rval = kPsychSinkIsMSAACapable

Return a flag that you can pass to the ‘imagingmode’ parameter of
Screen(‘OpenWindow’) together with the ‘kPsychNeedFinalizedFBOSinks’
flag. If this kPsychSinkIsMSAACapable flag is given then the
OpenGL framebuffer objects which are created and attached as final
output image sinks due to the ‘kPsychNeedFinalizedFBOSinks’ flag will
be allowed to have GL_TEXTURE_2D_MULTISAMPLE textures as color attachments,
and thereby as final target of the output images. Iow., the sink can
handle multisampled textures.

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