
[Bug] Translucent blocks do not cull sides when connected to a different translucent block
unilock opened this issue ยท 4 comments
Version Info
- Minecraft: 1.21.1
- Fusion: 1.2.9
What mod loader are you using?: NeoForge
Are you using OptiFine: No
Description of the Bug
When two different types of translucent blocks are made to connect (via match_block
), the rear block's faces are not completely culled.
Steps to Reproduce
- Install this resource pack: ConnectedCopperGratesFusion.zip
- Place waxed and unwaxed copper grates adjacent to one another
- The textures connect, but the face of the rear block (from the player's perspective) is not culled
Screenshots

Is this not the same is in vanilla? I believe copper grates always show those faces.
Yes, it is the same in vanilla. Is there no way to make the waxed and unwaxed variants of copper grates connect seamlessly, then?
Whether quads for a given side get culled is unrelated to what textures are used in the block model. In general, a side gets culled if there is a block placed on that side for which the occlusion shape fully covers the side of the block in question.
Vanilla overwrites this behaviour for certain blocks like glass, which would not have faces between glass culled otherwise, through code.
There is currently nothing in Fusion which allows you to overwrite the culling behaviour for a block, so I am afraid there is nothing that can be done about those faces currently.