Editing draw_resolution_scale_(x/y) doesn't seem to resize lines?

[ktg5]

Validation

• I've read the FAQ.
• The Xenia build used is from the master branch (not MLBS/AlexVS/Canary/pull requests, etc.)
• This issue isn't for tech support (help with Xenia).
• If this issue occurs in a specific game, I've done analysis to locate the faulty subsystem of the emulator and a potential reason in it.
• I've checked if this issue hasn't already been reported.
• My device meets the minimum requirements: https://github.com/xenia-project/xenia/wiki/Quickstart#system-requirements
• (If building) I have read the building doc: https://github.com/xenia-project/xenia/blob/master/docs/building.md

Describe what's going wrong

(I'm unsure if "outlines" is the correct wording throughout here, apologizes)
Changing the value on draw_resolution_scale_(x/y) doesn't change the size of the outlines in games.
For example, I've loaded up two games, Meteos Wars & Ikaruga (great Xbox Arcade titles) to show that this isn't just one game doing this. I've taken screenshots of each game two times, each with and without draw_resolution_scale_(x/y) being changed.

Meteos Wars:
draw_resolution_scale set to 1

draw_resolution_scale set to 3

Ikaruga:
draw_resolution_scale set to 1

draw_resolution_scale set to 3

The glitched outlines may look different in both games because both menus use outline sizes that ain't the same
This also might be an issue with Direct3D 12, but the other API I've tested, Vulkan, doesn't seem to do anything with draw_resolution_scale_(x/y) at all, only rendering at 1x no matter what value.

Describe what should happen

Outlines should resize with the current draw_resolution_scale_(x/y) set, making games look a little bit better with resolution scaling.

If applicable, provide a callstack here, especially for crashes

No response

If applicable, upload a logfile and link it here

I've provided the logs for my tests on Meteos Wars only.
draw_resolution_scale set to 1 log
draw_resolution_scale set to 3 log

[Triang3l]

Custom line widths exist in Vulkan (though not used in Xenia currently), but in Direct3D 12 the configuration for rasterization of lines is pretty limited — overall for now Xenia doesn't even use anything like anti-aliased lines, even though it may be possible that they exist in some form on the Xbox 360, but there's definitely no line width configuration in Direct3D 12 unfortunately.

Ideally though for wide lines we should be using a geometry shader, but lines are a pretty rarely used feature overall (though Halo 3 also has them on the loading screen), and they haven't been taken into consideration much so far — especially with regard to resolution scaling, which is overall a low-priority dirty hack. Maybe at some point we'll add such an option though.

[ktg5]

Apologies for returning to this dead thread; a possible temporary fix could be literally doubling / tripling the lines (or geometry shader) with a bit of position offset depending on the whatever the line scale is? Unsure how that would do performance-wise.