rsnext/examples/with-three-js/pages/birds.js

49 lines
1.4 KiB
JavaScript

import { Suspense, useMemo } from "react";
import { Canvas } from "@react-three/fiber";
import { OrbitControls } from "@react-three/drei";
import Bird from "../components/Bird";
export default function BirdsPage() {
const birds = useMemo(
() =>
new Array(10).fill().map((_, index) => {
const x =
(15 + Math.random() * 30) * (Math.round(Math.random()) ? -1 : 1);
const y = -10 + Math.random() * 20;
const z = -5 + Math.random() * 10;
const bird = ["stork", "parrot", "flamingo"][
Math.round(Math.random() * 2)
];
const speed = bird === "stork" ? 0.5 : bird === "flamingo" ? 2 : 5;
const factor =
bird === "stork"
? 0.5 + Math.random()
: bird === "flamingo"
? 0.25 + Math.random()
: 1 + Math.random() - 0.5;
return {
key: index,
position: [x, y, z],
rotation: [0, x > 0 ? Math.PI : 0, 0],
speed,
factor,
url: `/glb/${bird}.glb`,
};
}),
[],
);
return (
<Canvas camera={{ position: [0, 0, 35] }}>
<ambientLight intensity={2} />
<pointLight position={[40, 40, 40]} />
<OrbitControls />
<Suspense fallback={null}>
{birds.map((props) => (
<Bird {...props} key={props.key} />
))}
</Suspense>
</Canvas>
);
}