If you insert a Texture invert node as shown below
Does the texture appear (please make sure only A is selected)? Because from the fact that there is 1920 x 1080 px written below Render to canvas node it seems the texture is coming from UE4 but the alpha is 0.
If the above suggestion solved your problem then you probably have SceneColor (HDR) in RGB, Inv Opacity in A selected in the properties of your Scene capture component in UE4.
After a few more to and fros in PM, what turned out to be the solution was:
I think your spout might be set to Memory share instead of Texture share.
I’ve been able to reproduce your error. In Spout2 folder, where you have Demo/spout receiver/sender programs, there is also a SPOUTDXMODE folder. In there, there is a program called SpoutDXmode.exe. Run it please. It should look like this:
Please make sure you have Texture share enabled and not Memory share.
Because when I looked again at your Spout receiver screenshots, I saw that it says Memoryshare whereas in mine it says Textureshare
having the same issues as milosz,
sending and receiving between spout and LA works fine but when I attempt to do so through UE4 (both from scratch following the tutorial video and from the example projects) I get the same error.
I’ve set my Spout settings to what’s described above and here’s my DirectX Diagnostic below:
OK, the main problem seems to be ‘Cannot create DirectX/OpenGL interop’. All the others, such as ‘Couldn’t read Shared Memory’ are not really bugs - just warning & notifications.
Unfortunately, I don’t have any out-of-the-box ideas yet, but I’ll try to reproduce the error tomorrow. The only idea I have atm is that UE4 for some reason uses another GPU (integrated graphics perhaps?)
Reminded me of this post:
Is there any chance you could try on a different computer in the meantime?
This error looks similar to one of the issues I had in the past (Author of the linked issue post). In my case I was running everything on a laptop, and LightAct had been using integrated graphics while UE4 was using the proper card. I believe spout needs both to be running on the same card since it uses shared memory to communicate.
Ensure that both applications are set to the same graphics card, if there are multiple. (NVidia control panel should have these settings) If that’s not the case, then unfortunately my post will be of little help.