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[Impeller] draw order optimizer has latent rendering error with bdfs. #155125

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jonahwilliams opened this issue Sep 12, 2024 · 0 comments
Open

[Impeller] draw order optimizer has latent rendering error with bdfs. #155125

jonahwilliams opened this issue Sep 12, 2024 · 0 comments
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e: impeller Impeller rendering backend issues and features requests P3 Issues that are less important to the Flutter project team-engine Owned by Engine team triaged-engine Triaged by Engine team

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@jonahwilliams
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Running the example app in #154046 (comment) , the draw order optimization causes rendering bugs. To get to the following UI

To create the crash:

Goto Dishes screen
Tap on the image presented (to open a new screen)
Try scrolling the list, this should almost immediately crash the app. At least on my device it does
For step 3, if you wait a few moments to allow the images to load and then scroll you may also notice the polygons before the crash

Note: this doesn't crash anymore but still renders incorrectly.

Working

image

Broken

image

The draw order optimization was indirectly reverted by switching from entity pass to exp canvas in flutter/engine#55047
@jonahwilliams jonahwilliams added e: impeller Impeller rendering backend issues and features requests team-engine Owned by Engine team labels Sep 12, 2024
@jonahwilliams jonahwilliams mentioned this issue Sep 12, 2024
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@jonahwilliams jonahwilliams added P3 Issues that are less important to the Flutter project triaged-engine Triaged by Engine team labels Sep 23, 2024
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e: impeller Impeller rendering backend issues and features requests P3 Issues that are less important to the Flutter project team-engine Owned by Engine team triaged-engine Triaged by Engine team
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