Unable to Freely Draw Artboard to RivePanel Texture Instead of Using RiveWidget

[BlockRen]

Hello Rive team,

First of all, thank you for the excellent work on the latest version "rive 0.14.0-dev.8". The new rive_panel with its performance optimizations is particularly impressive and much appreciated.

I’m currently using the Flame engine in Flutter for game development. When using Factory.flutter as the rendering method, I can directly draw Rive content onto the Flutter canvas with the following code:

void render(Canvas canvas) {
  super.render(canvas);
  final renderer = rive.Renderer.make(canvas);
  artboard?.draw(renderer);
  renderer.dispose();
}

However, this approach has a limitation: it does not support "Vector Feathering", which is essential for achieving glow effects in my project. While switching to Factory.rive would resolve this issue and likely offer better performance, I’ve encountered another challenge.

The rive_panel and rive_widget are implemented as widgets, which makes it difficult to draw large amounts of content freely with custom transformations (e.g., position, scale, rotation) as easily as with direct canvas rendering. I would very much like to use rive_panel for its performance benefits, but I’m unsure how to directly and freely draw an Artboard onto the rive_panel's texture, rather than using rive_widget.

Is there a recommended way to achieve this? Any guidance or example would be greatly appreciated.

Thank you!

[HayesGordon]

You can definitely take inspiration from how the RivePanel and SharedTextureView is implemented.

But for the use case you're describing, you will be better off manually managing the painting to a single texture/painter, and then you will have full control over positioning/transforming artboards. See the example entry and the way to create a custom render texture painter.

Closing this issue as this is supported but let me know if you run into issues.