render method

void render(Canvas canvas, Size size, VREngine engine)

Implementation

void render(Canvas canvas, Size size, VREngine engine) {
  if (!enabled) return;

  final lines = <String>[];

  if (showFps) {
    lines.add('FPS: ${engine.fps.toStringAsFixed(1)}');
    lines.add('Frame: ${engine.frameTimeMs.toStringAsFixed(1)}ms');
  }

  if (showNodeCount) {
    lines.add('Rendered: ${engine.renderedCount}');
  }

  if (showCullingStats) {
    lines.add('Culled: ${engine.culledCount}');
  }

  if (showCameraInfo) {
    final pos = engine.cameraRig.position;
    lines.add(
      'Pos: ${pos.x.toStringAsFixed(1)}, ${pos.y.toStringAsFixed(1)}, ${pos.z.toStringAsFixed(1)}',
    );
  }

  // Render in top-left corner
  const textStyle = TextStyle(
    color: Color(0xCC00FF00),
    fontSize: 10,
    fontFamily: 'monospace',
  );

  double y = 8;
  for (final line in lines) {
    final painter = TextPainter(
      text: TextSpan(text: line, style: textStyle),
      textDirection: TextDirection.ltr,
    )..layout();

    // Background
    canvas.drawRect(
      Rect.fromLTWH(4, y - 1, painter.width + 8, painter.height + 2),
      Paint()..color = const Color(0x80000000),
    );

    painter.paint(canvas, Offset(8, y));
    y += painter.height + 4;
  }
}