.GSH File Extension

A GSH file is a shader included in a Wii U video game. It is used to produce in-game visual effects. GSH files are often paired with accompanying .GTX files.

Shaders are programs that tell a game how to render pixels in different conditions, to produce lighting, shadow, and texture effects. Many Wii U games use shaders saved as GSH files. For example, Mario Kart 8 uses GSH shaders.

NOTE: GSH stands for GX2 SHader.

GSH files are not meant to be opened by players.