電腦圖學week13

//week13-1-processing-video
//Sketch-Library-Manage Libraries...安裝video
import processing.video.*;//Java使用外掛的匯入
Capture video;//有視訊鏡頭的 用這個版本
Movie movie;//沒鏡頭 改用這個
void setup(){
  size(640,960);//常見的視訊
  video = new Capture(this,640,480);
  video.start();//打開視訊
  movie = new Movie(this,"street.mov");//讀檔案
  movie.loop();
}
void draw(){
  if(video.available()) video.read();
  image(video,0,480);//若沒有視訊 就註解掉 就不會出錯
  if(movie.available()) movie.read();
  image(movie,0,0);
} 

//week13-2-camera-movie-eye-center-up
//電腦圖學繪圖時 會設定camera的相關係數
import processing.video.*;//要使用影片外掛
Movie movie;//要放影片變數
void setup(){
  size(600,400,P3D); //要記的加上P3D才能有OpenGL 3D功能
  movie = new Movie(this,"street.mov");//請再把steet.mov拉進來
  movie.loop();//迴圈播放
}
void draw(){
  background(128);
  camera(mouseX,mouseY,120,300,200,0,0,1,0); 
  //很多參數 eyeX,eyeY,eyeZ,centerX,centerY,centerZ,upX,upY,upZ
  if(movie.available()) movie.read();//有新畫面 就讀入
  image(movie,0,0);//放影片 放在0 0
} 

//week13-3-texture-textureMode-beginShape-vertex-endShape
//先教貼圖再加進去
PImage img;
void setup(){
  size(400,400,P3D); 
  img = loadImage("chessboard.png");//把圖檔拉進來
  textureMode(NORMAL);//很多種貼圖模式
  //先用最簡單的NORMAL來畫 2個三角形 不像是3D透視的效果
}
void draw(){
  background(128);//灰背景
  beginShape();//開始畫
  texture(img);//把圖片當貼圖
  vertex(40,80,0,0);//4個頂點 的四邊形 會截出兩個三角形
  vertex(320,20,1,0);
  vertex(380,360,1,1);
  vertex(160,380,0,1);
  endShape();
} 

//week13-4-camera-chessboard-texture-front-left
//把貼圖 跟camera整合再一起
PImage img;
void setup(){
  size(400,400,P3D); 
  img = loadImage("chessboard.png");
  textureMode(NORMAL); 
}
void draw(){//攝影機往前方看 左右前後移動
  camera(mouseX,200,mouseY,mouseX,200,mouseY-10,0,1,0);
  background(128);
  beginShape();//front 正前方
  texture(img);
    vertex(0,0,0,0,0);
    vertex(400,0,0,1,0);
    vertex(400,400,1,1);
    vertex(0,400,0,0,1);
  endShape();
  beginShape();//left左方
    texture(img);
    vertex(0,0,0,0,0);//x y z u v
    vertex(0,400,0,1,0);
    vertex(0,400,400,1,1);
    vertex(0,0,400,0,1);
  endShape();
} 

//week13-5-camera-keyPressed-keyCode-x-y-z-angle-cos-sin
//修改自week13-4
PImage img;
void setup(){
  size(400,400,P3D); 
  img = loadImage("chessboard.png");//要拉入圖檔
  textureMode(NORMAL); 
}
float x=200,y=200,z=200,angle=180;
void keyPressed(){
  if(keyCode==LEFT) angle--;
  if(keyCode==RIGHT) angle++;
  if(keyCode==UP){
     x+=cos(radians(angle));
     z+=sin(radians(angle));//是Z不是Y
  }
  if(keyCode==DOWN){
     x-=cos(radians(angle));
     z-=sin(radians(angle));
  }
}
void draw(){//攝影機往前方看 左右前後移動
  if(keyPressed) keyPressed();//補強 按鍵按下去不斷更新
  //camera(mouseX,200,mouseY,mouseX,200,mouseY-10,0,1,0);
  camera(x,y,z,x+cos(radians(angle)),y,z+sin(radians(angle)),0,1,0);
  background(128);
  beginShape();//front 正前方
  texture(img);
    vertex(0,0,0,0,0);
    vertex(400,0,0,1,0);
    vertex(400,400,1,1);
    vertex(0,400,0,0,1);
  endShape();
  beginShape();//left左方
    texture(img);
    vertex(0,0,0,0,0);//x y z u v
    vertex(0,400,0,1,0);
    vertex(0,400,400,1,1);
    vertex(0,0,400,0,1);
  endShape();
}

//week13-6
//把今天教的加進來
//圖檔影片檔拉進來
import processing.video.*;//要使用影片外掛
Movie movie;//要放影片變數
PImage img;
void setup() {
  size(400, 400, P3D); 
  img = loadImage("chessboard.png");
  movie = new Movie(this, "street.mov");
  movie.loop();
  textureMode(NORMAL);
  video = new Capture(this,640,480);
  video.start();
}
Capture video;
void draw() {
  camera(200,200,200,200+cos(radians(frameCount)),200,200+sin(radians(frameCount)),0,1,0);
  background(128);
  if (movie.available()) movie.read();//有新畫面 就讀入
  beginShape();//front 正前方
  texture(img);
    vertex(0,0,0,0,0);
    vertex(400,0,0,1,0);
    vertex(400,400,1,1);
    vertex(0,400,0,0,1);
  endShape();
  translate(0,0,1);
  image(movie,0,0,360,240);
  if (video.available()) video.read();//有新畫面 就讀入
  beginShape();//left左方
    texture(video);
    vertex(0,0,0,0,0);//x y z u v
    vertex(0,400,0,1,0);
    vertex(0,400,400,1,1);
    vertex(0,0,400,0,1);
  endShape();
  beginShape();
    texture(video);
}