Makes a new Pixi program
The shader program
A hash that stores where UBOs are bound to on the program.
holds the uniform data which contains uniform locations and current uniform values used for caching and preventing unneeded GPU commands
a place where dirty ticks are stored for groups If a tick here does not match with the Higher level Programs tick, it means we should re upload the data.
uniformGroups holds the various upload functions for the shader. Each uniform group and program have a unique upload function generated.
A hash for lazily-generated uniform uploading functions.
Destroys this program