How to write Hdr file?

[zhouhang95]

    let img = image::open("res/newport_loft.jpg").unwrap();
    img.save("newport_loft2.hdr").unwrap();

Then, I get this error:
thread 'main' panicked at src\main.rs:335:35:
called Result::unwrap() on an Err value: Unsupported(UnsupportedError { format: Unknown, kind: Format(Name("Hdr")) })

[fintelia]

At the moment you need to directly use HdrEncoder. Related: #2013

[zhouhang95]

Sorry, I'm not good at github workflow. I don't konw how to change this pr.

[zhouhang95]

    let enc = HdrEncoder::new(Vec::new());
    let data: Vec<Rgb<f32>> = panorama.pixels().cloned().collect();
    enc.encode(&data, panorama.width() as _, panorama.height() as _).unwrap();

Now, I can not read encoded data.

[fintelia]

You probably want to keep a copy of the Vec you're writing into:

let mut data = Vec::new();
let enc = HdrEncoder::new(&mut data);
...