Is it possible output HALFs to a buffer using OpenGL's transform feedback? I've been trying it for a while without success. I can't find an example on how to do it. My code works with floats, but I can't make it work with halfs, using packHalf2x16 on the vertex shader.
I've ended up coding my very own sluggish packHalf2x16 and everything's working. So it's either a bug or I don't know how to properly use GLSL extensions. Shouldn't just adding "#extension GL_ARB_shading_language_packing : require" make it all work?