Alien Swarm Deferred

Alien Swarm ▶

Alien Swarm: Reactive Drop

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Alien Swarm Deferred was released in 2012. It's a third-party mod created by Kristjan Skutta a.k.a. Biohazard90. This fork of Alien Swarm has support for deferred lighting and shadows (similar to Xengine). It's among very few Source games 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 mod can support hundreds of dynamic shadows with very little performance impact.

Important:Alien Swarm Deferred's lighting implementation and Black Mesa's are completely different, for example MSAA is not supported in Black Mesa while in Alien Swarm Deferred it is!

Warning:Alien swarm deferred's lighting implementation nukes lightmaps, aka it will disable all baked lighting and the world will only receive realtime lighting and shadows!

Note:In

Lambda Wars it was changed so that deferred lighting blends with lightmaps instead of disabling them.

Features

New since Alien Swarm:

CSM: Real time deferred shadows and lighting from light_deferred and light_deferred_global entities.
Light cookies: Now light_deferred is capable of projecting textures with cookies.
Blinn–Phong reflection model: New reflections on Phong materials, somewhat similar to specular from Xengine.
Volumetric lighting: Light_deferred is capable of enabling volumetrics that react to the environment in real time.
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

Availability/Code usage

2014 Lambda Wars (Uses an enhanced version of ASD's deferred lighting implementation.)
TBA Director's Cut (Initially. Switched to Source 2013 Multiplayer.)
TBA Portal 2: Desolation (Light editor only, the rendering code for lighting has been rewritten from scratch.)
TBA VANCE
Confirm:While it runs on some version of Source 2013, some of its files relating to Deferred lighting have some similarities with ASD, but its most likely not related.