User guide

KeylightThe Foundry
TUTORIAL
44
Tutorial 4: A Red Green Screen
Figure 77. Decrease the Despill Bias.
4. If you look closely, the background and foreground needs cleaning up.
Figure 78 shows the Status. We will use the Screen Matte tools to make
the cockpit windows black and the pilot white.
Figure 78. Status.
5. Increase Clip Min to 20 to remove some of the foreground showing
through the background. Decrease Clip Max to 70 to improve the opacity
of the foreground. Increase Screen Softness to 1 and set Despot to -2.
Figure 79. Composite.
6. Use the Screen Matte Replace Method to pull some of the original image
through the composite. This improves the apparent graininess in the
foreground.
Figure 80 shows the differences.
Figure 80. Close up view. The left image has Replace Method set to Source.
The right image has Replace Method set to None.