Virtual MaskArea

Virtual MaskArea

Virtual MaskArea is a Construct 3 world plugin for clipping explicitly assigned 2D world objects through an isolated alpha-mask group.

Key Features

• Clip picked Sprite, Text, 9-Patch, Tiled Background, and other 2D world-object instances.
• Use a resizable and rotatable rectangle controlled by the Virtual MaskArea instance.
• Use another world object's alpha for circular, rounded, soft-edged, or irregular masks.
• Inside mode keeps pixels covered by the mask.
• Outside mode removes pixels covered by the mask.
• Enable or disable clipping without removing assigned content.
• Add, remove, clear, and inspect masked objects through conditions, actions, and expressions.
• Save and restore mask settings, assigned object UIDs, and layer restoration metadata.

Typical Uses

• Scrolling inventory and dialog panels.
• Circular portraits and irregular UI windows.
• Map viewports and cropped scene elements.
• Cutout, spotlight, vignette, and hole effects.

Basic Workflow

Place Virtual MaskArea in a layout, pick the required 2D world-object instances, and run Add masked objects. Resize or rotate the MaskArea when using Rectangle shape. For Object alpha, pick another world object and run Set mask object.

What's Included

• Virtual MaskArea 1.1.1.0 Construct addon package.
• Rectangle and object-alpha masking modes.
• Inside and Outside clipping modes.
• English PDF user guide.

Compatibility

• Construct r450 or newer.
• Construct Addon SDK version 2.
• Resizable and rotatable 2D world plugin.

Scope

Clipping affects rendering only. It does not change collision tests, pointer tests, or event picking. HTML elements, 3D rendering, nested masks, and cross-group Z interleaving are not supported. Each mask uses isolated GPU textures and therefore has a fill-rate and render-target cost.