RenderSurface source creation

Now let’s create a source and extract a portion of our RenderSurface.

• In the Edit tab, click on + to create a new source.
• Name it BACKGROUND.
• In the Editor panel set the Input type to Render Surface and in the second drop-down menu select your render surface.
• In the Crop subtab tick the Enable and Extract boxes and set the width to 3456. Keep the height at 1080.