CODEWITHSUNDEEP
c++windowsopenglwindows-7gdi
paj7777
paj7777

Reputation: 311

OpenGL stereo in layered window

Is anybody aware of a way to enable OpenGL stereo while using a layered window in Windows 7?

Upvotes: 10

Views: 926

Answers (2)

bparker
bparker

Reputation: 809

OpenGL stereo uses the GL_BACK_LEFT and GL_BACK_RIGHT draw buffers, and you should only draw once to each buffer. You also need a Quadro card with quad-buffer stereo support to use this.

Upvotes: 1

Seth Kingsley
Seth Kingsley

Reputation: 452

I could be wrong, but I think the GL_{LEFT,RIGHT} are only for output devices that are actually stereoscopic, such as VR goggles, shutter glasses, or layered screens with multiple polarized displays. Assuming you aren’t using any of these things, you will probably need to make your window twice as wide and use glViewport() to draw both aspects of the scene side-by-side. I’m assuming that your rendering pass is already happening twice for GL_LEFT and GL_RIGHT buffers, so you should just substitute glViewport() calls that target either side of the window in the place of the glDrawBuffer() calls.

Upvotes: 1

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