glsl refraction getting mapped upside down

Question

I am implementing refraction in glsl. I am using the refract function provided in frag shader to get the desired effect. But the refraction I am getting, its upside down. I

Answer 1

If you're talking about the refractions on those spheres, I'm pretty sure what you've got is the correct result, it's supposed to be upside down. Due to the way the light refracts off the spherical surface the image you see in the sphere is reversed:

Real world example:

_{(source: physicscentral.com)}