Why Is My Transparency Shader Not Working I just installed the Released Candidate version of Blender and noticed that a couple of things are missing. Im using CYCLES as render engine.

First, I can no longer make the TRANSPARENCY SHADER to work properly. My goal is to KEYFRAME the FAC so that I can make the object disappear at a certain point. (Please see video:
https://www.youtube.com/watch?v=VAEdu0Qeuts&amp;feature=youtu.be) But as you can see, when Played around with the values of the FAC, it will create this weird shapes and not fully disappear.

Thanks
It looks to me that everything works normally, but you have a second material on those faces that doesn't turn transparent (and those faces just happen to form the observed weird shapes due to your mesh).

So to solve this you can either make all faces have the same material or have a transparency node and keyframes for each of those materials.

(If this answer does not work for you, please provide a .blend since other problems might show the same symptoms)

Happy Blending! :)