Alien Swarm Deferred

Alien Swarm Deferred was released in 2012. It's a third-party engine branch created by Kristjan Skutta a.k.a. Biohazard90. This branch of Alien Swarm has support for deferred lighting and shadows (Similar to Black Mesa). It's among very few Source engine branches that have dynamic shadows not based on projected textures, while still having its source code available to the public. Performance-wise, it is extremely impressive as the engine can support hundreds of dynamic shadows with very little performance impact.

Note:Documentation on this branch is limited. The original author never wrote a lot of documentation for it, or it has been lost to time.

Important:Only deferred lighting lights maps. Except in Lambda Wars where it blends with VRAD's baked lighting.

Warning: Alien Swarm Deferred's fgd does not contain any new light entities or parameters as they are supposed to be edited realtime with the Light editor.

Important:All light entities will be converted to deferred upon launching the map!

Features

• CSM
  • Real time shadows and lighting from Light environment, Light, Projected texture, and Point spotlight entities.
•  Blinn–Phong reflection model
  • New reflections on Phong materials.
•  Volumetric lighting
  • Similar to Source Filmmaker.
• Source shader editor
  • Make and edit shader graphs in real-time, in-engine.
• Light editor
  • Edit your map's light entities dynamically.

Media

Phong reflections

Volumetric lights and god rays

Realtime shadows

Light editor

Light editor can be opened with TAB, and its settings are:

Action

• Select light
• Add light
• Translate
• Rotate

Show properties

Edit your currently selected light's properties.

Edit global light

Todo: what does this actually do?

VMF handling

Load, edit and save your VMF's lights.

Debug

• Turn on and off deferred statics
• Render modes:
  • None
  • Light
  • Normal

Availability

• Lambda Wars
• Director's Cut (Initially)
  Clarify: Director's Cut switched to Source 2013 after a development reset, is its inclusion here necessary?

Bugs

• No hardware filtering support for Advanced Micro Devices
• Source 2013 Multiplayer port only lights and casts shadows for entities^{[Clarify][citation needed]}

See also

• CSM
• Alien Swarm engine branch
• Phong

External links

• Download at Google Drive
  Confirm:Is this the original download?
• 2013MP Port GitHub Repository
• YouTube - Deferred lighting in action.