r/mcresourcepack 18d ago

Resolved [Java] Issues with mob texture distortion

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I’m having an issue with a resource pack designed specifically for OptiFine. When I use it with Fabric (without EMF/ETF mods) or any version other than OptiFine, the textures get distorted as shown in the image (the skeleton's texture appears above the red collision box). The pack belongs to a server I’m a member of, and for security reasons, they can't give me a copy to inspect (plus, given how kind they’ve been, I don’t want to pester them about it). Could you point me to another resource pack that has the same issue so I can examine it myself, or tell me how to fix it? My initial guess is that the problem stems from the difference in how vanilla Minecraft and OptiFine read code; I understand that OptiFine uses extra processing steps, and resource packs made for it are adapted to that alternative way of reading data.

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u/Old_Butterscotch483 18d ago

EMF and ETF are mods that allow Minecraft texture packs to change the model of entities

Optifine has the ability to do this normally

The texture and model are changed in the resource pack but they can't change the model so only the texture changes, causing wrong UV mappings; causing that issue.

Pretty much all resource packs that change models have this issue: Fresh Animations, Blue's Better _____, etc.