glow wasm backend

[leviska]

I've seen your recent PR with glow backend, and it looks very nice!

But I really hoped that with glow there will be (at least some basic) support for glow wasm (web-sys) target also, but it seems, that glutin is required for glow.

I would really appreciate it if you'd made some basic support for wasm with glow.

As far as I understand, rendering side should be easily done, because glow is (kinda) similar on web and native sides.

Input is the harder problem, and I will be satisfied at least with just an ability to pass inputs yourself (and rendering done with glow). As I understand, I can't do it right now(?)

[emilk]

You should be able to just use egui_glow::Painter. You could potentially use egui_web for handling input to egui, and use egui_glow for the painting.

Try it!

@AlexApps99 may have some better ideas here.

[leviska]

Ooh, I'll try, big thanks :)

[emilk]

Related issue: #820

[AlexApps99]

At this point, egui_glow does not work with wasm, but support is very close.

Check out the issue above for more info, but in the mean time, you can use conditional compilation with egui_web.

[AlexApps99]

Have a look at #852, it seems to be an early work in progress, but it would certainly close this issue.

[leviska]

Thanks
I'm not in a hurry, so I'll wait for some unified solution, 852 looks very promising

[KentaTheBugMaker]

Let's try #868
Current test status

• OpenGL 4.6 (same as glium and glow)(on Ryzen 5 5500U iGPU)
• WebGL1 (same as web) (on servo)
• WebGL1+sRGB (same as web)(on webgl2 disabled firefox with angle and native GL)
• WebGL2 (same as web)(on firefox , edge,firefox android)

and report bugs.
https://github.com/t18b219k/egui.git

[KentaTheBugMaker]

let's close this issue

[emilk]

Closed by #868