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Picophysics is a single-file physics library designed for game development on retro platforms like N64, PSX, and Dreamcast.
A detailed analysis of the implementation of the physics system in Sonic games: it runs efficiently on a 7MHz 68000 CPU based on predefined collision tiles and simple sensor rules, rather than real-time physics calculations. It also introduces design details such as level collision data, sensor system, dual loop implementation, and the author's progress on an Amiga port.
This paper introduces AlayaRenderer-Flash, a real-time generative world renderer that accelerates rendering from 0.56 FPS to 31.54 FPS using a few-step autoregressive streaming model and lightweight distilled codecs, enabling interactive play with a physics engine.
LavenderSim is a Python-first robotics simulation engine with a C++ core and web visualization, built almost entirely by GPT-5.6 Sol. It allows defining environments in Python without XML.
Erin Catto announces Box3D, an open-source 3D physics engine forked from Box2D, adding triangle mesh collision, height-field collision, and wide SIMD contact solver, built for use in Unreal Engine for the game 'The Legend of California'.
Japanese apparel giant ZOZO has open-sourced its internal top physics engine ppf-contact-solver, which specializes in solving contact and collision problems for fabrics, ropes, and soft bodies, with zero penetration. It supports Blender plugin and GPU acceleration, and can be used free of charge for virtual fashion, digital clothing, movie VFX, game physics, and more.
OpenAI releases Roboschool, an open-source robot simulation environment integrated with OpenAI Gym featuring twelve environments including enhanced humanoid locomotion tasks and multi-agent settings like Pong.