Blint Mikls, Ursina Caluori 27.6.2005, ETH Zrich Physics Mass - - PowerPoint PPT Presentation

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Oct 11, 2022 963 likes •1.1k views

Blint Mikls, Ursina Caluori 27.6.2005, ETH Zrich Physics Mass Point System Leap frog integration Damping of springs and mass points Read model from file Balls The simplest possible rigid body No rotation

SLIDE 1

Bálint Miklós, Ursina Caluori 27.6.2005, ETH Zürich

SLIDE 2

Physics

Mass Point System

– Leap frog integration – Damping of springs and mass points – Read model from file

Balls

– The simplest possible rigid body – No rotation – Leap frog integration

SLIDE 3

Collisions

With penetration
Force driven

– Proportinal with penetration depth – For every pair of object classes tune the force magnitude – For cloud smaller forces: “soft“ collisions

Works fine for simple shapes

SLIDE 4

Rendering

Cloud (Ken Perlin‘s method)

– Generate random particles in 3D – Apply blur and noise for density generation – Density corresponds to opacity – Project on plane to generate texture

Textures
Light sources

– Balls carry point light sources

SLIDE 5

Implementation

Coin3d and C++
Dynamic scenegraph
Simulation with higher frequency than