Is there a way to create a 2D gradient overlay in UE4 with blend modes?

Development Rendering
1

Is there a way to create a 2D gradient overlay in UE4 with blend modes?

I created a photoshop mock up of what I’m trying to achieve and attached it to this message. The effects I want to reproduce are the two images labeled “gradient overlay” and “gradient overlay with blend mode”.

effects display 2.jpg
effects display 2.jpg1333×339 113 KB

I’m imagining it to be similar to the vignette effect, but just starting from one side of the screen and with blend modes.

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You can create gradients procedurally like so:
http://udn.epicgames.com/Three/MaterialMasks.html

The rest can probably be handled in post process.