Dark image in egui app

[anti-social]

When rendering tiles in egui app I see that images are darker than they are. It looks nice with OSM but too dark when rendering satellite maps. I checked cached tiles and they are not shadowed. Web-example also has the same problem. I tried render_to_file example and I see that output image looks like original OSM.

I could not find any settings that are responsible for brightness. Is it possible to somehow show original tile without shadowing?

Original tile https://www.openstreetmap.org/#map=8/37.165/126.623:

Rendered by https://maximkaaa.github.io/galileo/web_examples/raster_tiles/

[anti-social]

I found out that replacing this line with:

format: TextureFormat::Rgba8Unorm,

fixes the problem.

[anti-social]

Maybe it should be an option?

[Maximkaaa]

Yeah, this was not done intentionally. I actually wondered myself, why OSM looks like that, but I assumed they changed styling for better contrast or something. Turns out it was just my mistake. I've fixed it in #324 . Thank for noting this.

[anti-social]

With this change render_to_file example produces too bright image. So possibly we should be able to specify the format.

[Maximkaaa]

I missed a couple of places, where srgb was set, that's why rendering to file worked wrong. Fixed again. As to weather we should provide an option for this. This might be worth it, but needs some research and consideration. First, I don't think any of tile services encode tiles as srgb, that would be a little unexpected. But if there are such services, we definitely can add an option to the tile layer. For the output format, it might be an option of the renderer. But probably it would be easier to just use new_with_device_and_surface method if customizations of the target surface are needed. By default we want Galileo to render layers exactly the same way as they are rendered natively. So I checked that after the new fix both app and to file examples render OSM with the same colors as original tiles are.

[anti-social]

Thanks. Now satellite maps looks fine. TBH I slightly miss dark OSM maps, they looked cozy)))