Objects are a high-level abstract tag, meaning they serve as a base for many other tag types but cannot be directly created themselves. Generally, they are "things" with a position in the world but are distinct from the "level" itself. Some examples include elevators, trees, warthogs, and the player.

Some capabilities available to objects (though not used by every subtype) are:

• Be rendered with a model
• Have physics and be collideable
• Cast shadows using lightmap data
• Have attachments like particles, sounds, and lights
• Be attached to each other (e.g. pelicans carrying warthogs)

Shadows #

For most dynamic objects, Halo uses shadow mapping with their render model, unless the object's "does not cast shadow" flag is true. However, with scenery, shadows are baked into the lightmap using the object's collision geometry instead, regardless of the "does not cast shadow" flag.

Structure and fields #

This information was partially generated using Invader tag definitions.

Acknowledgements

Thanks to the following individuals for their research or contributions to this topic:

• Kavawuvi (Invader tag definitions)
• MosesOfEgypt (Tag structure research)