Improve blurred content of embedded windows

[scgm0]

Helps: #54030
Helps: #95387

I honestly don't know if I'm doing it the right way, but the issue seems to be forgotten and after a flurry of attempts I'm getting good results.
before:

after:

example:
embedded-window.zip

[hsvfan-jan]

In the screenshot, the circles of Test2 and Test3 seem to have become an octagon (the newly introduced white outline probably making it a full circle I'd assume)

[scgm0]

In the screenshot, the circles of Test2 and Test3 seem to have become an octagon (the newly introduced white outline probably making it a full circle I'd assume)

It seems to be a problem caused by viewport_set_global_canvas_transform. I don’t know where the specific problem is.

[scgm0]

In the screenshot, the circles of Test2 and Test3 seem to have become an octagon (the newly introduced white outline probably making it a full circle I'd assume)

When I manually assign the radio_unchecked icon in the theme (radio_unchecked.svg was copied from godot), there is no white border around the icon, so maybe the problem is related to the theme cache?

[scgm0]

The problem of viewport_set_global_canvas_transform should not be within the scope of this PR. What needs to be discussed now is whether the solution of this PR is qualified and whether there are any side effects.

[Summersay415]

Tested locally, works fine. It doesn't remove all blurriness, but decreases it a lot.
Before:

After:

[scgm0]

Tested locally, works fine. It doesn't remove all blurriness, but decreases it a lot. Before: After:

Have you enabled the font msdf?

[Summersay415]

No

[scgm0]

No

Give it a try?

[eldidou]

Hello, It seems that this fix solves #95387, with no side-effect seen so far.

[scgm0]

Hello, It seems that this fix solves #95387, with no side-effect seen so far.

That's great if there's no problem.

[timothyqiu]

Tested locally and it greatly reduced blurriness 👍

[scgm0]

Just wondering if there is something wrong with having this pr so it hasn't been merged yet?

[akien-mga]

Just wondering if there is something wrong with having this pr so it hasn't been merged yet?

There's nothing wrong a priori, but it needs reviews from maintainers familiar with the Viewport and Window code (such as @bruvzg or @Sauermann).

[bruvzg]

Code seems fine, will fully check it tomorrow.

[akien-mga]

Thanks!