Blender Camera background image not rendered in Cycles

Blender Camera background image not rendered in Cycles

Before all, you need to [change film to transparent][film-transparent]. Render - Film, check the “transparent”.

First, go to the Compositing section, and check “Use nodes” at top left.

Access the Compositor and activate nodes for compositing by clicking the Use Nodes checkbox in the header

You will need Image node to pick the background image, and may also need Scale node to scale the fill the camera viewport.

And Alpha Over node, it’s in Color - Mix sub menu.

Then connect nodes as following image, you will make it.

{{0xc0033d0460 0xc0033d0460 comp-en.webp Blender’s compositing editor Blender’s compositing editor 0xc001a8b6e0} 0 false}

Reference:

Hugo Stack theme how to disable image processing Blender render animation with transparent background