- Clip with girl against green screen.
- Bring into After Effects.
- Used Keylight to pull green screen (just one click. I wasn’t trying to pull a really good key.)
- Rendered out as .avi with RGB+Alpha selected.
- Drag .avi into content browser of U4.
(Wait a second for cursor to change from error to o.k.) - It shows up as Media file.
- Right click on the icon in content browser and select “create media texture”.
- Another icon appears next to it. Its a media texture now.
- Double click on the media file icon and a player opens up.
- Play file in the viewer popup and set to loop.
- Then close the popup viewer. (its still playing after you close the player)
- Create BSP box on your map.
- Drag media texture icon over and onto the surface of the box.
- Another icon appears in the content browser now.
- Its a material now.
- Double click on the material icon in content browser.
- Blueprint opens up.
- Set the material in the properties bin on the left as “masked”.
- The mask input on the material node will now be accessible.
- Connect the alpha output to the mask input in the material node.
- Click on “apply”.
- After a few seconds you will see the projection with transparency playing on your box actor in the main viewer.