Exporting PNG images from O3DVisualizer in higher dpi

[SamTov]

Checklist

• [X] I have searched for similar issues.
• [X] For Python issues, I have tested with the latest development wheel.
• [X] I have checked the release documentation and the latest documentation (for master branch).

My Question

I would like to export a PNG based on a current scene using the O3DVisualizer. I call the method:

vis.export_current_image

But the resolution is quite bad. Can I set the DPI of the resulting image somewhere?