Layer Masks

Visibility control where one layer's shape acts as a stencil for others.

• Inclusion Mask: ✅ Supported (Show inside)
• Exclusion Mask: ✅ Supported (Show outside)
• Multi-Mask: ✅ Supported (Up to two masks)

Associated Test Files:

• basic_mask_square.amproj
• basic_mask_circle.amproj
• basic_child_mask.amproj

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Technical Details & Implementation

Fragment Clipping

Masking is performed in the UnifiedEffectMaterial. The shader checks if the pixel is inside the mask layer's bounds.

Coordinate Space

Masks are calculated in the target layer's local space to handle parent transformations correctly.