Silhouette may display a completely white screen when viewing the alpha channel of a Roto node if the source footage has an opaque alpha channel. This prevents the roto shapes from being visible in the alpha view.
Cause of white alpha view in Silhouette
Silhouette Roto node alpha display depends on the alpha channel of the source image.
This issue occurs when:
The source image has a fully opaque alpha channel
The alpha channel overrides the visibility of roto shapes
The Viewer shows a solid white alpha instead of the roto matte
How to fix the white alpha view in Silhouette
Silhouette users can correct the alpha display by adjusting the source node settings.
Steps:
Select the source image thumbnail in the Trees window
Open the Node window
Change Alpha > Fill from None to Transparent
This setting allows Silhouette to properly display the roto shapes in the alpha view.
Result after fixing alpha settings in Silhouette
After updating the alpha settings:
The Roto node alpha view will display the roto shapes correctly
The Viewer will no longer appear completely white
Roto mattes will be visible as expected in Silhouette
This adjustment ensures accurate alpha visualization when working with Silhouette roto nodes.