For my latest Instagram filter, I wanted to include a glass refraction effect. I was really surprised to find out that there was no tutorials on how to do this out there. Only assets you need to pay for.

I took a few hours to create my own simplified version of a glass shader. Nothing fancy, but it does the job quite well. Here is a quick tutorial on how I did it.

A bit of Background:

If we look at a perfectly clear glass, the whole reason why we can see the object is because of Reflections and Refractions, in other words, how…