How do shaders work in Minecraft?

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Tags

1. #launch
2. #optifine
3. #packs
4. #version
5. #settings
6. #install
7. #choose
8. #video
9. #appear
10. #installed
11. #shader
12. #shaders
13. #minecraft
14. #shaderpack
15. #click
16. #location
17. #texture
18. #folder