EGP draws only in top left quadrant

[Denneisk]

This issue is created to track this bug that I cannot replicate and don't understand the cause of. I'm hoping someone else can help me with this.

Description
EGP screens draw in the top left quadrant, half the of the size of the screen. They seem to work normally besides that.

To Reproduce
?

Screenshots

[thegrb93]

Next time you see it happen, see if you can find the render target in mat_texture_list and see if its rendering like that in the rendertarget.

It might be that the render target's resolution is 2x what the EGP needs. I think I remember someone changing how rendertargets are created and stored while ago.

[Denneisk]

Next time you see it happen, see if you can find the render target in mat_texture_list and see if its rendering like that in the rendertarget.

It might be that the render target's resolution is 2x what the EGP needs. I think I remember someone changing how rendertargets are created and stored while ago.

Well, issue is that I haven't actually experienced it myself, but a notable amount of users have reported it now. I remember that change with the RTs but I thought it didn't make sense for this to happen from that.

[Denneisk]

Wonder if somewhere in the client it's trying to reset the screen to 512 resolution.

[Denneisk]

Managed to visually reproduce it by setting the last arguments of this line to 0.
https://github.com/wiremod/wire/blob/master/lua/entities/gmod_wire_egp/cl_init.lua#L46
Not sure why the UV would reset. Is it possible the upvalues could get GC'd? Some sort of memory conflict?
Noticed in the second pic that it doesn't draw twice, it's just failing to clear the previous screen.
GPU changing after initialization?