It's been no secret that a lot of work has been done on the internals of the emulator in preparation for a huge addition to Dolphin's enhancements. Shaders have been retooled, backends reorganized, and tons of side work has been done to prepare the emulator for this moment. In the same vein as increasing the internal resolution, we're proud to announce support for Stereoscopic 3D.

Long-time users may remember this feature from way back when in the form of anaglyph 3D and NVIDIA 3D support. They will also remember the features not working very well, causing tons of issues, and generally not being worth the trouble. While those implementations may have been cool for the time, they lacked key elements.

1) NVIDIA 3D support was handled by the driver, and thusly couldn't adjust to some of the more particular needs of Dolphin.

2) Anaglyph 3D takes out a lot of the color and clarity of playing these games. Most users would choose crystal clear HD over washed out 3D.

3) 3D wasn't as well understood then as it is now. The old implementation didn't provide very good depth in D3D9, and it provided absolutely no depth in OpenGL!

4) The old anaglyph/stereo 3D options cut the framerate in half; splitting the frames for each eye. Turning on 3D essentially meant having frame-skipping on.

more details HERE