229 lines
9.2 KiB
Markdown
229 lines
9.2 KiB
Markdown
ParticleEffectForUGUI
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===
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This plugin provide a component to render particle effect for uGUI in Unity 2018.2 or later.
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The particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.
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[](https://openupm.com/packages/com.coffee.ui-particle/)
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[](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
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[](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
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[](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/upm/LICENSE.txt)
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[](http://makeapullrequest.com)
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[](https://twitter.com/intent/follow?screen_name=mob_sakai)
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<< [Description](#Description) | [Demo](#demo) | [Installation](#installation) | [Usage](#usage) | [Development Note](#development-note) | [Change log](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/upm/CHANGELOG.md) >>
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<br><br><br><br>
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## Description
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This plugin uses new APIs `MeshBake/MashTrailBake` (added with Unity 2018.2) to render particles by CanvasRenderer.
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You can mask and sort particles for uGUI without Camera, RenderTexture, Canvas.
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Compares this "Baking mesh" approach with the conventional approach:
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(This scene is included in the package.)
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|Approach|Good|Bad|Screenshot|
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|Baking mesh<br>**\(UIParticle\)**|Rendered as is.<br>Maskable.<br>Sortable.<br>Less objects.|**Requires Unity 2018.2 or later.**<br>Requires UI shaders to use Mask.|<img src="https://user-images.githubusercontent.com/12690315/41765089-0302b9a2-763e-11e8-88b3-b6ffa306bbb0.gif" width="500px">|
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|Do nothing|Rendered as is.|**Looks like a glitch.**<br>Not maskable.<br>Not sortable.|<img src="https://user-images.githubusercontent.com/12690315/41765090-0329828a-763e-11e8-8d8a-f1d269ea3bc7.gif" width="500px">|
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|Convert particle to UIVertex<br>[\(UIParticleSystem\)](https://forum.unity.com/threads/free-script-particle-systems-in-ui-screen-space-overlay.406862/)|Maskable.<br>Sortable.<br>Less objects.|**Adjustment is difficult.**<br>Requires UI shaders.<br>Difficult to adjust scale.<br>Force hierarchy scalling.<br>Simulation results are incorrect.<br>Trail, rotation of transform, time scaling are not supported.<br>Generate heavy GC every frame.|<img src="https://user-images.githubusercontent.com/12690315/41765088-02deb9c6-763e-11e8-98d0-9e0c1766ef39.gif" width="500px">|
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|Use Canvas to sort|Rendered as is.<br>Sortable.|**You must to manage sorting orders.**<br>Not maskable.<br>More batches.|<img src="https://user-images.githubusercontent.com/12690315/41765087-02b866ea-763e-11e8-8c33-081c9ad852f8.gif" width="500px">|
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|Use RenderTexture|Maskable.<br>Sortable.|**Requires Camera and RenderTexture.**<br>Difficult to adjust position and size.<br>Quality depends on the RenderTexture's setting.|<img src="https://user-images.githubusercontent.com/12690315/41765085-0291b3e2-763e-11e8-827b-72e5ee9bc556.gif" width="500px">|
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#### Features
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* Easy to use: the package is out-of-the-box
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* Sort particle effects with UI
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* No Camera, RenderTexture or Canvas are required
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* Masking with Mask or RectMask2D
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* Support Trail module
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* Change alpha with CanvasGroup
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* No heavy allocation every frame
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* Support overlay, camera space and world space
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* Support changing material property with AnimationClip (AnimatableProperty)
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<br><br><br><br>
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## Demo
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* [WebGL Demo](http://mob-sakai.github.io/ParticleEffectForUGUI)
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* [WebGL Demo (Cartoon FX & War FX)](https://mob-sakai.github.io/Demos/ParticleEffectForUGUI_CFX)
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* [Cartoon FX Free][CFX] & [War FX][WFX] (by [Jean Moreno (JMO)][JMO]) with UIParticle
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[CFX]: https://assetstore.unity.com/packages/vfx/particles/cartoon-fx-free-109565
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[WFX]: https://assetstore.unity.com/packages/vfx/particles/war-fx-5669
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[JMO]: https://assetstore.unity.com/publishers/1669
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<br><br><br><br>
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## Installation
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### Requirement
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* Unity 2018.2 or later
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### Using OpenUPM
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This package is available on [OpenUPM](https://openupm.com).
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You can install it via [openupm-cli](https://github.com/openupm/openupm-cli).
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```
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openupm add com.coffee.ui-particle
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```
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### Using Git
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Find the manifest.json file in the Packages folder of your project and edit it to look like this:
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```js
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{
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"dependencies": {
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"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
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...
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},
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}
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```
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To update the package, change suffix `#{version}` to the target version.
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* e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#3.0.0",`
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Or, use [UpmGitExtension](https://github.com/mob-sakai/UpmGitExtension) to install and update the package.
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### For Unity 2018.2
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Unity 2018.2 supports embedded packages.
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1. Download a source code zip file from [Releases](https://github.com/mob-sakai/ParticleEffectForUGUI/releases) page
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2. Extract it
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3. Import it under `Packages` directory in your Unity project
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<br><br><br><br>
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## How to play demo
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### For Unity 2019.1 or later
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1. Open `Package Manager` window
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2. Select `UI Particle` package in package list
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3. Click `Import Sample` button
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4. The demo project is imported into `Assets/Samples/UI Particle/{version}/Demo`
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5. Open `UIParticle_Demo` scene and play it
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### For Unity 2018.4 or earlier
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1. Select `Assets/Samples/UI Particle Demo` from menu
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2. The demo project is imported into `Assets/Samples/UI Particle/{version}/Demo`
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3. Open `UIParticle_Demo` scene and play it
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<br><br><br><br>
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## Usage
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### Basically usage
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1. Select `Game Object/UI/ParticleSystem` to create UIParticle.
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2. (Option) If you want to mask particles, set **a UI shader** such as `UI/UIAdditive` to material for ParticleSystem.
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3. Adjust the Scale property to change the size of the effect.
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### With VFX assets
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1. Select `Game Object/UI/ParticleSystem (Empty)` to create UIParticle.
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2. Drag & drop VFX asset on UIParticle.
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3. Click `Refresh` to setup.
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4. Adjust the Scale property to change the size of the effect.
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<br><br><br><br>
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## Development Note
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### Animatable material property
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Animation clips can change the material properties of the Renderer, such as ParticleSystemRenderer.
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It uses MaterialPropertyBlock so it does not create new material instances.
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Using material properties, you can change UV animation, scale and color etc.
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Well, there is a component called CanvasRenderer.
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It is used by all Graphic components for UI (Text, Image, Raw Image, etc.) including UIParticle.
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However, It is **NOT** a Renderer.
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Therefore, in UIParticle, changing ParticleSystemRenderer's MaterialPropertyBlock by animation clip is ignored.
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To prevent this, Use "Animatable Material Property".
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"Animatable Material Property" gets the necessary properties from ParticleSystemRenderer's MaterialPropertyBlock and sets them to the CanvasRenderer's material.
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<br><br><br><br>
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## Contributing
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### Issues
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Issues are very valuable to this project.
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- Ideas are a valuable source of contributions others can make
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- Problems show where this project is lacking
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- With a question you show where contributors can improve the user experience
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### Pull Requests
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Pull requests are, a great way to get your ideas into this repository.
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See [CONTRIBUTING.md](/../../blob/develop/CONTRIBUTING.md).
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### Support
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This is an open source project that I am developing in my spare time.
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If you like it, please support me.
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With your support, I can spend more time on development. :)
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[](https://www.patreon.com/join/mob_sakai?)
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[](https://github.com/users/mob-sakai/sponsorship)
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<br><br><br><br>
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## License
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* MIT
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## Author
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[mob-sakai](https://github.com/mob-sakai)
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[](https://twitter.com/intent/follow?screen_name=mob_sakai)
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## See Also
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* GitHub page : https://github.com/mob-sakai/ParticleEffectForUGUI
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* Releases : https://github.com/mob-sakai/ParticleEffectForUGUI/releases
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* Issue tracker : https://github.com/mob-sakai/ParticleEffectForUGUI/issues
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* Current project : https://github.com/mob-sakai/ParticleEffectForUGUI/projects/1
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* Change log : https://github.com/mob-sakai/ParticleEffectForUGUI/blob/upm/CHANGELOG.md
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