Hi @Knightro63

While testing the MultiViews example, I noticed a few issues related to sizing and resizing:

1. Aspect distortion
   When wrapping MultiViews1 with a specific size, for example:

SizedBox(
  width: 300,
  height: 400,
  child: MultiViews1(controller: controller),
)

the cube is no longer rendered as a square — its proportions become distorted (see comparison in figures 1 and 2).

2. MultiViews2 visibility issue
   When MultiViews2’s ThreeJS instance is created without setting a fixed size, MultiViews1 will not render properly (see figure 3).

3. Suggestion: add public resize method
   Could the ThreeJS class expose a method to manually update the render size at runtime?
   Currently _fixedSize is private and resizing only happens on didChangeMetrics
   For multi-view layouts (e.g., resizable split views), rebuilding the whole view every time the user drags to resize results in poor UX.
   A method like this would be very helpful:
   threeJs.updateSize(Size newSize);
   allowing smoother layout changes without destroying and recreating the renderer.