mirror of
https://github.com/processing/processing4.git
synced 2026-06-16 04:26:26 +02:00
Removing 3D example, integrated into Basics and Topics
This commit is contained in:
Casey Reas
@@ -0,0 +1,59 @@
|
||||
/**
|
||||
* Brick Tower
|
||||
* by Ira Greenberg.
|
||||
*
|
||||
* 3D castle tower constructed out of individual bricks.
|
||||
* Uses the PVector and Cube classes.
|
||||
*/
|
||||
|
||||
float bricksPerLayer = 16.0;
|
||||
float brickLayers = 18.0;
|
||||
Cube brick;
|
||||
float brickWidth = 60, brickHeight = 25, brickDepth = 25;
|
||||
float radius = 175.0;
|
||||
float angle = 0;
|
||||
|
||||
void setup(){
|
||||
size(640, 360, P3D);
|
||||
brick = new Cube(brickWidth, brickHeight, brickDepth);
|
||||
}
|
||||
|
||||
void draw(){
|
||||
background(0);
|
||||
float tempX = 0, tempY = 0, tempZ = 0;
|
||||
fill(182, 62, 29);
|
||||
noStroke();
|
||||
// Add basic light setup
|
||||
lights();
|
||||
translate(width/2, height*1.2, -380);
|
||||
// Tip tower to see inside
|
||||
rotateX(radians(-45));
|
||||
// Slowly rotate tower
|
||||
rotateY(frameCount * PI/600);
|
||||
for (int i = 0; i < brickLayers; i++){
|
||||
// Increment rows
|
||||
tempY-=brickHeight;
|
||||
// Alternate brick seams
|
||||
angle = 360.0 / bricksPerLayer * i/2;
|
||||
for (int j = 0; j < bricksPerLayer; j++){
|
||||
tempZ = cos(radians(angle))*radius;
|
||||
tempX = sin(radians(angle))*radius;
|
||||
pushMatrix();
|
||||
translate(tempX, tempY, tempZ);
|
||||
rotateY(radians(angle));
|
||||
// Add crenelation
|
||||
if (i==brickLayers-1){
|
||||
if (j%2 == 0){
|
||||
brick.create();
|
||||
}
|
||||
}
|
||||
// Create main tower
|
||||
else {
|
||||
brick.create();
|
||||
}
|
||||
popMatrix();
|
||||
angle += 360.0/bricksPerLayer;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,60 @@
|
||||
class Cube {
|
||||
|
||||
PVector[] vertices = new PVector[24];
|
||||
float w, h, d;
|
||||
|
||||
Cube(){ }
|
||||
|
||||
Cube(float w, float h, float d){
|
||||
this.w = w;
|
||||
this.h = h;
|
||||
this.d = d;
|
||||
|
||||
// Cube composed of 6 quads
|
||||
// Front
|
||||
vertices[0] = new PVector(-w/2, -h/2, d/2);
|
||||
vertices[1] = new PVector(w/2, -h/2, d/2);
|
||||
vertices[2] = new PVector(w/2, h/2, d/2);
|
||||
vertices[3] = new PVector(-w/2, h/2, d/2);
|
||||
|
||||
// Left
|
||||
vertices[4] = new PVector(-w/2, -h/2, d/2);
|
||||
vertices[5] = new PVector(-w/2, -h/2, -d/2);
|
||||
vertices[6] = new PVector(-w/2, h/2, -d/2);
|
||||
vertices[7] = new PVector(-w/2, h/2, d/2);
|
||||
|
||||
// Right
|
||||
vertices[8] = new PVector(w/2, -h/2, d/2);
|
||||
vertices[9] = new PVector(w/2, -h/2, -d/2);
|
||||
vertices[10] = new PVector(w/2, h/2, -d/2);
|
||||
vertices[11] = new PVector(w/2, h/2, d/2);
|
||||
|
||||
// Back
|
||||
vertices[12] = new PVector(-w/2, -h/2, -d/2);
|
||||
vertices[13] = new PVector(w/2, -h/2, -d/2);
|
||||
vertices[14] = new PVector(w/2, h/2, -d/2);
|
||||
vertices[15] = new PVector(-w/2, h/2, -d/2);
|
||||
|
||||
// Top
|
||||
vertices[16] = new PVector(-w/2, -h/2, d/2);
|
||||
vertices[17] = new PVector(-w/2, -h/2, -d/2);
|
||||
vertices[18] = new PVector(w/2, -h/2, -d/2);
|
||||
vertices[19] = new PVector(w/2, -h/2, d/2);
|
||||
|
||||
// Bottom
|
||||
vertices[20] = new PVector(-w/2, h/2, d/2);
|
||||
vertices[21] = new PVector(-w/2, h/2, -d/2);
|
||||
vertices[22] = new PVector(w/2, h/2, -d/2);
|
||||
vertices[23] = new PVector(w/2, h/2, d/2);
|
||||
}
|
||||
|
||||
void create(){
|
||||
for (int i=0; i<6; i++){
|
||||
beginShape(QUADS);
|
||||
for (int j = 0; j < 4; j++){
|
||||
vertex(vertices[j+4*i].x, vertices[j+4*i].y, vertices[j+4*i].z);
|
||||
}
|
||||
endShape();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,10 @@
|
||||
class Dimension3D{
|
||||
float w, h, d;
|
||||
|
||||
Dimension3D(float w, float h, float d){
|
||||
this.w=w;
|
||||
this.h=h;
|
||||
this.d=d;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,52 @@
|
||||
/**
|
||||
* I Like Icosahedra
|
||||
* by Ira Greenberg.
|
||||
*
|
||||
* This example plots icosahedra. The Icosahdron is a regular
|
||||
* polyhedron composed of twenty equalateral triangles.
|
||||
*/
|
||||
|
||||
Icosahedron ico1;
|
||||
Icosahedron ico2;
|
||||
Icosahedron ico3;
|
||||
|
||||
void setup(){
|
||||
size(640, 360, P3D);
|
||||
ico1 = new Icosahedron(75);
|
||||
ico2 = new Icosahedron(75);
|
||||
ico3 = new Icosahedron(75);
|
||||
}
|
||||
|
||||
void draw(){
|
||||
background(0);
|
||||
lights();
|
||||
translate(width/2, height/2);
|
||||
|
||||
pushMatrix();
|
||||
translate(-width/3.5, 0);
|
||||
rotateX(frameCount*PI/185);
|
||||
rotateY(frameCount*PI/-200);
|
||||
stroke(170, 0, 0);
|
||||
noFill();
|
||||
ico1.create();
|
||||
popMatrix();
|
||||
|
||||
pushMatrix();
|
||||
rotateX(frameCount*PI/200);
|
||||
rotateY(frameCount*PI/300);
|
||||
stroke(150, 0, 180);
|
||||
fill(170, 170, 0);
|
||||
ico2.create();
|
||||
popMatrix();
|
||||
|
||||
pushMatrix();
|
||||
translate(width/3.5, 0);
|
||||
rotateX(frameCount*PI/-200);
|
||||
rotateY(frameCount*PI/200);
|
||||
noStroke();
|
||||
fill(0, 0, 185);
|
||||
ico3.create();
|
||||
popMatrix();
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,159 @@
|
||||
class Icosahedron extends Shape3D{
|
||||
|
||||
// icosahedron
|
||||
PVector topPoint;
|
||||
PVector[] topPent = new PVector[5];
|
||||
PVector bottomPoint;
|
||||
PVector[] bottomPent = new PVector[5];
|
||||
float angle = 0, radius = 150;
|
||||
float triDist;
|
||||
float triHt;
|
||||
float a, b, c;
|
||||
|
||||
// constructor
|
||||
Icosahedron(float radius){
|
||||
this.radius = radius;
|
||||
init();
|
||||
}
|
||||
|
||||
Icosahedron(PVector v, float radius){
|
||||
super(v);
|
||||
this.radius = radius;
|
||||
init();
|
||||
}
|
||||
|
||||
// calculate geometry
|
||||
void init(){
|
||||
c = dist(cos(0)*radius, sin(0)*radius, cos(radians(72))*radius, sin(radians(72))*radius);
|
||||
b = radius;
|
||||
a = (float)(Math.sqrt(((c*c)-(b*b))));
|
||||
|
||||
triHt = (float)(Math.sqrt((c*c)-((c/2)*(c/2))));
|
||||
|
||||
for (int i=0; i<topPent.length; i++){
|
||||
topPent[i] = new PVector(cos(angle)*radius, sin(angle)*radius, triHt/2.0f);
|
||||
angle+=radians(72);
|
||||
}
|
||||
topPoint = new PVector(0, 0, triHt/2.0f+a);
|
||||
angle = 72.0f/2.0f;
|
||||
for (int i=0; i<topPent.length; i++){
|
||||
bottomPent[i] = new PVector(cos(angle)*radius, sin(angle)*radius, -triHt/2.0f);
|
||||
angle+=radians(72);
|
||||
}
|
||||
bottomPoint = new PVector(0, 0, -(triHt/2.0f+a));
|
||||
}
|
||||
|
||||
// draws icosahedron
|
||||
void create(){
|
||||
for (int i=0; i<topPent.length; i++){
|
||||
// icosahedron top
|
||||
beginShape();
|
||||
if (i<topPent.length-1){
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+topPoint.x, y+topPoint.y, z+topPoint.z);
|
||||
vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
|
||||
}
|
||||
else {
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+topPoint.x, y+topPoint.y, z+topPoint.z);
|
||||
vertex(x+topPent[0].x, y+topPent[0].y, z+topPent[0].z);
|
||||
}
|
||||
endShape(CLOSE);
|
||||
|
||||
// icosahedron bottom
|
||||
beginShape();
|
||||
if (i<bottomPent.length-1){
|
||||
vertex(x+bottomPent[i].x, y+bottomPent[i].y, z+bottomPent[i].z);
|
||||
vertex(x+bottomPoint.x, y+bottomPoint.y, z+bottomPoint.z);
|
||||
vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
|
||||
}
|
||||
else {
|
||||
vertex(x+bottomPent[i].x, y+bottomPent[i].y, z+bottomPent[i].z);
|
||||
vertex(x+bottomPoint.x, y+bottomPoint.y, z+bottomPoint.z);
|
||||
vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
|
||||
}
|
||||
endShape(CLOSE);
|
||||
}
|
||||
|
||||
// icosahedron body
|
||||
for (int i=0; i<topPent.length; i++){
|
||||
if (i<topPent.length-2){
|
||||
beginShape();
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
|
||||
vertex(x+bottomPent[i+2].x, y+bottomPent[i+2].y, z+bottomPent[i+2].z);
|
||||
endShape(CLOSE);
|
||||
|
||||
beginShape();
|
||||
vertex(x+bottomPent[i+2].x, y+bottomPent[i+2].y, z+bottomPent[i+2].z);
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
|
||||
endShape(CLOSE);
|
||||
}
|
||||
else if (i==topPent.length-2){
|
||||
beginShape();
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
|
||||
vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
|
||||
endShape(CLOSE);
|
||||
|
||||
beginShape();
|
||||
vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
|
||||
endShape(CLOSE);
|
||||
}
|
||||
else if (i==topPent.length-1){
|
||||
beginShape();
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
|
||||
vertex(x+bottomPent[1].x, y+bottomPent[1].y, z+bottomPent[1].z);
|
||||
endShape(CLOSE);
|
||||
|
||||
beginShape();
|
||||
vertex(x+bottomPent[1].x, y+bottomPent[1].y, z+bottomPent[1].z);
|
||||
vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
|
||||
vertex(x+topPent[0].x, y+topPent[0].y, z+topPent[0].z);
|
||||
endShape(CLOSE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// overrided methods fom Shape3D
|
||||
void rotZ(float theta){
|
||||
float tx=0, ty=0, tz=0;
|
||||
// top point
|
||||
tx = cos(theta)*topPoint.x+sin(theta)*topPoint.y;
|
||||
ty = sin(theta)*topPoint.x-cos(theta)*topPoint.y;
|
||||
topPoint.x = tx;
|
||||
topPoint.y = ty;
|
||||
|
||||
// bottom point
|
||||
tx = cos(theta)*bottomPoint.x+sin(theta)*bottomPoint.y;
|
||||
ty = sin(theta)*bottomPoint.x-cos(theta)*bottomPoint.y;
|
||||
bottomPoint.x = tx;
|
||||
bottomPoint.y = ty;
|
||||
|
||||
// top and bottom pentagons
|
||||
for (int i=0; i<topPent.length; i++){
|
||||
tx = cos(theta)*topPent[i].x+sin(theta)*topPent[i].y;
|
||||
ty = sin(theta)*topPent[i].x-cos(theta)*topPent[i].y;
|
||||
topPent[i].x = tx;
|
||||
topPent[i].y = ty;
|
||||
|
||||
tx = cos(theta)*bottomPent[i].x+sin(theta)*bottomPent[i].y;
|
||||
ty = sin(theta)*bottomPent[i].x-cos(theta)*bottomPent[i].y;
|
||||
bottomPent[i].x = tx;
|
||||
bottomPent[i].y = ty;
|
||||
}
|
||||
}
|
||||
|
||||
void rotX(float theta){
|
||||
}
|
||||
|
||||
void rotY(float theta){
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
@@ -0,0 +1,82 @@
|
||||
abstract class Shape3D{
|
||||
float x, y, z;
|
||||
float w, h, d;
|
||||
|
||||
Shape3D(){
|
||||
}
|
||||
|
||||
Shape3D(float x, float y, float z){
|
||||
this.x = x;
|
||||
this.y = y;
|
||||
this.z = z;
|
||||
}
|
||||
|
||||
Shape3D(PVector p){
|
||||
x = p.x;
|
||||
y = p.y;
|
||||
z = p.z;
|
||||
}
|
||||
|
||||
|
||||
Shape3D(Dimension3D dim){
|
||||
w = dim.w;
|
||||
h = dim.h;
|
||||
d = dim.d;
|
||||
}
|
||||
|
||||
Shape3D(float x, float y, float z, float w, float h, float d){
|
||||
this.x = x;
|
||||
this.y = y;
|
||||
this.z = z;
|
||||
this.w = w;
|
||||
this.h = h;
|
||||
this.d = d;
|
||||
}
|
||||
|
||||
Shape3D(float x, float y, float z, Dimension3D dim){
|
||||
this.x = x;
|
||||
this.y = y;
|
||||
this.z = z;
|
||||
w = dim.w;
|
||||
h = dim.h;
|
||||
d = dim.d;
|
||||
}
|
||||
|
||||
Shape3D(PVector p, Dimension3D dim){
|
||||
x = p.x;
|
||||
y = p.y;
|
||||
z = p.z;
|
||||
w = dim.w;
|
||||
h = dim.h;
|
||||
d = dim.d;
|
||||
}
|
||||
|
||||
void setLoc(PVector p){
|
||||
x=p.x;
|
||||
y=p.y;
|
||||
z=p.z;
|
||||
}
|
||||
|
||||
void setLoc(float x, float y, float z){
|
||||
this.x=x;
|
||||
this.y=y;
|
||||
this.z=z;
|
||||
}
|
||||
|
||||
|
||||
// override if you need these
|
||||
void rotX(float theta){
|
||||
}
|
||||
|
||||
void rotY(float theta){
|
||||
}
|
||||
|
||||
void rotZ(float theta){
|
||||
}
|
||||
|
||||
|
||||
// must be implemented in subclasses
|
||||
abstract void init();
|
||||
abstract void create();
|
||||
}
|
||||
|
||||
@@ -0,0 +1,30 @@
|
||||
/**
|
||||
* Primitives 3D.
|
||||
*
|
||||
* Placing mathematically 3D objects in synthetic space.
|
||||
* The lights() method reveals their imagined dimension.
|
||||
* The box() and sphere() functions each have one parameter
|
||||
* which is used to specify their size. These shapes are
|
||||
* positioned using the translate() function.
|
||||
*/
|
||||
|
||||
size(640, 360, P3D);
|
||||
background(0);
|
||||
lights();
|
||||
|
||||
noStroke();
|
||||
pushMatrix();
|
||||
translate(130, height/2, 0);
|
||||
rotateY(1.25);
|
||||
rotateX(-0.4);
|
||||
box(100);
|
||||
popMatrix();
|
||||
|
||||
noFill();
|
||||
stroke(255);
|
||||
pushMatrix();
|
||||
translate(500, height*0.35, -200);
|
||||
sphere(280);
|
||||
popMatrix();
|
||||
|
||||
|
||||
@@ -0,0 +1,74 @@
|
||||
/**
|
||||
* RGB Cube.
|
||||
*
|
||||
* The three primary colors of the additive color model are red, green, and blue.
|
||||
* This RGB color cube displays smooth transitions between these colors.
|
||||
*/
|
||||
|
||||
float xmag, ymag = 0;
|
||||
float newXmag, newYmag = 0;
|
||||
|
||||
void setup()
|
||||
{
|
||||
size(640, 360, P3D);
|
||||
noStroke();
|
||||
colorMode(RGB, 1);
|
||||
}
|
||||
|
||||
void draw()
|
||||
{
|
||||
background(0.5);
|
||||
|
||||
pushMatrix();
|
||||
|
||||
translate(width/2, height/2, -30);
|
||||
|
||||
newXmag = mouseX/float(width) * TWO_PI;
|
||||
newYmag = mouseY/float(height) * TWO_PI;
|
||||
|
||||
float diff = xmag-newXmag;
|
||||
if (abs(diff) > 0.01) { xmag -= diff/4.0; }
|
||||
|
||||
diff = ymag-newYmag;
|
||||
if (abs(diff) > 0.01) { ymag -= diff/4.0; }
|
||||
|
||||
rotateX(-ymag);
|
||||
rotateY(-xmag);
|
||||
|
||||
scale(90);
|
||||
beginShape(QUADS);
|
||||
|
||||
fill(0, 1, 1); vertex(-1, 1, 1);
|
||||
fill(1, 1, 1); vertex( 1, 1, 1);
|
||||
fill(1, 0, 1); vertex( 1, -1, 1);
|
||||
fill(0, 0, 1); vertex(-1, -1, 1);
|
||||
|
||||
fill(1, 1, 1); vertex( 1, 1, 1);
|
||||
fill(1, 1, 0); vertex( 1, 1, -1);
|
||||
fill(1, 0, 0); vertex( 1, -1, -1);
|
||||
fill(1, 0, 1); vertex( 1, -1, 1);
|
||||
|
||||
fill(1, 1, 0); vertex( 1, 1, -1);
|
||||
fill(0, 1, 0); vertex(-1, 1, -1);
|
||||
fill(0, 0, 0); vertex(-1, -1, -1);
|
||||
fill(1, 0, 0); vertex( 1, -1, -1);
|
||||
|
||||
fill(0, 1, 0); vertex(-1, 1, -1);
|
||||
fill(0, 1, 1); vertex(-1, 1, 1);
|
||||
fill(0, 0, 1); vertex(-1, -1, 1);
|
||||
fill(0, 0, 0); vertex(-1, -1, -1);
|
||||
|
||||
fill(0, 1, 0); vertex(-1, 1, -1);
|
||||
fill(1, 1, 0); vertex( 1, 1, -1);
|
||||
fill(1, 1, 1); vertex( 1, 1, 1);
|
||||
fill(0, 1, 1); vertex(-1, 1, 1);
|
||||
|
||||
fill(0, 0, 0); vertex(-1, -1, -1);
|
||||
fill(1, 0, 0); vertex( 1, -1, -1);
|
||||
fill(1, 0, 1); vertex( 1, -1, 1);
|
||||
fill(0, 0, 1); vertex(-1, -1, 1);
|
||||
|
||||
endShape();
|
||||
|
||||
popMatrix();
|
||||
}
|
||||
@@ -0,0 +1,116 @@
|
||||
/**
|
||||
* Shape Transform
|
||||
* by Ira Greenberg.
|
||||
*
|
||||
* Illustrates the geometric relationship
|
||||
* between Cube, Pyramid, Cone and
|
||||
* Cylinder 3D primitives.
|
||||
*
|
||||
* Instructions:<br />
|
||||
* Up Arrow - increases points<br />
|
||||
* Down Arrow - decreases points<br />
|
||||
* 'p' key toggles between cube/pyramid<br />
|
||||
*/
|
||||
|
||||
int pts = 4;
|
||||
float angle = 0;
|
||||
float radius = 99;
|
||||
float cylinderLength = 95;
|
||||
|
||||
//vertices
|
||||
PVector vertices[][];
|
||||
boolean isPyramid = false;
|
||||
|
||||
float angleInc;
|
||||
|
||||
void setup(){
|
||||
size(640, 360, P3D);
|
||||
noStroke();
|
||||
angleInc = PI/300.0;
|
||||
}
|
||||
|
||||
void draw(){
|
||||
background(170, 95, 95);
|
||||
lights();
|
||||
fill(255, 200, 200);
|
||||
translate(width/2, height/2);
|
||||
rotateX(frameCount * angleInc);
|
||||
rotateY(frameCount * angleInc);
|
||||
rotateZ(frameCount * angleInc);
|
||||
|
||||
// initialize vertex arrays
|
||||
vertices = new PVector[2][pts+1];
|
||||
|
||||
// fill arrays
|
||||
for (int i = 0; i < 2; i++){
|
||||
angle = 0;
|
||||
for(int j = 0; j <= pts; j++){
|
||||
vertices[i][j] = new PVector();
|
||||
if (isPyramid){
|
||||
if (i==1){
|
||||
vertices[i][j].x = 0;
|
||||
vertices[i][j].y = 0;
|
||||
}
|
||||
else {
|
||||
vertices[i][j].x = cos(radians(angle)) * radius;
|
||||
vertices[i][j].y = sin(radians(angle)) * radius;
|
||||
}
|
||||
}
|
||||
else {
|
||||
vertices[i][j].x = cos(radians(angle)) * radius;
|
||||
vertices[i][j].y = sin(radians(angle)) * radius;
|
||||
}
|
||||
vertices[i][j].z = cylinderLength;
|
||||
// the .0 after the 360 is critical
|
||||
angle += 360.0/pts;
|
||||
}
|
||||
cylinderLength *= -1;
|
||||
}
|
||||
|
||||
// draw cylinder tube
|
||||
beginShape(QUAD_STRIP);
|
||||
for(int j = 0; j <= pts; j++){
|
||||
vertex(vertices[0][j].x, vertices[0][j].y, vertices[0][j].z);
|
||||
vertex(vertices[1][j].x, vertices[1][j].y, vertices[1][j].z);
|
||||
}
|
||||
endShape();
|
||||
|
||||
//draw cylinder ends
|
||||
for (int i = 0; i < 2; i++){
|
||||
beginShape();
|
||||
for(int j = 0; j < pts; j++){
|
||||
vertex(vertices[i][j].x, vertices[i][j].y, vertices[i][j].z);
|
||||
}
|
||||
endShape(CLOSE);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
up/down arrow keys control
|
||||
polygon detail.
|
||||
*/
|
||||
void keyPressed(){
|
||||
if(key == CODED) {
|
||||
// pts
|
||||
if (keyCode == UP) {
|
||||
if (pts < 90){
|
||||
pts++;
|
||||
}
|
||||
}
|
||||
else if (keyCode == DOWN) {
|
||||
if (pts > 4){
|
||||
pts--;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (key =='p'){
|
||||
if (isPyramid){
|
||||
isPyramid = false;
|
||||
}
|
||||
else {
|
||||
isPyramid = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,182 @@
|
||||
/**
|
||||
* Interactive Toroid
|
||||
* by Ira Greenberg.
|
||||
*
|
||||
* Illustrates the geometric relationship between Toroid, Sphere, and Helix
|
||||
* 3D primitives, as well as lathing principal.
|
||||
*
|
||||
* Instructions: <br />
|
||||
* UP arrow key pts++ <br />
|
||||
* DOWN arrow key pts-- <br />
|
||||
* LEFT arrow key segments-- <br />
|
||||
* RIGHT arrow key segments++ <br />
|
||||
* 'a' key toroid radius-- <br />
|
||||
* 's' key toroid radius++ <br />
|
||||
* 'z' key initial polygon radius-- <br />
|
||||
* 'x' key initial polygon radius++ <br />
|
||||
* 'w' key toggle wireframe/solid shading <br />
|
||||
* 'h' key toggle sphere/helix <br />
|
||||
*/
|
||||
|
||||
int pts = 40;
|
||||
float angle = 0;
|
||||
float radius = 60.0;
|
||||
|
||||
// lathe segments
|
||||
int segments = 60;
|
||||
float latheAngle = 0;
|
||||
float latheRadius = 100.0;
|
||||
|
||||
//vertices
|
||||
PVector vertices[], vertices2[];
|
||||
|
||||
// for shaded or wireframe rendering
|
||||
boolean isWireFrame = false;
|
||||
|
||||
// for optional helix
|
||||
boolean isHelix = false;
|
||||
float helixOffset = 5.0;
|
||||
|
||||
void setup(){
|
||||
size(640, 360, P3D);
|
||||
}
|
||||
|
||||
void draw(){
|
||||
background(50, 64, 42);
|
||||
// basic lighting setup
|
||||
lights();
|
||||
// 2 rendering styles
|
||||
// wireframe or solid
|
||||
if (isWireFrame){
|
||||
stroke(255, 255, 150);
|
||||
noFill();
|
||||
}
|
||||
else {
|
||||
noStroke();
|
||||
fill(150, 195, 125);
|
||||
}
|
||||
//center and spin toroid
|
||||
translate(width/2, height/2, -100);
|
||||
|
||||
rotateX(frameCount*PI/150);
|
||||
rotateY(frameCount*PI/170);
|
||||
rotateZ(frameCount*PI/90);
|
||||
|
||||
// initialize point arrays
|
||||
vertices = new PVector[pts+1];
|
||||
vertices2 = new PVector[pts+1];
|
||||
|
||||
// fill arrays
|
||||
for(int i=0; i<=pts; i++){
|
||||
vertices[i] = new PVector();
|
||||
vertices2[i] = new PVector();
|
||||
vertices[i].x = latheRadius + sin(radians(angle))*radius;
|
||||
if (isHelix){
|
||||
vertices[i].z = cos(radians(angle))*radius-(helixOffset*
|
||||
segments)/2;
|
||||
}
|
||||
else{
|
||||
vertices[i].z = cos(radians(angle))*radius;
|
||||
}
|
||||
angle+=360.0/pts;
|
||||
}
|
||||
|
||||
// draw toroid
|
||||
latheAngle = 0;
|
||||
for(int i=0; i<=segments; i++){
|
||||
beginShape(QUAD_STRIP);
|
||||
for(int j=0; j<=pts; j++){
|
||||
if (i>0){
|
||||
vertex(vertices2[j].x, vertices2[j].y, vertices2[j].z);
|
||||
}
|
||||
vertices2[j].x = cos(radians(latheAngle))*vertices[j].x;
|
||||
vertices2[j].y = sin(radians(latheAngle))*vertices[j].x;
|
||||
vertices2[j].z = vertices[j].z;
|
||||
// optional helix offset
|
||||
if (isHelix){
|
||||
vertices[j].z+=helixOffset;
|
||||
}
|
||||
vertex(vertices2[j].x, vertices2[j].y, vertices2[j].z);
|
||||
}
|
||||
// create extra rotation for helix
|
||||
if (isHelix){
|
||||
latheAngle+=720.0/segments;
|
||||
}
|
||||
else {
|
||||
latheAngle+=360.0/segments;
|
||||
}
|
||||
endShape();
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
left/right arrow keys control ellipse detail
|
||||
up/down arrow keys control segment detail.
|
||||
'a','s' keys control lathe radius
|
||||
'z','x' keys control ellipse radius
|
||||
'w' key toggles between wireframe and solid
|
||||
'h' key toggles between toroid and helix
|
||||
*/
|
||||
void keyPressed(){
|
||||
if(key == CODED) {
|
||||
// pts
|
||||
if (keyCode == UP) {
|
||||
if (pts<40){
|
||||
pts++;
|
||||
}
|
||||
}
|
||||
else if (keyCode == DOWN) {
|
||||
if (pts>3){
|
||||
pts--;
|
||||
}
|
||||
}
|
||||
// extrusion length
|
||||
if (keyCode == LEFT) {
|
||||
if (segments>3){
|
||||
segments--;
|
||||
}
|
||||
}
|
||||
else if (keyCode == RIGHT) {
|
||||
if (segments<80){
|
||||
segments++;
|
||||
}
|
||||
}
|
||||
}
|
||||
// lathe radius
|
||||
if (key =='a'){
|
||||
if (latheRadius>0){
|
||||
latheRadius--;
|
||||
}
|
||||
}
|
||||
else if (key == 's'){
|
||||
latheRadius++;
|
||||
}
|
||||
// ellipse radius
|
||||
if (key =='z'){
|
||||
if (radius>10){
|
||||
radius--;
|
||||
}
|
||||
}
|
||||
else if (key == 'x'){
|
||||
radius++;
|
||||
}
|
||||
// wireframe
|
||||
if (key =='w'){
|
||||
if (isWireFrame){
|
||||
isWireFrame=false;
|
||||
}
|
||||
else {
|
||||
isWireFrame=true;
|
||||
}
|
||||
}
|
||||
// helix
|
||||
if (key =='h'){
|
||||
if (isHelix){
|
||||
isHelix=false;
|
||||
}
|
||||
else {
|
||||
isHelix=true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,67 @@
|
||||
/**
|
||||
* Vertices
|
||||
* by Simon Greenwold.
|
||||
*
|
||||
* Draw a cylinder centered on the y-axis, going down
|
||||
* from y=0 to y=height. The radius at the top can be
|
||||
* different from the radius at the bottom, and the
|
||||
* number of sides drawn is variable.
|
||||
*/
|
||||
|
||||
void setup() {
|
||||
size(640, 360, P3D);
|
||||
}
|
||||
|
||||
void draw() {
|
||||
background(0);
|
||||
lights();
|
||||
translate(width / 2, height / 2);
|
||||
rotateY(map(mouseX, 0, width, 0, PI));
|
||||
rotateZ(map(mouseY, 0, height, 0, -PI));
|
||||
noStroke();
|
||||
fill(255, 255, 255);
|
||||
translate(0, -40, 0);
|
||||
drawCylinder(10, 180, 200, 16); // Draw a mix between a cylinder and a cone
|
||||
//drawCylinder(70, 70, 120, 64); // Draw a cylinder
|
||||
//drawCylinder(0, 180, 200, 4); // Draw a pyramid
|
||||
}
|
||||
|
||||
void drawCylinder(float topRadius, float bottomRadius, float tall, int sides) {
|
||||
float angle = 0;
|
||||
float angleIncrement = TWO_PI / sides;
|
||||
beginShape(QUAD_STRIP);
|
||||
for (int i = 0; i < sides + 1; ++i) {
|
||||
vertex(topRadius*cos(angle), 0, topRadius*sin(angle));
|
||||
vertex(bottomRadius*cos(angle), tall, bottomRadius*sin(angle));
|
||||
angle += angleIncrement;
|
||||
}
|
||||
endShape();
|
||||
|
||||
// If it is not a cone, draw the circular top cap
|
||||
if (topRadius != 0) {
|
||||
angle = 0;
|
||||
beginShape(TRIANGLE_FAN);
|
||||
|
||||
// Center point
|
||||
vertex(0, 0, 0);
|
||||
for (int i = 0; i < sides + 1; i++) {
|
||||
vertex(topRadius * cos(angle), 0, topRadius * sin(angle));
|
||||
angle += angleIncrement;
|
||||
}
|
||||
endShape();
|
||||
}
|
||||
|
||||
// If it is not a cone, draw the circular bottom cap
|
||||
if (bottomRadius != 0) {
|
||||
angle = 0;
|
||||
beginShape(TRIANGLE_FAN);
|
||||
|
||||
// Center point
|
||||
vertex(0, tall, 0);
|
||||
for (int i = 0; i < sides + 1; i++) {
|
||||
vertex(bottomRadius * cos(angle), tall, bottomRadius * sin(angle));
|
||||
angle += angleIncrement;
|
||||
}
|
||||
endShape();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user