BLOCK: An Open-Source Bi-Stage MLLM Character-to-Skin Pipeline for Minecraft

Researchers have released BLOCK, an open-source AI pipeline that generates pixel-perfect Minecraft character skins from text descriptions using a two-stage process involving multimodal language models and fine-tuned image generation. The system combines 3D preview synthesis with skin decoding and introduces EvolveLoRA, a progressive training approach for improved stability.

• →BLOCK is an open-source bi-stage pipeline that converts character concepts into Minecraft skins using AI models.
• →The system uses a large multimodal model for 3D preview synthesis and a fine-tuned FLUX.2 model for skin generation.
• →EvolveLoRA introduces a progressive training curriculum that improves model stability and efficiency across phases.
• →All prompt templates and fine-tuned weights are released for reproducible character-to-skin generation.
• →The pipeline addresses the complex problem of translating arbitrary character descriptions into pixel-perfect game assets.