jpm files must be located within the optifine/cem folder.Ī jpm file is purely a part which can consist of multiple elements which can then be used by jem files when replacing parts. Jpm stands for JSON Part Model, which means that the file must be valid JSON. "rotate" will rotate the element on the axes the amount of degrees. "translate" will move the element the number of pixels on the specified axes. "attach" will default to false if left out, but if set to true will add the model to the part specified rather than replacing it. There is some other values that will come in handy which are: "attach":, "translate":, "rotate". You can replace #model with elements (explained further down), or with "model": "file_name.jpm". #model can be replaced one of two things, you can use a jpm file, or you can specify the model in-line by creating the elements within the jem file itself. #part must be replaced with one of the parts specified in the optifine's jem documentation.
Jem stands for JSON Entity Model, meaning that the file must be written in valid JSON.įirstly "models" is a required parameter which is an array, it will contain objects which then contain models and which parts they replace. You simply need to create a jem file named as the entity that you want to have a custom model, ie zombie.jem.Ī full list of entities and the names of the files can be found in the optifine's jem documentation along with a list of parts which can be replaced in each entity.
Working directory: all custom entity files will be placed into assets/minecraft/optifine/cem in your resourcepack.Ī jem file is required when entity modelling, it is the main file which specifies how to re-model an entity. To help there is some existing entity modelling test resourcepacks which you can use to help see how the files can be made: my tests, sp614x's tests, sp614x's tests #2, and a remodeled creeper I made. The parts that each entity has is different and the full list of parts can be found in optifine's jem documentation. Optifine's entity modelling allows you to replace or add to different parts of an entity, ie head, body, arm1, arm2, leg1, leg2. I hope to update this guide as time goes on, but currently this won't go too in depth with what you can do.
A quick guide to help get started with entity modelling in optifine.
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