thomasvanta

PVector drag = p.vel.get(); //get a copy of velocity
    drag.normalize(); //normalize it
    float c = -0.005; //coeficient
    float speed = p.vel.mag(); //modulo de la velocidad
    drag.mult(c*speed*speed);
    p.applyForce(drag);

thomasvanta

    drag.set(particles[i]->vel.getNormalized());//copy of the velocity vectors direction
  	float speed = particles[i]->vel.length();	//get the vectors length in order to:
		drag.scale(c*speed);						//multiply it by coeficient
		particles[i]->applyForce(drag);

thomasvanta

#include "testApp.h"

const string SHADER_VS = " \
	uniform mat4 projection_matrix; \
	uniform mat4 view_matrix; \
	attribute vec4 pos; \
	attribute vec2 tex; \
	varying vec2 vtex; \
	\
	void main() { \

thomasvanta

textureRes = (int)sqrt((float)numParticles);
numParticles = textureRes * textureRes;
    
float * pos = new float[numParticles*3];
for (int x = 0; x < textureRes; x++){
  for (int y = 0; y < textureRes; y++){
    int i = textureRes * y + x;
            
      pos[i*3 + 0] = ofMap(x + 1, 0, textureRes + 1, 0, 1); //x*offset;
      pos[i*3 + 1] = ofMap(y + 1, 0, textureRes + 1, 0, 1); //y*offset;

thomasvanta

// White NanoKontrol midi Map

const int NANO_KONTROL_SC1_SLIDER_1 = 2;
const int NANO_KONTROL_SC1_SLIDER_2 = 3;
const int NANO_KONTROL_SC1_SLIDER_3 = 4;
const int NANO_KONTROL_SC1_SLIDER_4 = 5;
const int NANO_KONTROL_SC1_SLIDER_5 = 6;
const int NANO_KONTROL_SC1_SLIDER_6 = 8;
const int NANO_KONTROL_SC1_SLIDER_7 = 9;
const int NANO_KONTROL_SC1_SLIDER_8 = 12;

thomasvanta

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>KeepAlive</key>
	<dict>
		<key>SuccessfulExit</exit>
		<true/>
	</dict>
	<key>Label</key>

thomasvanta

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
}

thomasvanta

Luma

float luma(vec3 color) {
  return dot(color, vec3(0.299, 0.587, 0.114));
}

float luma(vec4 color) {
  return dot(color.rgb, vec3(0.299, 0.587, 0.114));
}

thomasvanta

//created by jvcleave
//edited by Thomas Van Ta
//openFrameworks 0.8-0.9 main.cpp

#include "ofMain.h"
#include "ofApp.h"
#if (OF_VERSION_MINOR != 9) && defined(TARGET_OPENGLES)
#include "ofGLProgrammableRenderer.h"
#endif

thomasvanta

//from simon geilfus: https://github.com/simongeilfus/FlyingTokyo19
//Pass an argument by value when it is a built-in type or a small object (Passing by value makes a copy of the object) :
void firstFunction( int number, bool boolean );

//Pass an argument by reference when you want the argument to be read-write:
void secondFunction( Rectf &rectangle );

//Pass an argument by const reference when you want the argument to be read-only (Read-only also ensure that your data won't be unecessarely copied when calling the function):
void thirdFunction( const vector<gl::Texture> &textures );