Export render as image

[sunjay]

Really excited to get to use this crate on some projects!

Do you think it would be possible to add the ability to export the rendered image as a PNG file (with transparency)? This would involve rendering to an image rather than the screen.

This is useful for debugging, screenshots, and many other use cases. I tried looking around in the documentation and in the issue tracker but couldn't see anywhere that indicated if this was possible or not.

If it needs to be implemented and you provide some instructions to help get this started, I or someone else interested may be able to help out. :)

[kvark]

It could be as straightforward as Window::take_screenshot method. One would implement it based on gfx-rs example code: https://github.com/gfx-rs/gfx/blob/93de8916740a1075909cd4b7cd83f668fe454c99/examples/gamma/main.rs#L129-L164