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Low animation quality when rotating using Rive’s native renderer (works fine with Flutter renderer)

Open thize opened this issue 3 months ago • 1 comments

Description

When using a Rive animation inside a container (in my case, a cup object), the animation quality becomes extremely poor when the cup is moved or transformed. The issue only occurs when using the native Rive renderer — the animation looks sharp and smooth when rendered using Flutter’s built-in renderer.

I’ve attached two videos for comparison:

  • Video 1: Rive animation rendered with Flutter’s renderer (good quality)
  • Video 2: Rive animation rendered with Rive’s native renderer (blurry / low-quality result)

Steps To Reproduce

  1. Place a .riv animation inside a container widget.
  2. Move or transform the container (e.g., translate, scale, or rotate).
  3. Observe the animation quality degradation with the native renderer.
  4. Switch to Flutter’s renderer — the issue disappears.

Source .riv/.rev file

I can provide both .riv and .rev files privately if needed.

Expected behavior

The animation should maintain the same visual quality when the parent container is moved, regardless of whether it’s rendered via Flutter’s renderer or the native Rive renderer.

Screenshots / Videos

https://github.com/user-attachments/assets/87f9d509-18bd-4867-abd7-2bda20671b01

https://github.com/user-attachments/assets/151f30bf-3553-4291-9591-21954d460014

Device & Versions

  • Device: Windows / Android / iOS
  • Flutter Version: 3.35.6

thize avatar Oct 21 '25 15:10 thize