Physics : Cloth with particles

This demo shows how you can use the Verlet Integration to build a cloth with particles. For understand the theory behind the code, visit the site

Müller-Fischer et al.

Real-time physics

http://www.matthiasmueller.info/realtimephysics/index.html

And thanks to the material from the site

http://www.dis.uniroma1.it/~frat/cg.fall13/cg.html

The demo project has the following structure:

The main class : phys_sim.cpp. In this class you will find 2 methods, the first one

void BuildCloth(int nbParticlesX, int nbParticlesY);

makes a cloth, while the second one

void BuildRope(int nbParticles);

makes a rope. Use the method:

void initGL(int width, int height) 

{

glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse_0);

glLightfv (GL_LIGHT0, GL_POSITION, light_positio_0);

glEnable(GL_LIGHTING);

glEnable(GL_LIGHT0);

glEnable(GL_COLOR_MATERIAL);

glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);

reshape(width, height);

glClearColor(0.126f, 0.126f, 0.128f, 1.0f);

glClearDepth(1.0f);

glEnable(GL_DEPTH_TEST);

glDepthFunc(GL_LEQUAL);

glShadeModel(GL_FLAT);

glEnable(GL_NORMALIZE);

//BuildRope(20);

BuildCloth(4,4);

}

for drawing a cloth or  a rope. The physics engine is realized through the following C++ sources:

constraint.h

particle.h

particle_system.h

Download sources from here

Here it is a video demo: