我用PIXI JS制作了水平滚动网站,它有连锁反应。 到目前为止,它工作正常,但唯一的问题是,当我打开网站时,它显示的质量非常低,并且根据我的了解,PIXI JS 渲染器的宽度和高度为 800 x 600 分辨率。 有什么想法如何改变质量吗?
这是 PIXI JS 代码片段:
// Set up the variables needed and loads the images to create the effect.
// Once the images are loaded the ‘setup’ function will be called.
const app = new PIXI.Application({
width: window.innerWidth,
height: window.innerHeight,
resolution: 1,
antialias : true
});
document.body.appendChild(app.view);
app.stage.interactive = true;
var posX, displacementSprite, displacementFilter, bg, vx;
var container = new PIXI.Container();
app.stage.addChild(container);
PIXI.loader.add("depth.png").add("polygonexample.jpg").load(setup);
// In the ‘setup’ function the displacement sprite is created
// that will create the effect and this is added to a displacement filter.
// It’s then set to move its anchor point to the centre of the image and positioned on the screen.
function setup() {
posX = app.renderer.width / 2;
displacementSprite = new PIXI.Sprite(PIXI.loader.resources["depth.png"].texture);
displacementFilter = new PIXI.filters.DisplacementFilter(displacementSprite);
displacementSprite.anchor.set(0.5);
displacementSprite.x = app.renderer.width / 2;
displacementSprite.y = app.renderer.height / 2;
vx = displacementSprite.x;
// To finish off the ‘setup’ function, the displacement filter scale is set and the background positioned.
// Notice the scale is ‘0’ for the displacement, that’s because it will be set to a height as soon as the mouse moves.
app.stage.addChild(displacementSprite);
container.filters = [displacementFilter];
displacementFilter.scale.x = 0;
displacementFilter.scale.y = 0;
bg = new PIXI.Sprite(PIXI.loader.resources["polygonexample.jpg"].texture);
bg.width = app.renderer.width;
bg.height = app.renderer.height;
container.addChild(bg);
app.stage.on('mousemove', onPointerMove).on('touchmove', onPointerMove);
loop();
}
// grab the position of the mouse on the x-axis whenever the mouse moves.
function onPointerMove(eventData) {
posX = eventData.data.global.x;
}
// create a function that continually updates the screen. A velocity for the x-axis is worked out using the position of the mouse and the ripple.
function loop() {
requestAnimationFrame(loop);
vx += (posX - displacementSprite.x) * 0.045;
displacementSprite.x = vx;
var disp = Math.floor(posX - displacementSprite.x);
if (disp < 0) disp = -disp;
var fs = map(disp, 0, 500, 0, 120);
disp = map(disp, 0, 500, 0.1, 0.6);
displacementSprite.scale.x = disp;
displacementFilter.scale.x = fs;
}
// Finally, the map function is declared that maps value ranges to new values.
map = function(n, start1, stop1, start2, stop2) {
var newval = (n - start1) / (stop1 - start1) * (stop2 - start2) + start2;
return newval;
};
<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/5.3.7/pixi.min.js"></script>
尝试使用此代码创建渲染器
const app = new PIXI.Application({
width: window.innerWidth,
height: window.innerHeight,
resolution: 1,
});
但是,如果您在创建渲染器后调整窗口大小,它不会自动调整为窗口大小。要解决这个问题,你可以监听 resize 事件
编辑:删除边距也可能有帮助。
body {
margin: 0;
padding: 0;
overflow: hidden;
}
canvas {
display: block;
}
刚刚找到答案,实际上这是非常愚蠢的事情。
问题在于宽度和高度设置为 window.innerWidth 和 window.innerHeight。我的图像质量相当高,所以基本上将 PIXI.Application 内的宽度和高度乘以 3 或 4 可以提高质量。
const app = new PIXI.Application({
width: window.innerWidth*3,
height: window.innerHeight*3,
resolution: 1,
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/5.3.7/pixi.min.js"></script>
您可以做两件事:
1.:使用分辨率:1:
new PIXI.Application({resolution: 1})
new PIXI.Application({antialias: true})
(使用分辨率:1并没有直接修复我的项目,使用抗锯齿也并没有真正添加更多像素,但它确实使它看起来像素比实际多)
纹理也会自动缩放,为了使缩放更平滑,请使用
PIXI.settings.SCALE_MODE = PIXI.SCALE_MODES.LINEAR;