Why won't my output show up in the background?

First of all, are we allowed to upload TD files for troubleshooting help? If not, then please delete this.

I’m following a tutorial video, in which he has his output displayed as his background, so he can see what’s happening. This preview is visible immediately after he finishes the code in his splat.frag file, which is synched to a GLSL operator. I’ve followed his instructions to the letter, and I don’t get the large preview window at all, aside from the tiny preview on the operators themselves.

I have no idea what the problem could be, except that I notice in my splat.frag file, (copied directly from his) TDOutputSwizzle isn’t color-coded. I have no idea if that’s related to this–maybe it means it’s not recognized syntax on mine, for some reason. I’m wondering if anyone could possibly take a look at my file and see why I don’t have the preview window showing up in the background. I will include the link to a dropbox where I have my TD file in progress and the splat.frag file, which is referenced by “colorGLSL” and has sync to file checked on. If there is a problem accessing it, please let me know!

Also, I will include the tutorial. The bit I’m talking about where his preview first shows up is 7:55.

Thank you so much!! I know it’s quite a lot to ask, but I’ve been stuck on this all day.

On that top called out1 you need to click on the round blue circle in the bottom right of the node in order to display the top content onto your background.
If you look at 7:55 when he goes back to the network that blue circle on out1 is lit.
Probably that moment in the video where he clicked on the circle was edited out by mistake.

You can display more than one top as background.

You can also right click on the top and then click on ‘view’. You can resize that floating window. This is my preferred technique because I often find quite confusing visualizing the top in the background, just my personal preference.

I hope that helps!

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Thank you!!! That did it for me!!!