mob-sakai/ParticleEffectForUGUI

Is custom simulation space broken?

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#293 创建于 2024年1月30日

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 (2 评论) (0 反应) (1 负责人)C# (3,441 star) (524 fork)batch import
bughelp wanted

描述

I am updating from 3.3.9, and since then the behaviour of custom simulation space seems to have changed. I've got a particle effect inside a scroll rect with simulation space set to custom. When I move the scrollrect, I expect particles to just move with it, preserving their shape, but instead they move up and down way too far. It looks like this is a bug, or maybe custom simulation space is not supported in the current version?

Expected behaviour: particles keep moving up and down in this sin curve like pattern when I scroll

image

Observed behaviour: particles move all over the screen.

image

Also, scene preview breaks

image

I have modified the included demo scene to show this behaviour. To reproduce, open the scene and scroll up and down.

CustomSimulationSpaceBehaviourExample.zip

贡献者指南

技术栈
csharp
领域
frontend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Unity basicsC#Particle System
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
40
研究方向
Investigate the custom simulation space implementation in ParticleEffectForUGUI, focusing on how it interacts with ScrollRect. Review the particle position update logic in the source files, and examine the provided reproduction scene to identify the regression. Check for any changes in Unity's API between versions 3.3.9 and later that might affect custom simulation space behavior.