ジオメトリ（幾何学）
p5では、現在7つの 3D プリミティブが利用可能です。
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function setup() {
createCanvas(710, 400, WEBGL);
describe(
'a 3d example containing seven primitive objects, a plane, box, cylinder, cone, torus, sphere, and ellipsoid.'
);
}
function draw() {
background(250);
normalMaterial();
push();
translate(-240, -100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
plane(70);
pop();
push();
translate(0, -100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
box(70, 70, 70);
pop();
push();
translate(240, -100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
cylinder(70, 70);
pop();
push();
translate(-250, 100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
cone(50, 70);
pop();
push();
translate(-75, 100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
torus(50, 20);
pop();
push();
translate(100, 100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
sphere(50);
pop();
push();
translate(275, 100, 0);
rotateZ(frameCount * 0.01);
rotateX(frameCount * 0.01);
rotateY(frameCount * 0.01);
ellipsoid(30, 40, 40);
pop();
}
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