Is it possible to use create a screenshot using render target along with capturing FullscreenUI?

I think I am semi-close. I couldn’t get the shader material to work, so I attempted to recreate it in the nme.

Babylon.js Node Material Editor Some work needs to be done as I think the image is upside down and rotated wrong, but this shader stuff is new to me.

Anyways, I generated the code and copy-pasted into here, but am getting an error.

Unable to compile because Build of NodeMaterial failed: input right from block Multiply[MultiplyBlock] is not connected and is not optional.

Odd, because both inputs are declared.