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fennec/planning/3D_PHYSICS.md
Medusa Slockbower 992a02db3e - Changed directory structure significantly, moving gfx api implementations to fennec/renderers
- Began new overarching window interface
 - Began outlining renderer interfaces
 - Began a binary tree implementation in bintree.h, this will act as a generalized binary tree, then red-black tree will be implemented on top of it for sequences (ordered sets)
2025-08-28 00:01:54 -04:00

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# 3D Physics (`physics3d`)
## Table of Contents
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* [Home](./CONTENTS.md#planning-documentation-for-fennec)
* [3D Physics (`physics3d`)](#3d-physics-physics3d)
* [Table of Contents](#table-of-contents)
* [Introduction](#introduction)
* [System Layout](#system-layout)
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## Introduction
&ensp; This system will handle newtonian physics for 3D rigid and soft-bodies. This should include
articulated skeletal systems, particle physics, and soft-body physics. The following soft-body systems
will be supported with the associated implementation; elastics with finite element simulation, cloth
physics with position-based dynamics, oceans with iWave, 3D fluid dynamics with smoothed-particle
hydrodynamics, 2D surface fluid dynamics with force-based dynamics.
## System Layout
* Rigid Body Physics
* Newtonian Physics and Collision Resolution
* Articulated Skeletal Systems
* Inverse Kinematics
* Stiff Rods
- Particle Physics
* Soft Body Physics
* Elastics &rarr; Finite Element Simulation
* Cloth &rarr; Position-Based Dynamics
* Water
* Oceans &rarr; iWave
* Reasoning: iWave provides interactive lightweight fluid dynamics suitable for flat planes of water.
<br><br>
* 3D Fluid Dynamics &rarr; Smoothed-Particle Hydrodynamics
* Reasoning: This is the simplest method for simulating 3D bodies of water. This should exclusively be
used for small scale simulations where self-interactive fluids are necessary. I.E. pouring water into
a glass.
<br><br>
* 2D Surface Fluid Dynamics &rarr; Force-Based Dynamics
* Reasoning: This model, like iWave, provides lightweight interactive fluid dynamics, but is more easily
adapted to flowing surfaces such as streams and rivers.