Precise Perlin Initial Position
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Programming Questions
•
1 year ago
Is this possible?
For example, using Shiffman's 1D Perlin case below, how would I initialize the ellipse to always start in the middle of the window at runtime, and then smoothly proceed with its Perlin perambulations?
For example, using Shiffman's 1D Perlin case below, how would I initialize the ellipse to always start in the middle of the window at runtime, and then smoothly proceed with its Perlin perambulations?
- float xoff = 0.0;
- float xincrement = 0.01;
- void setup() {
- size(200,200);
- background(0);
- frameRate(30);
- smooth();
- noStroke();
- }
- void draw()
- {
- // Create an alpha blended background
- fill(0, 10);
- rect(0,0,width,height);
- //float n = random(0,width); // Try this line instead of noise
- // Get a noise value based on xoff and scale it according to the window's width
- float n = noise(xoff)*width;
- // With each cycle, increment xoff
- xoff += xincrement;
- // Draw the ellipse at the value produced by perlin noise
- fill(200);
- ellipse(n,height/2,16,16);
- }
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