我試著把它放在 CSS p{ z-index: 99 !important; 它沒有用我只想讓 html 中的所有內容都出現在影片的頂部，這里是代碼::
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
</head>
<body>
<div id="container">
<p>hellpo</p>
</div>
<script id="vertex-shader" type="no-js">
void main() {
gl_Position = vec4( position, 1.0 );
}
</script>
<script id="fragment-shader" type="no-js">
uniform float iGlobalTime;
uniform vec2 iResolution;
const int NUM_STEPS = 8;
const float PI = 3.1415;
const float EPSILON = 1e-3;
float EPSILON_NRM = 0.1 / iResolution.x;
// sea variables
const int ITER_GEOMETRY = 3;
const int ITER_FRAGMENT = 5;
const float SEA_HEIGHT = 0.6;
const float SEA_CHOPPY = 1.0;
const float SEA_SPEED = 1.0;
const float SEA_FREQ = 0.16;
const vec3 SEA_BASE = vec3(0.1,0.19,0.22);
const vec3 SEA_WATER_COLOR = vec3(0.8,0.9,0.6);
float SEA_TIME = iGlobalTime * SEA_SPEED;
mat2 octave_m = mat2(1.6,1.2,-1.2,1.6);
mat3 fromEuler(vec3 ang) {
vec2 a1 = vec2(sin(ang.x),cos(ang.x));
vec2 a2 = vec2(sin(ang.y),cos(ang.y));
vec2 a3 = vec2(sin(ang.z),cos(ang.z));
mat3 m;
m[0] = vec3(
a1.y*a3.y a1.x*a2.x*a3.x,
a1.y*a2.x*a3.x a3.y*a1.x,
-a2.y*a3.x
);
m[1] = vec3(-a2.y*a1.x,a1.y*a2.y,a2.x);
m[2] = vec3(
a3.y*a1.x*a2.x a1.y*a3.x,
a1.x*a3.x-a1.y*a3.y*a2.x,
a2.y*a3.y
);
return m;
}
float hash( vec2 p ) {
float h = dot(p,vec2(127.1,311.7));
return fract(sin(h)*43758.5453123);
}
float noise( in vec2 p ) {
vec2 i = floor(p);
vec2 f = fract(p);
vec2 u = f * f * (3.0 - 2.0 * f);
return -1.0 2.0 * mix(
mix(
hash(i vec2(0.0,0.0)
),
hash(i vec2(1.0,0.0)), u.x),
mix(hash(i vec2(0.0,1.0) ),
hash(i vec2(1.0,1.0) ), u.x),
u.y
);
}
float diffuse(vec3 n,vec3 l,float p) {
return pow(dot(n,l) * 0.4 0.6,p);
}
float specular(vec3 n,vec3 l,vec3 e,float s) {
float nrm = (s 8.0) / (3.1415 * 8.0);
return pow(max(dot(reflect(e,n),l),0.0),s) * nrm;
}
vec3 getSkyColor(vec3 e) {
e.y = max(e.y, 0.0);
vec3 ret;
ret.x = pow(1.0 - e.y, 2.0);
ret.y = 1.0 - e.y;
ret.z = 0.6 (1.0 - e.y) * 0.4;
return ret;
}
float sea_octave(vec2 uv, float choppy) {
uv = noise(uv);
vec2 wv = 1.0 - abs(sin(uv));
vec2 swv = abs(cos(uv));
wv = mix(wv, swv, wv);
return pow(1.0 - pow(wv.x * wv.y, 0.65), choppy);
}
float map(vec3 p) {
float freq = SEA_FREQ;
float amp = SEA_HEIGHT;
float choppy = SEA_CHOPPY;
vec2 uv = p.xz;
uv.x *= 0.75;
float d, h = 0.0;
for(int i = 0; i < ITER_GEOMETRY; i ) {
d = sea_octave((uv SEA_TIME) * freq, choppy);
d = sea_octave((uv - SEA_TIME) * freq, choppy);
h = d * amp;
uv *= octave_m;
freq *= 1.9;
amp *= 0.22;
choppy = mix(choppy, 1.0, 0.2);
}
return p.y - h;
}
float map_detailed(vec3 p) {
float freq = SEA_FREQ;
float amp = SEA_HEIGHT;
float choppy = SEA_CHOPPY;
vec2 uv = p.xz;
uv.x *= 0.75;
float d, h = 0.0;
for(int i = 0; i < ITER_FRAGMENT; i ) {
d = sea_octave((uv SEA_TIME) * freq, choppy);
d = sea_octave((uv-SEA_TIME) * freq, choppy);
h = d * amp;
uv *= octave_m;
freq *= 1.9;
amp *= 0.22;
choppy = mix(choppy,1.0,0.2);
}
return p.y - h;
}
vec3 getSeaColor(
vec3 p,
vec3 n,
vec3 l,
vec3 eye,
vec3 dist
) {
float fresnel = 1.0 - max(dot(n,-eye),0.0);
fresnel = pow(fresnel,3.0) * 0.65;
vec3 reflected = getSkyColor(reflect(eye,n));
vec3 refracted = SEA_BASE diffuse(n,l,80.0) * SEA_WATER_COLOR * 0.12;
vec3 color = mix(refracted,reflected,fresnel);
float atten = max(1.0 - dot(dist,dist) * 0.001, 0.0);
color = SEA_WATER_COLOR * (p.y - SEA_HEIGHT) * 0.18 * atten;
color = vec3(specular(n,l,eye,60.0));
return color;
}
// tracing
vec3 getNormal(vec3 p, float eps) {
vec3 n;
n.y = map_detailed(p);
n.x = map_detailed(vec3(p.x eps,p.y,p.z)) - n.y;
n.z = map_detailed(vec3(p.x,p.y,p.z eps)) - n.y;
n.y = eps;
return normalize(n);
}
float heightMapTracing(vec3 ori, vec3 dir, out vec3 p) {
float tm = 0.0;
float tx = 1000.0;
float hx = map(ori dir * tx);
if(hx > 0.0) {
return tx;
}
float hm = map(ori dir * tm);
float tmid = 0.0;
for(int i = 0; i < NUM_STEPS; i ) {
tmid = mix(tm,tx, hm/(hm-hx));
p = ori dir * tmid;
float hmid = map(p);
if(hmid < 0.0) {
tx = tmid;
hx = hmid;
} else {
tm = tmid;
hm = hmid;
}
}
return tmid;
}
void main() {
vec2 uv = gl_FragCoord.xy / iResolution.xy;
uv = uv * 2.0 - 1.0;
uv.x *= iResolution.x / iResolution.y;
float time = iGlobalTime * 0.3;
// ray
vec3 ang = vec3(
sin(time*3.0)*0.1,sin(time)*0.2 0.3,time
);
vec3 ori = vec3(0.0,3.5,time*5.0);
vec3 dir = normalize(
vec3(uv.xy,-2.0)
);
dir.z = length(uv) * 0.15;
dir = normalize(dir);
// tracing
vec3 p;
heightMapTracing(ori,dir,p);
vec3 dist = p - ori;
vec3 n = getNormal(
p,
dot(dist,dist) * EPSILON_NRM
);
vec3 light = normalize(vec3(0.0,1.0,0.8));
// color
vec3 color = mix(
getSkyColor(dir),
getSeaColor(p,n,light,dir,dist),
pow(smoothstep(0.0,-0.05,dir.y),0.3)
);
// post
gl_FragColor = vec4(pow(color,vec3(0.75)), 1.0);
}
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r77/three.min.js"></script>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="script.js"></script>
</body>
</html>
css
body {
overflow: hidden;
margin: 0;
}
p{ z-index: 99 !important; }
JavaScript
var container,
renderer,
scene,
camera,
mesh,
start = Date.now(),
fov = 30;
var clock = new THREE.Clock();
var timeUniform = {
iGlobalTime: {
type: 'f',
value: 0.1
},
iResolution: {
type: 'v2',
value: new THREE.Vector2()
}
};
timeUniform.iResolution.value.x = window.innerWidth;
timeUniform.iResolution.value.y = window.innerHeight;
window.addEventListener('load', function() {
container = document.getElementById('container');
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(
fov,
window.innerWidth / window.innerHeight,
1,
10000
);
camera.position.x = 20;
camera.position.y = 10;
camera.position.z = 20;
camera.lookAt(scene.position);
scene.add(camera);
var axis = new THREE.AxisHelper(10);
scene.add (axis);
material = new THREE.ShaderMaterial({
uniforms: timeUniform,
vertexShader: document.getElementById('vertex-shader').textContent,
fragmentShader: document.getElementById('fragment-shader').textContent
});
var water = new THREE.Mesh(
new THREE.PlaneBufferGeometry(window.innerWidth, window.innerHeight, 40), material
);
scene.add(water);
var geometry = new THREE.SphereGeometry( 10, 32, 32 );
var material = new THREE.MeshBasicMaterial( {color: 0xffff00} );
var sphere = new THREE.Mesh( geometry, material );
scene.add( sphere );
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
render();
});
window.addEventListener('resize',function() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
});
function render() {
timeUniform.iGlobalTime.value = clock.getDelta();
renderer.render(scene, camera);
requestAnimationFrame(render);
}
///////////////////////////////////////// ///////////////////////////////////////// ///////////////////////////////////////// ///////////////////////////////////////// ////
uj5u.com熱心網友回復：
您可以將您的影片包裝在一個 div（您的 ThreeJs 畫布）中。給它div并添加這個樣式
position: absolute;
top: 0;
left: 0;
z-index: -1;
和做#container position: relative
轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/441522.html
標籤：javascript html jQuery css 三.js
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