Masks, mattes and effects

Masks, track mattes, blend modes and effects control how layers combine and look. Lumetrope supports all of them with live canvas preview.

What is the difference between a mask and a matte?

A mask is a path drawn on a layer that hides everything outside it. A track matte uses another layer as the mask, by its alpha or its luma (brightness).

What blend modes and effects are supported?

• Blend modes: per-layer.
• Effects: drop shadow, gaussian blur, fill, tint and tritone.

Why do blur or luma mattes look wrong on my system?

Older webviews may lack Canvas2D filters. Lumetrope falls back to the CPU renderer automatically, and you can switch manually with View, Renderer. See Troubleshooting.