Hi everybody,
I'm currently working on a design project which represent a virtual world. My processing is a land with a camera in movement, giving the impression of surfing. I would like to make it in virtual reality, how I can do virtual reality with a processing ? Is it easy ? How it works ?
Many thanks !!
Here screen shots :
. 
Here my code :
/**
Terrain
Demonstrating the Shapes3D library.
Click and drag mouse to change direction
W or P = faster
S or L = slower
Click on artefacts to change color/texture
created by Peter Lager
*/
import shapes3d.utils.*;
import shapes3d.animation.*;
import shapes3d.*;
Terrain terrain;
Box skybox;
Box[] droids;
Tube tube;
Ellipsoid obelisk;
PVector[] droidDirs;
int nbrDroids;
TerrainCam cam;
int camHoversAt = 8;
float terrainSize = 1000;
float horizon = 400;
long time;
float camSpeed;
int count;
boolean clicked;
// List of image files for texture
String[] textures = new String[] {
"grid01.png", "dada.png", "rouge.jpg",
"globe.jpg", "avast.png"
};
void setup() {
size(1300, 900, P3D);
cursor(CROSS);
terrain = new Terrain(this, 60, terrainSize, horizon);
terrain.usePerlinNoiseMap(0, 40, 0.15f, 0.15f);
terrain.setTexture("grid01.png", 4);
terrain.tag = "Ground";
terrain.tagNo = -1;
terrain.drawMode(S3D.TEXTURE);
/**
skybox = new Box(this, 0, 0, 500);
skybox.setSize(100, 100, 1);
skybox.setTexture("dada.png", Box.FRONT);
//skybox.setTexture("Black.png", Box.BACK);
//skybox.setTexture("Black.png", Box.LEFT);
//skybox.setTexture("Black.png", Box.RIGHT);
//skybox.setTexture("Black.png", Box.TOP);
//skybox.visible(true, Box.BOTTOM);
skybox.drawMode(S3D.TEXTURE);
skybox.tag = "Skybox";
skybox.tagNo = -1;
*/
nbrDroids = 4;
droids = new Box[nbrDroids];
droidDirs = new PVector[nbrDroids];
for (int i = 0; i < nbrDroids; i++) {
droids[i] = new Box(this, 10);
droids[i].setSize(10, 10, 1);
droids[i].moveTo(getRandomPosOnTerrain(terrain, terrainSize, 50));
droids[i].tagNo = i;
droids[i].tag = "cheval " + i;
//droids[i].fill(color(random(128, 255), random(128, 255), random(128, 255)));
//droids[i].drawMode(S3D.SOLID);
// Rajoute une texture cheval et annule la couleur
droids[i].setTexture(textures[1]);
droids[i].drawMode(S3D.TEXTURE);
droidDirs[i] = getRandomVelocity(random(15, 25));
terrain.addShape(droids[i]);
}
// 1 obélisque avec texture cheval
obelisk = new Ellipsoid(this, 4, 20);
obelisk.setRadius(5, 30, 5);
obelisk.moveTo(getRandomPosOnTerrain(terrain, terrainSize, 28));
obelisk.fill(color(0, 255, 0));
obelisk.tag = "dada";
obelisk.tagNo = 99999;
obelisk.setTexture(textures[4]);
obelisk.drawMode(S3D.TEXTURE);
terrain.addShape(obelisk);
// 1 tube aux fonds rouge et vert et au corps en texture cheval
tube = new Tube(this, 10, 30);
tube.setSize(3, 10, 6, 6, 20);
tube.moveTo(getRandomPosOnTerrain(terrain, terrainSize, 15.5));
tube.tagNo = 0;
tube.setTexture(textures[1]);
tube.drawMode(S3D.TEXTURE);
tube.fill(color(255, 0, 0), Tube.S_CAP);
tube.fill(color(0, 255, 0), Tube.E_CAP);
tube.drawMode(S3D.SOLID, Tube.BOTH_CAP);
camSpeed = 10;
cam = new TerrainCam(this);
cam.adjustToTerrain(terrain, Terrain.WRAP, camHoversAt);
cam.camera();
cam.speed(camSpeed);
cam.forward.set(cam.lookDir());
// Tell the terrain what camera to use
terrain.cam = cam;
time = millis();
}
void draw() {
background(35);
// Get elapsed time
long t = millis() - time;
time = millis();
// Update shapes on terrain
update(t/1000.0);
// Update camera speed and direction
if (mousePressed)
processMousePressed();
if (keyPressed)
processKeyPressed(t);
// Clicked on artefact?
if (clicked)
processMouseClick();
// Calculate amount of movement based on velocity and time
cam.move(t/1000.0);
// Adjust the cameras position so we are over the terrain
// at the given height.
cam.adjustToTerrain(terrain, Terrain.WRAP, camHoversAt);
// Set the camera view before drawing
cam.camera();
//obelisk.draw();
//tube.draw();
terrain.draw();
// Get rid of directional lights so skybox is evenly lit.
//skybox.moveTo(cam.eye().x, 0, cam.eye().z);
//skybox.draw();
}
void processMousePressed() {
float achange = (mouseX - pmouseX) * PI / width;
// Keep view and move directions the same
cam.rotateViewBy(achange);
cam.turnBy(achange);
}
void processKeyPressed(long t) {
if (key == 'W' || key =='w' || key == 'P' || key == 'p') {
camSpeed += (t/100.0);
cam.speed(camSpeed);
} else if (key == 'S' || key =='s' || key == 'L' || key == 'l') {
camSpeed -= (t/100.0);
cam.speed(camSpeed);
} else if (key == ' ') {
camSpeed = 0;
cam.speed(camSpeed);
}
}
void processMouseClick() {
clicked = false; // reset
Shape3D selected = Shape3D.pickShape(this, mouseX, mouseY);
println("hello" + selected);
if (selected != null) {
camSpeed = 0;
cam.speed(camSpeed);
if (selected.tagNo > textures.length)
selected .fill(color(random(128, 255), random(128, 255), random(128, 255)));
else if (selected.tagNo >= 0) {
selected.tagNo = (selected.tagNo + 1) % textures.length;
selected.setTexture(textures[selected.tagNo]);
}
}
}
/**
* Update artefacts and seekers
*/
public void update(float time) {
PVector np;
obelisk.rotateBy(0, time*radians(16.9f), 0);
tube.rotateBy(time*radians(25.6f), time*radians(6.871f), time*radians(17.3179f));
for (int i = 0; i < nbrDroids; i++) {
np = PVector.add(droids[i].getPosVec(), PVector.mult(droidDirs[i], time));
droids[i].moveTo(np);
droids[i].adjustToTerrain(terrain, Terrain.WRAP, 15);
}
}
/**
* Get a random position on the terrain avoiding the edges
* @param t the terrain
* @param tsize the size of the terrain
* @param height height above terrain
* @return
*/
public PVector getRandomPosOnTerrain(Terrain t, float tsize, float height) {
PVector p = new PVector(random(-tsize/2.1f, tsize/2.1f), 0, random(-tsize/2.1f, tsize/2.1f));
p.y = t.getHeight(p.x, p.z) - height;
return p;
}
/**
* Get random direction for seekers.
* @param speed
*/
public PVector getRandomVelocity(float speed) {
PVector v = new PVector(random(-10000, 10000), 0, random(-10000, 10000));
v.normalize();
v.mult(speed);
return v;
}
/**
* next texture or change color
*/
public void mouseClicked() {
clicked = true;
}