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44 lines
932 B
Plaintext
44 lines
932 B
Plaintext
/**
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* Triangle Flower
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* by Ira Greenberg.
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*
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* Using rotate() and triangle() functions generate a pretty
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* flower. Uncomment the line "// rotate(rot+=radians(spin));"
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* in the triBlur() function for a nice variation.
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*/
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PVector[] p = new PVector[3];
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float shift = 0.2;
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float fade = 0;
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float fillCol = 0;
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float rot = 0;
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float spin = 0;
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void setup() {
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size(640, 360);
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background(0);
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smooth();
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fade = 255.0 / (width*0.5 / shift);
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spin = 360.0 / (width*0.5 / shift);
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p[0] = new PVector(-width/2, height/2);
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p[1] = new PVector(width/2, height/2);
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p[2] = new PVector(0, -height/2);
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noStroke();
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translate(width/2, height/2);
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triBlur();
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}
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void triBlur() {
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fill(fillCol);
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fillCol += fade;
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rotate(spin);
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triangle(p[0].x += shift, p[0].y -= shift/2,
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p[1].x -= shift, p[1].y -= shift/2,
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p[2].x, p[2].y += shift);
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if (p[0].x < 0) {
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// ecursive call
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triBlur();
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}
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}
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