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If the video is hideous.
*DeSmuME's OpenGL 3D mode actually supports '''Multisampling Anti-Aliasing(MSAA) ''' (and the code is complete and already present), but for some reason, it's not an option in the GUI and is off by default. Turning it on helps the serrated edges of ultra low-res DS polygons and lines smooth out, appear to wobble less during movement, and retain their shape better when viewed from distance.
**All that needs to be done is download the [http://sourceforge.net/p/desmume/code/HEAD/tree/trunk/ latest snapshot], extract it, open desmume\src\windows\DeSmuME_2012.sln in Visual Studio, search NDSSystem.h for the one instance of 'GFX3D_Renderer_Multisample(false)', change false to true, and rebuild for the exe. Make sure to change the target from Debug Win32 to Release x64. Actually Windows version of since Desmume SVN r5032 and newer has GUI option for multisampling antialiasing in 3D settings and OSX version had GUI option for multisampling antialiasing for over a year since release 0.9.9.
*The only other thing you can do is filter it. Make sure '''OpenGL''' and '''Filter''' are checked under '''Display Method'''.
*Yes, filter it. Whether that is simple Nearest 2x or some pixel art scaling filter like HQ4x or xBRZ is up to you.
