when look up:

normal:

outside look up:

outside normal:

Seems only work on glass?

Don't assume this issue affects everyone. I'm unable to reproduce the problem you're reporting. Could you please provide more information to help me reproduce it? Mods, versions, object configurations, steps to follow, etc.

Perhaps some uncommon or non-standard Minecraft option you are using, or even from the shader itself, a mod, or some texture pack. It is important to provide all this information before reporting an error so that it can be reproduced. It's obvious that such a noticeable error would have been spotted already.

不要假设这个问题会影响到每个人。我无法重现您报告的问题。您能否提供更多信息来帮助我重现它？Mod、版本、对象配置、要遵循的步骤等。

也许你正在使用一些不常见或非标准的 Minecraft 选项，甚至来自着色器本身、一个 mod 或一些纹理包。在报告错误之前提供所有这些信息非常重要，以便可以重现该错误。很明显，这样一个明显的错误已经被发现了。

I don't know how to export more game data, but I can directly export the pack I'm using,i disabled shader when i play but you can enable it to check?it should be the same as my settings

failed to upload file so i just give an link:
https://drive.google.com/file/d/153xO34TUWG5nfm-sLXekmfZjLqofdRnW/view?usp=sharing

running on pc:
i5-12400f
32GB DDR4 2667MHz
GTX 1050Ti
JDK 21 21.0.3/JDK 17 17.0.3(both tried)

My suggestion is that, first of all, try running a world without any mods. Just use the shader mod, using Minecraft's default settings and the shader's default settings, all to see if the problem reappears. Also, please let me know what version of Minecraft you're using, and which loader (OptiFine, Iris)."

"Your problem is very strange, and it's possible that a combination of drivers or hardware is causing it. I'm almost certain there's nothing in the shader itself causing that behavior.