Perspective API Demo

The demo implements a handful of custom camera perspectives on top of the Perspective API. Movement keys move the camera, Space with Sneak raises and lowers it, and the drop-inventory keys roll the camera and rotate it around the view axis. The mod is meant as a reference for developers who want to write their own perspectives, and the source code is public. One perspective stays close to the vanilla third-person view, with the camera positioned lower-left so the player sits in a corner of the screen. Moving the mouse rotates the camera only, while the player turns toward the direction of movement.

The mouse scroll wheel changes the camera-to-player distance and the field of view at the same time, which keeps the player at the same apparent size and produces a Hitchcock, or dolly, zoom effect. The author notes that the free camera mode still allows breaking and placing blocks and treats this as intended rather than a bug. The mod is client-side only, so only the client needs it and servers run without it. It is published for Fabric, Forge and NeoForge across 10 release versions, 1.20.1 – 26.2, and is released under the MIT License. Mod Menu is an optional dependency.