Hello,
I made a few movies using processing.
A toast to hamoid and his great lib.
Is somebody is interested in the code, tell me.
Regards, Chrisir
20 Likes
Believe you mentioned something about two different Moebius band/strip formulas on the German Wikipedia a little while back. Did you use a separate one for the red and yellow coloured one?
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These are great 
1 Like
Did you use a separate one for the red and yellow coloured one?
There are apparently two different kinds of Moebius Strips, this one (1) and the one where you cut a paper strip and glue it back together 180 degree turned (2).
Anyway, both Moebius Strips above are based on the same formula (1). The difference is that one consists of small yellow spheres forming the strip and one has a red quad_strip shape made from their positions.
Here are the formulas:
(1)
The formula I used:
see Möbiusband – Wikipedia
(2)
see under (f)
see Regelfläche – Wikipedia
3 Likes
Definitely interested in your code, Chrisir, especially your fireworks. They are super realistic! Are you using OpenProcessing? If so, I just need the sketch numbers.
2 Likes
I will post it later
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Great stuff–thanks for sharing. The Marble track reminded me of great CGI classics like the Mind’s Eye series.
I also enjoyed the small set / stage that you made for rotating some of your pieces.
3 Likes
here it is.
- For saving images to make a movie from, set videoExportIsOn1 to true
Chrisir
ArrayList<Spark> sparks = new ArrayList();
int divider=1;
// ***************************************************************************
boolean videoExportIsOn1 = false;// *******************************************
// ***************************************************************************
// -------------------------------------------------------------------------------
void setup() {
size(1240, 960, P3D);
noStroke();
fill(255);
sphereDetail(5);
}
void draw() {
background(0);
lights();
// text
fill(255);
text("Click mouse to start firework. Hold any key for spheres.", 22, 22);
// manage sparks
if (keyPressed) {
noStroke();
}
for (Spark Spark : sparks) {
Spark.move();
Spark.display();
Spark.script();
}
// remove dead ones
for (int i=sparks.size()-1; i>=0; i--) {
Spark s = sparks.get(i);
if (s.isDead)
sparks.remove(i);
}
// spawn new
if (frameCount%divider == 0) {
mousePressedNew();
divider=int(random(13, 33));
}
// images for movie (menu tools)
if (videoExportIsOn1) {
// Saves each frame as line-000001.png, line-000002.png, etc.
saveFrame("line-######.png");
}
}
// ---------------------------------------------------------------------------------
// Input
void mousePressed() {
int colType=int(random (7));
for (int i=0; i<1000; i++) {
Spark spark = new Spark(width/2, height-4, 4);
sparks.add(spark);
spark.jump( mouseX, mouseY, colType);
}
}
// --------------------------------------------------------------------------
// Tools
void mousePressedNew() {
int colType=int(random (7));
float x= random(44, width-44);
float y= random(44, height-44); // random(33, 220);
for (int i=0; i<990; i++) {
Spark spark = new Spark(width/2, height-4, 4);
sparks.add(spark);
spark.jump( x, y, colType );
}
}
// ================================================================
class Spark {
float x, y, z; // position
float diameter; // Durchmesser
float gravity = 0.53; // Gravitation
color col;
final int stateWait=0;
final int stateTriggered=1;
final int stateJump=2;
int state = stateWait;
int timer;
int duration;
float angle, radius, radius_Add;
float maxRadius=1000;
float centerX, centerY;
boolean isDead=false;
// Constructor
Spark(float x_in, float y_in,
float diameter_in) {
x = x_in;
y = y_in;
diameter = diameter_in;
}// Constructor
void move() {
// Spark move
// move
x = centerX+cos(angle)*radius;
y = centerY+sin(angle)*radius;
radius+=radius_Add;
if (radius>maxRadius)
isDead=true;
}// function
// start spark
void jump( float x, float y, int colType ) {
timer=millis();
// duration for this spark to start after ignition
duration=int(random(0, 90));
state=stateTriggered;
centerX=x;
centerY=y;
angle=random(0, TWO_PI);
maxRadius= random(90, 200);
diameter=random(1.5, 7.7);
// print(colType);
switch (colType) {
case 0:
col = color(random(256), random(256), random(256));
break;
case 1:
col = color(random(256), 0, 0);
break;
case 2:
col = color(random(256));
break;
case 3:
col = color(random(254, 256));
break;
case 4:
// blue or white
if (random(100)>50)
col = color(0, 0, random(254, 256));//blue
else col = color(random(254, 256)); // white
break;
case 5:
// A or B
if (random(100)>50)
col = color(random(50, 256), random(50, 256), random(50, 256));
else col = color(random(256), random(256), random(256));
break;
default:
col = color(random(33), random(22), random(256));
break;
}
}
void script() {
switch(state) {
case stateWait:
//
diameter-=.1;
break;
case stateTriggered:
if (millis()-timer>duration)
state=stateJump;
break;
case stateJump:
jump2();
state=0;
break;
default:
println("Error 114");
exit();
break;
}//switch
}//method
void jump2() {
//starts explosion
radius_Add=random(2.1, 9.4);
}// function
void display() {
// Spark display
if (!keyPressed) {
fill(col);
ellipse(x, y, diameter, diameter);
} else {
pushMatrix();
translate(x, y, 0);
fill(col);
sphere(diameter);
popMatrix();
}//else
//
}// function
//
}//class
//
4 Likes
Thanks for the code. I have it running on Open
Processing as https://www.openprocessing.org/sketch/744586.
3 Likes
These. Are. Amazing! I would love to see more of these 
1 Like
I made a github upload of one of the Moebius Strips
Showing also the green stage with the clouds
see https://github.com/Kango/3DSketches/tree/master/Moebius4
2 Likes
8 Likes
Great…, my favorite one is the Moebius strip!
1 Like
Here is another 3D movie I made with processing
It’s a Play-through of a Mondrian Game I made.
It’s a Homage to Mondrian, see Gioco da definire - #11 by Chrisir
The levels Mondrian runs through are similar to his own art work. In each level he has to reach a rotating gate that leads to the next level. It’s a simple cursor steering plus space to jump.
Chrisir
8 Likes
Added a 3D Tic-Tac-Toe
5 Likes
Do you know the game peg solitaire?
Here is a movie of a 3D version of peg solitaire, 3D-Solitaire. It has 7 etages / levels and is playable by mouse. You can change the view with Peasycam. You can save and load games.
5 Likes
3D Editor with 3D cursor and 3 different views
I am willing to share all the Code for the movies, just ask
Chrisir
2 Likes
preliminary for Turtle (Logo) for kids
This is a video that shows a Sketch that is a preliminary for Turtle (Logo) for kids.
Kids learn what the Turtle is and can steer it with the mouse.
Message me when you want to see the code.
(there’s one version with mouse input and one with keyboard input (for steering the mouse))
4 Likes