Emulator

Game Name?

The Legend of Zelda: Twilight Princess (GC), but it's perceivable on any more detailed game

Game ID? (right click the game in the game list, properties, info tab)

GZ2E01

MD5 Hash? (right click the game in the game list, properties, info tab, MD5 Hash: Compute)

41deff9b1fd2831f48fbfa2dd1054e4d

What's the problem? Describe what went wrong.

Well, this is probably a really stupid issue report, but I thought it was weird, so here it goes... I had just beaten Twilight Princess on my Wii, using a CRT TV and RCA cables, all "original", as it should be. Than I decided to give the game a similar look on Dolphin, because why not? Since this is an emulator, it should be able to output a similar image to that of the real thing, so, I've set my monitor resolution to 640x480, had internal res at native, had "24-bit color" disabled, and enabled "RealXFB". I cannot use any other "native aspects", because my system simply cannot handle it, like single core or EFB2RAM, but I guess I got close enough. I was really impressed by the looks, since it does give an almost nostalgic feel (it's not actually, since it's been like 24 hours since I've beaten the game on the console XD). Per-pixel lighting improves that even more, but I can't bare the slowdowns.

After booting the game, I immediately noticed a "square grid" on the trees. Going closer to the trees makes it disappear, but then I noticed it happened on other textures as well. I tried disabling XFB, and it was there as well, but raising the internal resolution, or setting to "Auto (integral) or (fractional)" fixes the grid. Since the internal res of the GCN and Wii is just slightly higher than 640x480, I thought it was weird that "integral" would look much nicer than native. It's also possible to see the grid at 800x600 and 1024x768 at native, but the squares are much smaller. On the less detailed games, it's almost impossible to see it, but it still happens. With "RealXFB", it's not fixed by raising the internal res, by the way (it does not actually differ much from native when raising it, although it gives slowdowns).

What steps will reproduce the problem?

1. Set a small fullscreen resolution for the monitor (640x480 or 800x600)
2. Set internal resolution to native, "RealXFB" makes it more prominent
3. Play any game with lots of detail

Which versions of Dolphin did you test on? Does using an older version of Dolphin solve your issue? If yes, which versions of Dolphin used to work?

I was using 5.0-1146, and testing on a middle to late 4.0 dev build has the same effect.

What are your PC specifications? (CPU, GPU, Operating System, more)

Windows 8.1 Pro 64bit
AMD Athlon II x2 240 2.8Ghz
5GB RAM
GeForce 9600GT 1GB

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)

It happens on either D3D11 or OGL. I also recorded a small video, at 640x480, native, without XFB, but I upscaled to 1080p, because of YouTube bitrate crap. It upscaled even more to 1440p, so it's even better to see the grid:

https://youtu.be/-E4uGSj_KTE

I do have a 1080p monitor, and my PC is capable of running most GCN/Wii games at 2x internal resolution, which makes the games prettier, but I was just testing out the "nativeness" of Dolphin.