Minecraft texture pack ultra bright?

How can I set the brightness or the gamma for a texture pack so high that I can see everything. I already set it up at options.txt but it doesn't work with it.

You need a client for this, you can't do this with texture packs, they only change the appearance, not the behavior

Simply copy the Optifine Order from this Resource Pack into yours:

https://www.planetminecraft.com/...n-4444593/

For me it worked with options.txt.