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TreetopFlyer 2021-07-07 07:00:50 -04:00
parent c9905db6d2
commit dc2f826688
2 changed files with 121 additions and 111 deletions
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175
index.html
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@ -19,122 +19,75 @@
</head>
<body>
<canvas></canvas>
<script type="module">
import * as T from 'http://esm.sh/three';
import { OrbitControls } from 'http://esm.sh/three/examples/jsm/controls/OrbitControls.js';
import { Region, Kernel } from "./region.js";
import { Scene, THREE } from './scene.js';
const renderer = new T.WebGLRenderer({canvas:document.querySelector("canvas")});
const scene = new T.Scene();
const camera = new T.PerspectiveCamera(80, 2, 0.1, 10);
const light = new T.DirectionalLight(0xFFFFFF, 1);
const geometry = new T.BoxGeometry(0.8, 0.8, 0.8);
const shader = new T.MeshPhongMaterial({color:0xFFCC00});
const shaderBlue = new T.MeshPhongMaterial({color:0x0033FF});
const object = new T.Mesh(geometry, shader);
const controls = new OrbitControls(camera, renderer.domElement);
controls.update();
scene.add(light);
scene.add(object);
scene.add(new T.GridHelper(10, 10));
const geoBuff = new T.BufferGeometry();
geoBuff.setAttribute("position", new T.BufferAttribute(new Float32Array(
[
0, 0, 0,
1, 0, 0,
1, 1, 0,
0, 1, 0,
2, 0, 1,
2, 1, 1
]
), 3));
geoBuff.setIndex(
[
0, 1, 2,
2, 3, 0,
1, 4, 5,
5, 2, 1
]
);
geoBuff.computeVertexNormals();
const geoObj = new T.Mesh(geoBuff, shader);
shader.shading = T.FlatShading;
scene.add(geoObj);
/*
let r = Region.Create();
let filler = (x, y, z) =>
{
r.Voxels[Region.CoordsToIndex(x, y, z)] = true;
};
filler(1, 1, 1);
Kernel.Loop(Kernel.Corners, [1, 1, 1], filler);
Kernel.Loop(Kernel.Cardinal, [1, 1, 1], filler);
Region.Update(r);
r.Filled.forEach((inIndexMap) =>
{
let coords = Region.IndexToCoords(inIndexMap);
let cube = new T.Mesh(geometry, shader);
cube.position.set(...coords);
scene.add(cube);
});
r.Surface.forEach((inIndexMap) =>
{
let coords = Region.IndexToCoords(inIndexMap);
let cube = new T.Mesh(geometry, shaderBlue);
cube.position.set(...coords);
scene.add(cube);
});
*/
light.position.set(-1, 2, 4);
camera.position.set(0, 0, 2);
let dirty = false;
const update = inTime =>
{
let timeNew = new Date();
let timeDelta = timeNew - inTime;
let delta = timeDelta * 0.001;
object.rotation.x += delta;
controls.update();
dirty = true;
setTimeout(()=>update(timeNew), 100);
}
const render = inTime =>
{
if(dirty)
let average = (inPoints, inCenter) =>
{
renderer.render(scene, camera);
dirty = false;
let output = [0, 0, 0];
for(let i=0; i<inPoints.length; i+=3)
{
output[0] += inPoints[i+0];
output[1] += inPoints[i+1];
output[2] += inPoints[i+2];
}
let scalar = inPoints.length/3;
output[0] /= scalar;
output[1] /= scalar;
output[2] /= scalar;
let limit = (inShifted) =>
{
if(inShifted < -0.5)
{
return -0.5;
}
if(inShifted > 0.5)
{
return 0.5;
}
return inShifted;
}
output[0] = limit(output[0] - inCenter[0]);
output[1] = limit(output[1] - inCenter[1]);
output[2] = limit(output[2] - inCenter[2]);
return output;
};
const points =
[
0, 0, 0,
0, 1, 0,
1, 1, 0,
2, 1, 0,
2, 0, 0,
3, 0, 0,
4, 0, 0,
4, 1, 0
];
const geometry = new THREE.BufferGeometry();
geometry.setAttribute('position', new THREE.Float32BufferAttribute( points, 3 ));
const material = new THREE.LineBasicMaterial( { color: 0x0000ff, linewidth: 3 } );
const line = new THREE.Line( geometry, material );
Scene(
{
DOM:"canvas",
Init(inScene)
{
inScene.add( line );
},
Update(scene, delta)
{
}
}
requestAnimationFrame(render);
}
);
const resize = () =>
{
let canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
renderer.setSize(canvas.clientWidth, canvas.clientHeight, false);
};
window.addEventListener("resize", resize);
resize();
render(0);
update(new Date());
</script>
</body>

57
scene.js Normal file
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@ -0,0 +1,57 @@
import * as T from 'http://esm.sh/three';
import { OrbitControls } from 'http://esm.sh/three/examples/jsm/controls/OrbitControls.js';
export { T as THREE };
export function Scene(inSettings)
{
const renderer = new T.WebGLRenderer({canvas:document.querySelector(inSettings.DOM)});
const scene = new T.Scene();
const camera = new T.PerspectiveCamera(80, 2, 0.1, 10);
const light = new T.DirectionalLight(0xFFFFFF, 1);
const controls = new OrbitControls(camera, renderer.domElement);
let dirty = false;
const update = inTime =>
{
let timeNew = new Date();
let timeDelta = timeNew - inTime;
let delta = timeDelta * 0.001;
inSettings.Update(scene, delta);
controls.update();
dirty = true;
setTimeout(()=>update(timeNew), 50);
}
const render = inTime =>
{
if(dirty)
{
renderer.render(scene, camera);
dirty = false;
}
requestAnimationFrame(render);
}
const resize = () =>
{
let canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
renderer.setSize(canvas.clientWidth, canvas.clientHeight, false);
};
scene.add(light);
scene.add(new T.GridHelper(10, 10));
light.position.set(-1, 2, 4);
camera.position.set(0, 0, 2);
controls.update();
inSettings.Init(scene);
window.addEventListener("resize", resize);
resize();
render(0);
update(new Date());
};