Spout Out off screen renderering

I’m now working with standalone application that sends a texture via Spout.
AFAIK Spout sender can only send final result of the application.
Can I send other texture?
for example - Image2D, Layer Precomp, or single layer.

AFAIK Spout is the final render only. However, as an alternative, you can use NDI to output parts of your render/composition.

Yes I already tried NDI but it’s too heavy to use because of the big resolution.
But anyway, thank you for replying!