Render PNG with transparent background

[MobsterA]

Hi all,

I work with interactive books where I use illustrations. Hence I would like to open e.g. a building in Unreal and render only the building on a transparent background in order to have the freedom to place it in any visual context.

I am very technically unfit and can’t seem to find any tutorials online.

Any help would be greatly appreciated.

Cheers Adam

[EvanHammel (PixelDriven)]

Hi Adam,

You can render images out of Unreal on an Alpha channel.

In your project settings, search for “Alpha” and set the following setting:

In your level, you will need to construct your render scene where only the Building is visible.

If you have only have the Building and lights in the level, that should be fine. If you have a background behind it, or other objects, or an HDRI, you will need to set a couple settings on all of those meshes. Set “Visible” to Off, and “Affect Indirect Lighting While Hidden” to On.

When you render in this way, the building should be on an Alpha channel in the render.

You will need to use an image type that supports Alpha channels such as PNG or EXR.

[MobsterA]

Dear Evan,

Thank you truly for your reply and kind help. It works.

Thanks again and all the best
Adam