main.dart

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';

void main() {
  runApp(new Center(child: new Example()));
}

class Ancestor extends SingleChildRenderObjectWidget {
  const Ancestor({Widget child, Key key}): super(child: child, key: key);
  
  @override
  RenderObject createRenderObject(BuildContext context) {
    return new RenderAncestor();
  }
}

class RenderAncestor extends RenderProxyBox {
  @override
  bool get alwaysNeedsCompositing => true; 

  @override
  void paint(PaintingContext context, Offset offset) {
    context.pushLayer(new OffsetLayer(), super.paint, offset);
  }
}

class Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Transform(  // Transform widget
      transform: new Matrix4.identity()..setEntry(3, 0, 0.0003), // remove perspective x and it renders correctly
      alignment: FractionalOffset.center,
      child: new Ancestor(
        child: new Material(
          child: new Container(
            color: Colors.red,
            width: 200.0,
            height: 200.0,
          ),
        ),
      ),
    );
  }
}