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ParticleEffectForUGUI
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docs: add FAQ

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mob-sakai 2023-08-18 17:17:30 +09:00
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@ -246,6 +246,32 @@ uiParticle.Stop();
## Development Note
### FAQ: Why are my particle effects not displayed correctly?
If `ParticleSystem` alone displays particles correctly but `UIParticle` does not, please check the following points:
* [Shader Limitation](https://github.com/mob-sakai/ParticleEffectForUGUI#shader-limitation)
* Most cases can be solved by using `UI/Additive` or `UI/Default`.
* Particles are masked
* `UIParticle` is maskable.
* Set `Mask` or `RectMask2D` component properly.
* Particles are too small
* If particles are small enough, they will not appear on the screen.
* Increase the `Scale` value.
* If you don't want to change the apparent size depending on the resolution, try `Auto Scaling` option.
* Particles are too many
* No more than 65535 vertices can be displayed (for mesh combination limitations).
* Please set `Emission` module and `Max Particles` of ParticleSystem properly.
* Particles are emitted off-screen.
* When `Position Mode = Relative`, particles are emitted from scaled position of the ParticleSystem, not from the screen point of the ParticleSystem.
* Place the ParticleSystem in the proper position or try `Position Mode = Absolute`.
* Attaching `UIParticle` to the same object as `ParticleSystem`
* `Transform.localScale` will be overridden by `Auto Scaling` option.
* It is recommended to place `ParticleSystem` under `UIParticle`.
<br>
### Shader Limitation
The use of UI shaders is recommended.