canvas transparency

vue-displacement-slideshow

Webgl image displacement transitions made simple. A Vue.js slideshow component working with Three.js and GSAP. It works with Vue3 and older versions (until 3.0.1) work with Vue2.

Demo

The canvas can be interactive as well by setting the isInteractive props to true. See the props section to find more.

Live demo

DEMO

Installation

# using yarn
yarn add vue-displacement-slideshow
# or using npm
npm i vue-displacement-slideshow

⚠️ If you are using this component with Vue2, you have to use this version: 3.0.1, as the ones that follow only support Vue3. You can install a particular version like this:

# using yarn
yarn add [email protected]
# or using npm
npm i [email protected]

Example

<template>
    <vue-displacement-slideshow
            :images="images"
            displacement="require('../assets/displacement.png')"
            :intensity="0.2"
            :speedIn="1.4"
            :speedOut="1.4"
            ease="expo.out"
            ref="slideshow" />
</template>

<script>
    import VueDisplacementSlideshow from "vue-displacement-slideshow";

    export default {
        components: {
            VueDisplacementSlideshow,
        },
        computed: {
            images() {
                return [
                    require("../assets/images/1.jpg"),
                    require("../assets/images/2.jpg"),
                    require("../assets/images/3.jpg")
                ];
            }
        },
        methods: {
            init() {
                //We loop through all our images by calling the 'next' method of our component every 2 seconds
                setInterval(() => {
                    this.$refs.slideshow.next();
                }, 2000);
            }
        },
        mounted() {
            this.init();
        }
    };
</script>

With Nuxt :

Just wrap the component in a client-only component like so :

<client-only>
    <vue-displacement-slideshow />
</client-only>

This component is heavily based on this library : https://github.com/robin-dela/hover-effect

Props

name	type	description	required	default value
images	`Array`	An array containing the paths of the images you wan to use	`true`	`[]`
displacement	`String`	The path of the displacement image	`true`
intensity	`Number`	The intensity of the displacement	`false`	`1`
speedIn	`Number`	The duration of the animation for the next image, in seconds	`false`	`1`
speedOut	`Number`	The duration of the animation for the previous image, in seconds	`false`	`1`
ease	`String`	The GSAP easing to use	`false`	`expo.inOut`
preserveAspectRatio	`Boolean`	Whether the images keep their aspect ratio (act as `background-size` : `cover` (`true`) or `contain` (`false`)	`false`	`true`
isInteractive	`Boolean`	Whether the canvas is interactive on mouse move	`false`	`false`
interactionFactor	`Number`	The factor of the interaction	`false`	`1`
interactionDuration	`Number`	The duration of the interaction	`false`	`1`
startAsTransparent	`Boolean`	Whether the canvas is initially transparent and the first transition goes to the first picture	`false`	`false`
angle	`Number`	The angle of the transition	`false`	`Math.PI / 4`

Methods

Name	Description	Params	Returns
next	Transition to the second image.		`void`
previous	Transition to the first image.		`void`
pause	Pause the current transition		`void`
play	Play the current paused animation		`void`
insertImage(path,index)	Insert an image at a given index	`path` : the path of the image `index` : the index of the inserted image, if not provided, the image will be inserted at the end of the array. It has the same behavior as the `splice` method (negative number allowed)	a Promise resolved when the image is loaded
insertTransparentTexture(index)	Insert a transparent texture at a given index	`index` : the index of the inserted image, it has the same behavior as the `insertImage` `index` parameter	`void`
removeImage(index)	Remove an image at a given index	`index` : the index of the image to remove (must be different from the current image index)	`void`
goTo(index)	Transition to a given image by its index	`index` : the index of the image to transition to	`void`

Events emitted

Name	Description
loaded	Fired when the component is ready
animationEnd	Fired when the transition is done.

Behavior

The first image of the array is displayed at first. When we call the next method while currently showing the last image, it will go to the first image. When we call the previous method while currently showing the first image, it will go to the last image.

The images are displayed as we would use background-size:cover in CSS.

If you set the prop startAsTransparent to true, then it adds a texture to your images array. If you want to remove it after, you can just call the removeImage method with 0 as the index parameter value.

Contributing

Contributions are welcome ! Follow the instructions in the contributing file

License

MIT

Support

If you find the component useful, you can support my open source work via my ko-fi page.

albancrepel / vue-displacement-slideshow Goto Github PK

vue-displacement-slideshow's Introduction

vue-displacement-slideshow

Demo

Live demo

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