I translated Madoka's line in panel 3 as "not having any 3D effects", but the line more literally says "the movie doesn't jump out" or "the movie doesn't pop out". If anyone has a better sounding translation than mine, feel free to replace it.

The question is, rather, why Homu and Mami are wearing different kinds of (supposedly) 3D glasses.

SdCdS said:
The question is, rather, why Homu and Mami are wearing different kinds of (supposedly) 3D glasses.

I think it may be a play on how Mami uses old-fashioned muskets in her attacks (70's era red/blue 3D glasses) whereas Homura uses modern firearms and explosives (modern polarized lens 3D glasses).

Ya, 3D glasses stopped being red/blue plastic lenses a long time ago.

That's more clever than what I thought the joke was supposed to be.

Tetsamaru said:
Ya, 3D glasses stopped being red/blue plastic lenses a long time ago.

Define "A long time ago". Because I last went to the movies a decade ago and they were red/blue.

webspiderspinner said:
Define "A long time ago". Because I last went to the movies a decade ago and they were red/blue.

Given how fast tech moves these days, that's ancient...
I remember cyan-red anaglyph movies from the nineties, then there was a big slump until Avatar started the whole thing up again with stereoscopy delivered by polarized glasses, and suddenly EVERYTHING was 3D, including computer screens with stereoscopy via LCD shutter glasses.

Tetsamaru said:
Ya, 3D glasses stopped being red/blue plastic lenses a long time ago.

No they didn't. Minecraft still has an anaglyph 3D option.

ignite_water said:
No they didn't. Minecraft still has an anaglyph 3D option.

Anaglyph is relatively easy to render in OpenGL (by extension, JOGL and lwjgl).