Spectating mobs that has shaders with fabulous graphics makes the screen dark if the mob is in a block
When you spectate a mob that has shaders when you spectate inside them(creepers, endermen etc) with fabulous graphics, the screen gradually turns dark.
You can reproduce this by making summoning a creeper and put a block on its head level, and spectate inside it.
Created Issue:
Spectating mobs that has shaders with fabulous graphics
When you spectate a mob that has shaders when you spectate inside them(creepers, endermen etc) with fabulous graphics, the screen gradually turns dark.
relates to
When you spectate a mob that has shaders when you spectate inside them(creepers, endermen etc) with fabulous graphics, the screen gradually turns dark.
You can reproduce this by making summoning a creeper and put a block on its head level, and spectate inside it.
Spectating mobs that has shaders with fabulous graphics makes the screen dark if the mob is in a block
Thank you for your report!
However, this issue is Invalid.You have posted a feature request or a suggestion. This site is for bug reports only.
For suggestions, please visit Minecraft Suggestions on Reddit or visit the Feedback website.Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
relates to

Did it become night time?
Nope, still day, it's just that the screen turns black
Driver is quite outdated, please check if it happens with a more up-to-date driver: https://www.nvidia.co.uk/Download/index.aspx?lang=en-uk
Hi!
I can confirm! here is a video of it occurring: https://youtu.be/9k5qETXhadY. All the redstone bits in the video are just to prevent the creeper from dying. It's not necessary to reproduce the bug.
I'm sure that there is a simpler way to reproduce this, but this is the best I could come up with.
How to reproduce
Relates to MC-46503.
Fixed in 21w10a.