week03_01_P3D_translate_rotateY_radians_box
void setup(){
size(400,400,P3D); //開啟3D模式
}
void draw(){
background(128); //灰色背景
translate(mouseX,mouseY);
rotateY(radians(frameCount)); //對Y旋轉
box(200); //大小200的3D Box盒子
}
week03_02_2D_point_line_rect_ellipse
size(400,400);//2D座標系統
stroke(255,0,0);//筆觸是紅色
strokeWeight(8);//筆觸權重大小
point(200,200);//預設的點，只有1 pixel
line(200,0,400,100);//畫線
rect(50,50,100,100);//四邊形x,y,w,h
fill(255,255,0);//填黃色
ellipse(300,200,50,80);//橢圓x,y,w,h
week03_03_rect_corners
size(400,400);
rect(50,50,100,100);
rect(50,200,100,100,20);
rect(200,50,100,100,10,20,30,40);
week03_04__mousePressed_stroke_line
void setup(){Add commentMore actions
size(500,500);
}
void draw(){
//background(255);
fill(255,0,0); //紅
rect(0,0,50,50);
fill(255,255,0); //黃
rect(0,50,50,50);
fill(0,255,0); //綠
rect(0,100,50,50);
fill(0,0,255); //藍
rect(0,150,50,50);
if(mousePressed)line(mouseX,mouseY,pmouseX,pmouseY);
}
void mousePressed(){
if (mouseX<50){
if (mouseY<50) stroke(255,0,0);
else if (mouseY<100) stroke(255,255,0);
else if (mouseY<150) stroke(0,255,0);
else if (mouseY<200) stroke(0,0,255);
}
}
week03_04b__mousePressed_stroke_line
void setup(){Add commentMore actions
size(500,500);
}
void draw(){
//background(255);
stroke(0);
fill(255,0,0); //紅
rect(0,0,50,50);
fill(255,255,0); //黃
rect(0,50,50,50);
fill(0,255,0); //綠
rect(0,100,50,50);
fill(0,0,255); //藍
rect(0,150,50,50);
stroke(myStroke);
if(mousePressed)line(mouseX,mouseY,pmouseX,pmouseY);
}
color myStroke;
void mousePressed(){
if (mouseX<50){
if (mouseY<50) myStroke=color(255,0,0);
else if (mouseY<100) myStroke=color(255,255,0);
else if (mouseY<150) myStroke=color(0,255,0);
else if (mouseY<200) myStroke=color(0,0,255);
}
}
week03_05__mouse_cat_x_y
void setup(){Add commentMore actions
size(400,400);
}
float x,y; //貓的座標
void draw(){
background(255);
ellipse(x,y,40,40);
ellipse(mouseX,mouseY,40,20);
x = (x*14 + mouseX) / 15;
y = (y*14 + mouseY) / 15;
}//新的座標，舊的座標*14，目標*1
week03_06_lerp_frameCount
void setup(){Add commentMore actions
size(400,400);
}
float startX = 10, startY = 10;
float stopX = 390, stopY = 390;
void draw(){
ellipse(startX,startY,10,10);
ellipse(stopX,stopY,10,10);
// lerp()可以做內插，要給他 0.0 ~ 1.0之間的數
float midX=lerp(startX,stopX,frameCount / 200.0);
float midY=lerp(startY,stopY,frameCount / 200.0);
// frameCount 是「第幾個frame」1小時=60分，1分=60秒，1秒=60 frame
ellipse(midX,midY,10,10);
}
week03_07_bezier_curve
size(400,400);
int x1=340 , x2=40 , x3=360 , x4=60;
int y1=80 , y2=40 , y3=360 , y4=320;
line(x1,y1,x2,y2);
line(x3,y3,x4,y4);
bezier(x1,y1,x2,y2,x3,y3,x4,y4);//貝氏曲線
week03_08_bezier__equation
void setup(){Add commentMore actions
size(400,400);
}
int x1=340 , x2=40 , x3=360 , x4=60;
int y1=80 , y2=40 , y3=360 , y4=320;
void draw(){
background(255);
line(x1,y1,x2,y2);
line(x3,y3,x4,y4);
bezier(x1,y1,x2,y2,x3,y3,x4,y4);//貝氏曲線
float t = frameCount /200.0 %1;
float t2 = 1-t;
float x =x1*t2*t2*t2 + 3*x2*t*t2*t2 + 3*x3*t*t*t2 + x4*t*t*t;
float y =y1*t2*t2*t2 + 3*y2*t*t2*t2 + 3*y3*t*t*t2 + y4*t*t*t;
ellipse(x,y,10,10);
}
week03_08b_bezier_equation
void setup(){Add commentMore actions
size(400,400);
}
int x1=120 , x2=320 , x3=320 , x4=120; //只改控制點
int y1=80 , y2=20 , y3=300 , y4=300;
void draw(){
background(255);
line(x1,y1,x2,y2);
line(x3,y3,x4,y4);
bezier(x1,y1,x2,y2,x3,y3,x4,y4);//貝氏曲線
float t = frameCount /200.0 %1;
float t2 = 1-t;
float x =x1*t2*t2*t2 + 3*x2*t*t2*t2 + 3*x3*t*t*t2 + x4*t*t*t;
float y =y1*t2*t2*t2 + 3*y2*t*t2*t2 + 3*y3*t*t*t2 + y4*t*t*t;
ellipse(x,y,10,10);
}
week03_09_3D_random_random_point
float [] x=new float[1000];Add commentMore actions
float [] y=new float[1000];
void setup(){
size(400,400,P3D);
for(int i=0;i<1000;i++){
x[i] = random(400);
y[i] = random(400);
}
}
void draw(){
background(0); //黑色背景
stroke(255);// 白色的線條Add commentMore actions
for(int i=0;i<1000;i++){
point(x[i],y[i]);
}
}
week03_10_3D_random_random_random_point_translate
float [] x=new float[5000];Add commentMore actions
float [] y=new float[5000];
float [] z=new float[5000];
void setup(){
size(400,400,P3D);
for(int i=0;i<5000;i++){
x[i] = random(400);
y[i] = random(400);
z[i] = random(-400,400);
}
}
void draw(){
background(0); //黑色背景
stroke(255);// 白色的線條
translate(0,0,mouseY);
for(int i=0;i<5000;i++){
point(x[i],y[i],z[i]); //現在是3D的點
}
}
week03_11_3D_sphere_translate_rotateY
void setup(){Add commentMore actions
size(400,400,P3D);
}
void draw(){
background(128);
translate(mouseX,mouseY);
rotateY(radians(frameCount));
sphere(200);
}
week03_12_3D_sphere_translate_rotateY_lights
void setup(){Add commentMore actions
size(400,400,P3D);
}
void draw(){
background(128);
lights();//加上打光
translate(mouseX,mouseY);
rotateY(radians(frameCount));
sphere(200);
}
week03_13_3D_pushMatrix_translate_sphere_popMatrix
void setup(){Add commentMore actions
size(600,400,P3D);
}
void draw(){
background(128);
lights();
pushMatrix();//備份矩陣
translate(300,100); //習慣上，要往右再縮
sphere(100);
popMatrix();//還原矩陣
//要備份矩陣、還原矩陣，就不會出錯
pushMatrix();
translate(100,100);
sphere(100);
popMatrix();
}
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