Sorry, there's was a same report!
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(Please note that I'm foreigner, so I can't speak English well)
Look at my inventory, potion and enchanted item (sword) are shining.
It's normal, but their room is shining, too!
MC-33432
bug of shader 'bumpy'
Resolved
Duplicate
0
Joon-Ho Hwang
(Unassigned)
Unconfirmed
Minecraft 13w39b
Retrieved
@Joon-Ho Hwang:
Welcome to the internet. There are no "foreigners" here 🙂 ... and your English is understandable too.
To your ticket: It's a dublicate of MC-31669. Please use the search function before creating new tickets too see if the issue was already reported.