In this two-week course we started in the green screen room. The green screen is all a backdrop for filming stunt shots, where the actors perform in front of the green screen, captured by the camera, and the images are processed in the computer to get rid of the green in the background and replace it with other backgrounds. Nowadays, in some films, it is possible to shoot all in front of the green screen without using real backgrounds at all.
For this week’s assignment I needed to create two small planets to match the movements of the actors in the video, first I used Keylight to remove the green screen, clicking on the colour swatch next to the screen colour to activate the dropper. In the viewer, hold Ctrl/Cmd+Shift+Alt and click and drag a rectangular area over the blue pixels, selecting the screen colour will create a screen mask and remove the foreground. Then use Roto to remove the chandelier at the top, I need to adjust the resolution of the video to better match the background video
In the second step, I create a 3D scene and a card just for my character.But at the end of the merge, my image became very grey and felt like it was covered by a grey layer. After checking, I found that my uniform scale value was set too high causing the image to be unclear.
Next, I downloaded a 4K ocean shot and the first frame of the frame hold and created a card to set it up as a 3D scene.
Finally, I found two pictures of the planet to enrich the video