Top/Bottom face lighting is swapped when shaders are enabled
Sollace opened this issue ยท 1 comments
What happened?
Running the game normally with shaders disabled, I see the top faces of custom cuboids appearing correctly (the top face is light and the bottom is dark), however when I turn shaders on I see that these two are swapped.
I've tried to debug whether this is something on my end, but any changes I make to change the lighting to appear correctly with shaders only results in them appearing swapped in vanilla (without iris+sodium/shaders) so it's my suspicion that the condition for lighting is possibly reversed for these two faces somewhere within iris.
For reference, in the vanilla game lighting assignments for the top and bottom faces are:
Top = Direction.DOWN
Bottom = Direction.UP
Screenshots
Without shaders:
With shaders:
Log output
No response
Minecraft Version
ex. Minecraft 1.20.1
Iris Version
ex. iris-mc1.20-1.6.4.jar
Operating System
ex. Linux (6.1.31-2-MANJARO)
What is your GPU?
Mesa Intel(R) UHD Graphics (TGL GT1) (Supports OpenGL 4.6 (Core Profile) Mesa 23.1.1 (git-fa55e3c026))
Additional context
No response
