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Web端的相机ClearFlags设置为DONT CLEAR或DEPTH ONLY，画面都会被强制清屏 #18088

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GengineJS opened this issue Dec 27, 2024 · 0 comments
Open
9 of 17 tasks

Web端的相机ClearFlags设置为DONT CLEAR或DEPTH ONLY，画面都会被强制清屏 #18088

GengineJS opened this issue Dec 27, 2024 · 0 comments
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Cocos Creator version

3.x

System information

所有WebGL相关平台

Issue description

如下图，设置为了DONT_CLEAR或DEPTH_ONLY：
image

但是预览之后相机还是会被每帧清屏，下图是运动的物体:

image

image

理论上是会产生重影的，类似这样：

企业微信截图_38b84af3-2f55-4cb5-a7bc-8ce60be8ea56

抓帧之类的是没什么问题的，后面发现是preserveDrawingBuffer设置为false了，设置为true是能重现DONT_CLEAR的效果的。

image

引擎对这个属性是有注释的，说是为了性能：

企业微信截图_9ad46123-45a1-4022-aa0e-b7e2acce728c

是否需要重新为preserveDrawingBuffer设置为true？

【必填】测试环境

  • Android
  • iOS
  • HarmonyOS Next
  • Web / WebView
  • 微信 小游戏
  • OPPO 小游戏
  • vivo 小游戏
  • 华为 快游戏
  • 小米 快游戏
  • 字节 小游戏
  • 淘宝 小程序创意互动
  • 淘宝 小游戏
  • 支付宝 小游戏
  • 咪咕
  • Windows
  • Mac
  • Google Play

Relevant error log output

No response

Steps to reproduce

看描述

Minimal reproduction project

No response
@GengineJS GengineJS added Bug Needs Triage Needs to be assigned by the team labels Dec 27, 2024
@GengineJS GengineJS self-assigned this Dec 27, 2024
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