One of the most annoying things when you try to get a screen recording of your game is the huge black borders on either side of the screen that look like this.
http://i.imgur.com/6eVjJey.jpg
This is the default view for all UE4 games but there is a way to be able to change the view to wide screen without stretching the image.
1st You need to find and open a file called SteamVRRender.cpp This is the path for that file on my computer.
http://i.imgur.com/bf670Bf.jpg
2nd Change it from this
RendererModule->DrawRectangle( RHICmdList, ViewportWidth / 4, 0, ViewportWidth / 2, ViewportHeight, 0.1f, 0.2f, 0.3f, 0.6f, FIntPoint(ViewportWidth, ViewportHeight), FIntPoint(1, 1), *VertexShader, EDRF_Default);
http://i.imgur.com/na0ZfJr.jpg
to this
RendererModule->DrawRectangle( RHICmdList, 0, 0, ViewportWidth, ViewportHeight, 0.0f, 0.3f, 0.4f, 0.4f, FIntPoint(ViewportWidth, ViewportHeight), FIntPoint(1, 1), *VertexShader, EDRF_Default);
http://i.imgur.com/b9ZWffI.jpg
3rd Save the change then rebuild the version of the engine you are using. I'm using the Oculus forward renderer so this is where I go
http://i.imgur.com/grw4NR5.jpg
I click on UE4.sin Then I click on Build Solution
http://i.imgur.com/MnTRx6B.jpg
After that when I play the game in the project editor or a packaged game and I want to do a screen recording it goes from this before build
http://i.imgur.com/BNkuacu.jpg
To this after build