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feat(demos): blend #39

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42bf340
feat(demos): blend
vltansky Aug 21, 2024
c6b373e
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vltansky Aug 21, 2024
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28 changes: 28 additions & 0 deletions demo/blend.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
import { Kampos, effects } from '../index.js';

const media1 = document.querySelector('#video3');
const media2 = document.querySelector('#video4');
const target = document.querySelector('#target');

// create the effects/transitions we need
const blend = effects.blend({
mode: 'screen',
});

// make sure videos are loaded and playing
prepareVideos([media1, media2]).then(() => {
const width = media1.videoWidth;
const height = media1.videoHeight;

blend.image = media2;
// it's a video so update on every frame
blend.textures[0].update = true;

// init kampos
const instance = new Kampos({ target, effects: [blend] });

// set media source
instance.setSource({ media: media1, width, height });
// start kampos
instance.play();
});
10 changes: 9 additions & 1 deletion demo/demo.js
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ function startDemo(script, ids) {
updatePreview(
preview,
doc.getValue(),
video ? video.innerHTML : '',
video ? video.innerHTML : ''
);

refresh.addEventListener('click', update);
Expand Down Expand Up @@ -154,6 +154,14 @@ const sectionScripts = {
refresh: 'refresh9',
});
},
section10() {
startDemo('./blend.js', {
code: 'code10',
preview: 'preview',
video: 'videos2',
refresh: 'refresh10',
});
},
};

insertSection('section7');
16 changes: 15 additions & 1 deletion demo/index.html
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<!doctype html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
Expand Down Expand Up @@ -313,6 +313,17 @@
</section>
</template>

<template id="section10">
<section id="blend">
<div class="code-container">
<button class="refresh-button" id="refresh10">
Refresh
</button>
<textarea id="code10"></textarea>
</div>
</section>
</template>

<nav>
<ul>
<li>
Expand Down Expand Up @@ -360,6 +371,9 @@
>Luminance Mask</a
>
</li>
<li>
<a href="#section10" data-section-id="section10">Blend</a>
</li>
</ul>
</nav>
<main>
Expand Down
77 changes: 44 additions & 33 deletions demo/index.js
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
(function () {
'use strict';

function updatePreview (iframe, example, videos) {
iframe.setAttribute('srcdoc', getIFrameHTML({example, videos}));
function updatePreview(iframe, example, videos) {
iframe.setAttribute('srcdoc', getIFrameHTML({ example, videos }));
}

function getIFrameHTML ({example, videos}) {
function getIFrameHTML({ example, videos }) {
return `<!DOCTYPE html>
<html>
<head>
Expand All @@ -30,7 +30,7 @@

window.updatePreview = updatePreview;

function insertSection (id) {
function insertSection(id) {
const section = document.querySelector(`#${id}`);
const main = document.querySelector('main');

Expand All @@ -39,34 +39,37 @@
sectionScripts[id]();
}

document.querySelector('nav')
.addEventListener('click', e => {
const id = e.target.dataset.sectionId;
insertSection(id);
});
document.querySelector('nav').addEventListener('click', (e) => {
const id = e.target.dataset.sectionId;
insertSection(id);
});

document.querySelector('#open-code')
.addEventListener('click', () => {
document.querySelector('#section-wrapper').classList.toggle('open');
});
document.querySelector('#open-code').addEventListener('click', () => {
document.querySelector('#section-wrapper').classList.toggle('open');
});

function startDemo (script, ids) {
function startDemo(script, ids) {
const code = document.querySelector(`#${ids.code}`);
const preview = document.querySelector(`#${ids.preview}`);
const video = document.querySelector(`#${ids.video}`);
const refresh = document.querySelector(`#${ids.refresh}`);

fetch(script)
.then(resp => resp.text())
.then(text => {
.then((resp) => resp.text())
.then((text) => {
code.value = text;
const doc = CodeMirror.fromTextArea(code, {
value: text,
lineNumbers: true,
theme: 'dracula'
theme: 'dracula',
});

const update = () => updatePreview(preview, doc.getValue(), video ? video.innerHTML : '');
const update = () =>
updatePreview(
preview,
doc.getValue(),
video ? video.innerHTML : ''
);

refresh.addEventListener('click', update);

Expand All @@ -75,47 +78,47 @@
}

const sectionScripts = {
section1 () {
section1() {
startDemo('./turbulence.js', {
code: 'code1',
preview: 'preview',
video: 'videos1',
refresh: 'refresh1'
refresh: 'refresh1',
});
},

section2 () {
section2() {
startDemo('./hue-fade.js', {
code: 'code2',
preview: 'preview',
video: 'videos2',
refresh: 'refresh2'
refresh: 'refresh2',
});
},

section3 () {
section3() {
startDemo('./disp.js', {
code: 'code3',
preview: 'preview',
video: 'videos3',
refresh: 'refresh3'
refresh: 'refresh3',
});
},

section4 () {
section4() {
startDemo('./duotone.js', {
code: 'code4',
preview: 'preview',
video: 'videos4',
refresh: 'refresh4'
refresh: 'refresh4',
});
},

section5 () {
section5() {
startDemo('./cellular-noise.js', {
code: 'code5',
preview: 'preview',
refresh: 'refresh5'
refresh: 'refresh5',
});
},

Expand All @@ -124,7 +127,7 @@
code: 'code6',
preview: 'preview',
video: 'videos2',
refresh: 'refresh6'
refresh: 'refresh6',
});
},

Expand All @@ -133,7 +136,7 @@
code: 'code7',
preview: 'preview',
video: 'none',
refresh: 'refresh7'
refresh: 'refresh7',
});
},

Expand All @@ -142,7 +145,7 @@
code: 'code8',
preview: 'preview',
video: 'videos5',
refresh: 'refresh8'
refresh: 'refresh8',
});
},

Expand All @@ -151,9 +154,17 @@
code: 'code9',
preview: 'preview',
video: 'videos2',
refresh: 'refresh9'
refresh: 'refresh9',
});
}
},
section10() {
startDemo('./blend.js', {
code: 'code10',
preview: 'preview',
video: 'videos2',
refresh: 'refresh10',
});
},
};

insertSection('section7');
Expand Down
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