Portal 2 (engine branch)

The Portal 2 Engine Branch was introduced with Portal 2 in 2011. It succeeds the Alien Swarm engine branch.

Features

New since the Alien Swarm branch is:

Improved shadow mapping

The entity env_projectedtexture is significantly improved. Compared to previous implementations, it has higher default resolution, better edge filtering and support for the caching of shadows from static objects.

Sound operators

For defining complex audio behaviour.

Blob particles

Used to render paint.

Video playback on materials

Added support to render Bink Video in-game on surfaces.

Availability

• Portal 2
• Dino D-Day
• INFRA
• The Stanley Parable

Source code for this branch is not available. However, authoring tools exist for custom content.

• Portal 2 Authoring Tools