paralax is not working after update

jensdan · wrote on Nov 12, 2020, 8:12 AM

Hi Richard

Thanks for your reply!!

Yes I do have custom Javascript added relating to a 'reform.woff' font – the custom java is only used on this page: http://www.re-form.dk/2020_open_call

And yes, the Lay Theme Carousel addon (the only one I am using) is up to date.

Any suggestions for what I can do? I think it is very strange that it is working on one page and not another...

Thanks again!
Best, Jens

Richard · wrote on Nov 12, 2020, 6:11 PM

Dear Jens @jensdan

Could you post this Custom Code if possible? :)

Best
Richard

jensdan · wrote on Nov 12, 2020, 7:44 PM

Sure thing.

This is all placed in "Custom <head> content":

const createBlotterGeneratorText = () => {
// Define text style
const text = new Blotter.Text('RE', {
family: "'reform_mmxx-4', serif",
size: 500,
paddingLeft: 100,
paddingRight: 100
});

// Use a material
// https://blotter.js.org/#/materials
let material = new Blotter.LiquidDistortMaterial();

// Set material opts
material.uniforms.uSpeed.value = 0.2;
material.uniforms.uVolatility.value = 0.5;
material.uniforms.uSeed.value = 0.1;

let blotter = new Blotter(material, {
texts: text
});

// Apply to element
let scope = blotter.forText(text);
let elem = document.getElementById('blotter-container');
scope.appendTo(elem);    

};

    WebFont.load({
    custom: {
    families: ['reform_mmxx-4'],
    urls: ['http://www.http://www.re-form.dk/wp-content/uploads/2020/02/reform_mmxx-4.woff']
    },
    active: () => createBlotterGeneratorText()
});


}

});
</script>

const body = document.body;
const docEl = document.documentElement;

const MathUtils = {
    lineEq: (y2, y1, x2, x1, currentVal) => {
        // y = mx + b 
        var m = (y2 - y1) / (x2 - x1), b = y1 - m * x1;
        return m * currentVal + b;
    },
    lerp: (a, b, n) =>  (1 - n) * a + n * b,
    distance: (x1, x2, y1, y2) => {
        var a = x1 - x2;
        var b = y1 - y2;
        return Math.hypot(a,b);
    }
};

let winsize;
const calcWinsize = () => winsize = {width: window.innerWidth, height: window.innerHeight};
calcWinsize();
window.addEventListener('resize', calcWinsize);

const getMousePos = (ev) => {
    let posx = 0;
    let posy = 0;
    if (!ev) ev = window.event;
    if (ev.pageX || ev.pageY) {
        posx = ev.pageX;
        posy = ev.pageY;
    }
    else if (ev.clientX || ev.clientY) 	{
        posx = ev.clientX + body.scrollLeft + docEl.scrollLeft;
        posy = ev.clientY + body.scrollTop + docEl.scrollTop;
    }
    return {x: posx, y: posy};
}

let mousePos = {x: winsize.width/2, y: winsize.height/2};
window.addEventListener('mousemove', ev => mousePos = getMousePos(ev));


const elem = document.querySelector('.content__text');
const textEl = elem.querySelector('span.content__text-inner');


const createBlotterText = () => {
    const text = new Blotter.Text(textEl.innerHTML, {
        family : "'reform_mmxx-3', serif",
        weight: 500,
        size: 500,
        paddingLeft: 20,
        paddingRight: 20,
        paddingTop: 200,
        paddingBottom: 20,
        fill : 'black',
    });
    elem.removeChild(textEl);

    const material = new Blotter.LiquidDistortMaterial();
    material.uniforms.uSpeed.value = 1;
    material.uniforms.uVolatility.value = 1;
    material.uniforms.uSeed.value = 0.1;
    const blotter = new Blotter(material, {texts: text});
    const scope = blotter.forText(text);
    scope.appendTo(elem);
    
    let lastMousePosition = {x: winsize.width/2, y: winsize.height/2};
    let volatility = 0;
    
    const render = () => {
        const docScrolls = {left : body.scrollLeft + docEl.scrollLeft, top : body.scrollTop + docEl.scrollTop};
        const relmousepos = {x : mousePos.x - docScrolls.left, y : mousePos.y - docScrolls.top };
        const mouseDistance = MathUtils.distance(lastMousePosition.x, relmousepos.x, lastMousePosition.y, relmousepos.y);
        
        volatility = MathUtils.lerp(volatility, Math.min(MathUtils.lineEq(0.9, 0, 50, 0, mouseDistance),0.9), 0.05);
        material.uniforms.uVolatility.value = volatility;
     
        lastMousePosition = {x: relmousepos.x, y: relmousepos.y};
        requestAnimationFrame(render);
    }
    requestAnimationFrame(render);
};


WebFont.load({
    custom: {
    families: ['reform_mmxx-3'],
    urls: ['http://www.re-form.dk/wp-content/uploads/2019/12/reform_mmxx-3.woff']
    },
    active: () => createBlotterText()
});

}

});
</script>

Many thanks for your time and help!

Richard · wrote on Nov 13, 2020, 4:38 AM

Dear @jensdan

window.laytheme.on("newpageshown", function(layoutObj, type, obj){
if(type == "page" && obj.id == 576, 568) {

Currently your code asks for page id - 576, 568 It works on page 576, however your second page which does not work has a page ID of 542 :

change the code above to the following and hope this solves your issue

window.laytheme.on("newpageshown", function(layoutObj, type, obj){
if(type == "page" && obj.id == 576, 542) {

Best wishes & have a wonderful day!
Richard

jensdan · wrote on Nov 15, 2020, 7:16 PM

@Richard-Keith said in paralax is not working after update:

542

Hi richard

Thank you for looking into it and for suggesting a solution!
I have tried changing the code as you suggested, unfortunately the paralax is still noget working on this page: http://www.re-form.dk/reform2018

Any other suggestions is greatly appreciated!

Thx
Jens

Richard · wrote on Nov 23, 2020, 12:12 AM

Dear @jensdan

So some steps of Debugging if you will:

Could you temporarily remove any custom JS / HTML and see if the parallax is working on your page '2018'
Just really need to isolate the problem to either Lay Theme Bug, or your Custom JS - I should have started with this, apologies

The problem in the console occurs with the line:

const textEl = elem.querySelector('span.content__text-inner');

Within the middle portion of you Custom JS , its not picking up a 'span.content_text-inner for that page.

Also just as a try can you give the 'Disable Ajax' a quick try and see if this helps:

Wordpress, Lay Theme and all the plugins are up to date and therefore in sync?

Just would be really good to isolate the issue first, if we can remove any custom additions and see if the parallax can operate in normal conditions :)

Best, let me know, sorry for the inconvenience if i have caused any - Have a wonderful day
Richard

Mas · wrote on Mar 10, 2024, 12:13 PM

Hello, I have just updated Laytheme and Parallax does not work anymore :/

PiotrM · wrote on Mar 10, 2024, 12:21 PM

same here,.. parallax is not working after recent lay theme update.

arminunruh · wrote on Mar 12, 2024, 5:55 PM

can u update again now? does it work now? sorry about that!

Mas · wrote on Mar 13, 2024, 10:40 AM

Thank you Armin!

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