Hello!
Go to:
https://playground.babylonjs.com/#M7U9GS#18
Open the highlights material in NME:
Change this node’s target to Vertex:
There are some expected changes, no render. Change the target back to Fragment.
like this:
No render. Expected to have the highlights rendered.
Thank you!
I’m fully booked all the afternoon
Let me add @Evgeni_Popov to see if he can have a look
Thank you! 
For the post process node material to work properly you need to use the CurrentScreen block as the texture block, not a regular Texture block:
https://playground.babylonjs.com/#M7U9GS#55
That will ensure the texture lookups are always done in the fragment shader.
Hi!
Can we elaborate on this a bit please? I’m setting the texture by code and it works at first as you can see the highlights on the screenshot. When I change the target in nme to any other value and I change it back to the original one shouldn’t the result be the same and shouldn’t I see the highlights again? Thanks!
@Evgeni_Popov I guess I can repro what @roland said.
Basically if you change the target wrongly on a node → switching from fragment to vertex, currently there is a shader compilation error so then we can not recover the preview.
Even though the next compilation is sucessfull? I don’t know the implementation details just guessing that this should work. 
Ok, I found why it did not work when using a regular texture, here’s the fix:
If you set the target of UV scale to Vertex you will have to enable the Disable multiplying by level switch of the texture:
That’s because in Vertex mode the level property of the texture is used as a multiplicator for the lookup, and as the texture block has no texture the level ends up being 0.
Thank you!
