Created
December 19, 2023 19:05
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"Wormhole" simulation in Processing
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| int FRAMES = 250; | |
| void setup() { | |
| size(500, 500, P3D); | |
| ellipseMode(RADIUS); | |
| } | |
| void draw() { | |
| background(50); | |
| translate(width/2, height/2, 0); | |
| stroke(50, 200, 50); | |
| strokeWeight(2); | |
| fill(0); | |
| float t = map(frameCount, 0, FRAMES, 0, TWO_PI); | |
| rotateX(sin(t) * QUARTER_PI); | |
| rotateZ(t); | |
| int step = 8; | |
| int h = 250; | |
| for (int r = 0; r < width; r += step) { | |
| float nr1 = float(r) / width; // Normalized radius | |
| float z1 = h * getZ(nr1); | |
| float r2 = r + step; | |
| float nr2 = r2 / width; | |
| float z2 = h * getZ(nr2); | |
| beginShape(TRIANGLE_STRIP); | |
| for (int a = 0; a <= 360; a += 15) { | |
| float rdn1 = radians(a); | |
| float rdn2 = radians(a + 15); | |
| float x1 = r * cos(rdn1); | |
| float y1 = r * sin(rdn1); | |
| vertex(x1, y1, z1); | |
| float x2 = r2 * cos(rdn2); | |
| float y2 = r2 * sin(rdn2); | |
| vertex(x2, y2, z2); | |
| } | |
| endShape(CLOSE); | |
| } | |
| } | |
| /** Returns the z-coordinate of a given position on the curve */ | |
| float getZ(float x) { | |
| return 1 - (0.1 / x); | |
| } |
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