All objects in DISE can be combined together. A combined object will display one object inside the other by using one of the objects as a mask for the other. This allows you to for instance create a text with a video showing inside. By default, some properties will not be applied to merged objects, such as shadow and transparency - selecting the object, these features are grayed out in the Object Properties.
Combining two objects
Select the two objects you want to combine, and either right-click or click the Group icon in the toolbar and select Combine objects.
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You can at any time select Split into objects to revert back to the original objects.
Example
Settings
Use alpha from
- Lets you select which object to use as a mask for the other.
Alpha texture options
- The mask can come from the alpha channel contained in the object, or be calculated using the object's luma/chroma channels.
Invert alpha
- If checked, selects everything outside the alpha texture instead.