Gelatin UI

Gelatin UI is a UI library that helps Minecraft mod developers build polished, animated screens without fighting the vanilla GUI code. It adds no gameplay content of its own. If you're a player, you only need it when another mod requires it.

Build screens from a clean, fluent API and a tree of reusable components. Layouts stay predictable, animations are easy to add, and dirty flags, bounds caching and culling keep rendering work down.

Features:

- Layout: VBox, HBox, panels, manual containers, scrolling and scale-to-fit
- Components: labels with text wrapping, buttons, checkboxes, text inputs, tabs, progress bars, and nine-slice sprites
- Minecraft rendering: high-resolution items, rotating item rings, player models and avatars
- Animation: smooth interpolation, keyframes and easing, plus ready-made effects like bounce, shake, spin, flip and glow
- 2D particles: physics, sprite and 3D item particles, and scale, alpha and color changes over a particle's lifetime
- Developer tools: in-game overlays for bounds, grid and padding, plus a culled element inspector