2014體感互動: 2014體感互動

今天目標: 碰撞偵測

0. 先把上課要用的環境設定好
0.1. LeapMotion裝起來 (Software, Leap Developer Kit)
0.2. Processing 2.1.1 新版裝起來
0.3. 用新版 Processing 來 Import Library 安裝三個library (search: colli
0.3.0. Leap Motion for Processing
0.3.1. bRigid (它另外需要 PeasyCam)
0.3.2. ComputationalGeometry
0.3.3. SuperCollider

1. 試著開啟 Examples 裡的 Leap Motion for Processing 的 e1_basic, 將很多行的程式碼,簡化成3個重點
1.1. import 並宣告
import de.voidplus.leapmotion.*;
LeapMotion lea;
1.2. 在 setup()裡面 new 好它
leap = new LeapMotion(this);
1.3. 在 draw()裡面用它
for( Hand hand : leap.getHands() ){
hand.draw();
}

[程式碼]
import de.voidplus.leapmotion.*;

LeapMotion leap;

void setup(){
size(800, 500, P3D);
leap = new LeapMotion(this);
}

void draw(){
background(255);
for( Hand hand : leap.getHands() ){
hand.draw();
}

}
[程式碼]

2. 試著跑 bRigid 的範例 terrain

3. 試著將 Leap Motion 結合到 Terrain 範例中
3.1. 與 1.1相同, 先 import並宣告
3.2. 與 1.2相同, 在 setup()裡 new 它
3.3. 與 1.3相同, 在 draw()裡面用它

[程式碼]

// bRigid provides classes for an easier handling of jBullet in Processing. bRigid is thought as a kind of Processing port for the bullet physics simulation library written in C++.

//here: build a TriangleMesh and use it as "Terrain"

import javax.vecmath.Vector3f;

import processing.core.PApplet;

import peasy.*;

import bRigid.*;

import de.voidplus.leapmotion.*;

PeasyCam cam;

BPhysics physics;

BObject rigid;

BTerrain terrain;

LeapMotion leap;

public void setup() {

size(1280, 720, P3D);

frameRate(60);

cam = new PeasyCam(this, 200);

cam.pan(0, 50);

cam.rotateX(.4f);

physics = new BPhysics();

physics.world.setGravity(new Vector3f(0, 40, 0));

float height = 1.1f;

//BTerrain(PApplet p, int tesselation, float height, int seed, Vector3f position, Vector3f scale)

terrain = new BTerrain(this, 110, height, 10, new Vector3f(), new Vector3f(2, 2, 2));

physics.addBody(terrain);

//create the first rigidBody as Sphere

rigid = new BBox(this, 5, 1.0f, 10.0f, 1.0f);

leap = new LeapMotion(this);

}

public void draw() {

background(255);

lights();

rotateY(frameCount*.002f);

for( Hand hand : leap.getHands() ){

PVector p = hand.getPosition();

if (frameCount%2==0) {

Vector3f pos = new Vector3f(p.x/10-90, -30, random(-90, 90));

//reuse the rigidBody of the sphere for performance resons

BObject r = new BObject(this, 5, rigid, pos, true);

physics.addBody(r);

}

physics.update();

terrain.display();

for (int i =1;i<physics.rigidBodies.size();i++) {

BObject b = (BObject) physics.rigidBodies.get(i);

b.display(50, 50, 50);

}

[程式碼]

4. 把 Maya 建出來的車子在 Processing 中試著畫 3D模型!
4.1. Processing Import Library, OBJLoader
4.2. 跑 Example, 裡面 OBJLoader 有 OBJLoader_BoundingBox 範例可以跑
4.3. 把你的模型,放在文件\Processing\libraries\OBJLoader\examples\OBJLoader_BoundingBox\data 中, 然後範例程式裡面的 model = new OBJLoader(.... "檔名.obj" ...) 改成你的檔名即可

[程式碼]

import processing.opengl.*;

import saito.objloader.*;

OBJModel model;

// BoundingBox is a class within OBJModel. Check docs for all it can do.

BoundingBox bbox;

void setup()

{

size(600,400,OPENGL);

model = new OBJModel(this, "car.obj", "relative", QUADS);

model.enableDebug();

model.scale(10);

model.translateToCenter();

bbox = new BoundingBox(this, model);

}

void draw(){

background(128);

lights();

translate(width/2, height/2, 0);

//rotateX(radians(frameCount)/2);

rotateY(radians(frameCount)/2);

for(int i = -1; i < 2; i ++){

pushMatrix();

translate(0,0,i*bbox.getWHD().z);

model.draw();

popMatrix();

}

noFill();

stroke(255,0,255);

bbox.draw();

noStroke();

}

[程式碼]

5. (1)+(2)+(3)的進化合成版
[程式碼]

// bRigid provides classes for an easier handling of jBullet in Processing. bRigid is thought as a kind of Processing port for the bullet physics simulation library written in C++.

//here: build a TriangleMesh and use it as "Terrain"

import javax.vecmath.Vector3f;

import processing.core.PApplet;

import peasy.*;

import bRigid.*;

import de.voidplus.leapmotion.*;

import saito.objloader.*;

OBJModel model;

PeasyCam cam;

BPhysics physics;

BObject rigid;

BTerrain terrain;

LeapMotion leap;

public void setup() {

size(1280, 720, P3D);

frameRate(60);

cam = new PeasyCam(this, 200);

cam.pan(0, 50);

cam.rotateX(.4f);

physics = new BPhysics();

physics.world.setGravity(new Vector3f(0, 40, 0));

float height = 1.1f;

//BTerrain(PApplet p, int tesselation, float height, int seed, Vector3f position, Vector3f scale)

terrain = new BTerrain(this, 110, height, 10, new Vector3f(), new Vector3f(2, 2, 2));

physics.addBody(terrain);

//create the first rigidBody as Sphere

rigid = new BBox(this, 5, 1.0f, 10.0f, 1.0f);

leap = new LeapMotion(this);

model = new OBJModel(this, "car.obj", "relative", QUADS);

}

public void draw() {

background(255);

lights();

rotateY(frameCount*.002f);

for( Hand hand : leap.getHands() ){

PVector p = hand.getPosition();

if (frameCount%2==0) {

Vector3f pos = new Vector3f(p.x/10-90, -30, random(-90, 90));

//reuse the rigidBody of the sphere for performance resons

BObject r = new BObject(this, 5, rigid, pos, true);

physics.addBody(r);

}

physics.update();

terrain.display();

for (int i =1;i<physics.rigidBodies.size();i++) {

BObject b = (BObject) physics.rigidBodies.get(i);

//b.display(50, 50, 50);

Vector3f pos = b.getPosition();

pushMatrix();

translate(pos.x, pos.y, pos.z);

model.draw();

popMatrix();

}

[程式碼]

2014體感互動

2014年3月10日星期一

2014體感互動 - 第四週

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張貼留言

2014年3月10日 星期一

2014體感互動 - 第四週

沒有留言:

張貼留言

2014年3月10日星期一