
~~~~^^
File "e:\11\第九章-理解open GL\simpleglfw.py", line 293, in main
rw = RenderWindow()
File "e:\11\第九章-理解open GL\simpleglfw.py", line 234, in init
self.scene = Scene()
~~~~~^^
File "e:\11\第九章-理解open GL\simpleglfw.py", line 155, in init
self.texId = glutils.loadTexture('star.png')
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
File "e:\11\第九章-理解open GL\glutils.py", line 32, in loadTexture
imgData = numpy.array(list(img.getdata()), np.int8) #源代码
OverflowError: Python integer 255 out of bounds for int8