Gamefromscratch·1yGodot Gets Jiggle Physics
Godot 4.4 introduces many new features, including jiggle physics, which can be easily implemented using the Spring Bone Simulator 3D. The update also includes improvements in embedded game windows, shader functionalities, and additional animation modifiers. This release is considered by some as the best version of Godot yet due to the numerous quality-of-life enhancements.
Code Bullet·34wI Made the Same Game in 10 MIN vs 1 HOUR vs 10 HOURS
A developer challenges himself to create the same naval combat game in three different time constraints: 10 minutes, 1 hour, and 10 hours using Unity. The progression shows how additional development time allows for better water physics, improved graphics, multiplayer functionality, and more polished gameplay mechanics. Each version is tested with a friend in multiplayer mode, revealing both the potential and limitations of rapid game development.
Two Minute Papers·32wThe Worst Bug In Games Is Now Gone Forever
A breakthrough collision detection method using cubic barriers and advanced mathematical techniques eliminates clipping issues in simulations with millions of contact points. The technique handles complex scenarios like twisted cloth, ribbons, and deformable objects without any geometry passing through itself, running on a single GPU. Developed by Dr. Ryoichi Ando and published at SIGGRAPH Asia, the research has practical applications in gaming, VFX, and automated fashion design, though it requires minutes per frame to compute.
Pezzza's Work·38wAI Cat Learning to Run
A developer creates AI agents that learn to walk using neural networks and evolutionary algorithms. The project simulates cat-like creatures with virtual muscles and joints, using Box2D physics engine for stability. Through iterative training with 1,000 agents running in parallel across 14 CPU cores, the AI gradually develops from basic movement to smooth walking gaits. The training process shows how agents evolve from struggling with joint coordination to achieving efficient locomotion patterns over 240+ iterations.
Hacker News·33wnewton-physics/newton: An open-source, GPU-accelerated physics simulation engine built upon NVIDIA Warp, specifically targeting roboticists and simulation researchers.
Newton is a GPU-accelerated physics simulation engine built on NVIDIA Warp, designed for robotics and simulation research. The project extends Warp's deprecated sim module and integrates MuJoCo Warp as its primary backend. Key features include GPU-based computation, OpenUSD support, differentiability, and extensibility. Currently in active beta under the Linux Foundation with Apache 2.0 licensing, Newton was initiated by Disney Research, Google DeepMind, and NVIDIA. The engine includes extensive examples covering basic physics, robot simulations, cloth dynamics, inverse kinematics, material point method (MPM), and differentiable simulation scenarios.
Two Minute Papers·45wRoblox Solved The Physics Problem That Stumped Everyone!
Roblox and University of Utah developed Augmented Vertex Block Descent (AVBD), a physics simulation method that solves complex collision and constraint problems that stumped previous techniques. The method can simulate millions of particles at 100 FPS on consumer graphics cards and correctly handles challenging scenarios like heavy objects on light chains, chain mail collisions, and spring-connected blocks where older methods failed completely.
