Model optimization

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Optimized Rocket Launcher w_model
Now that there was a fine piece 'a work.
The Engineer on model optimization

In discussions about model optimization, Level of Detail, or LOD, is often brought up. This article shows the effect of LOD on the polygon count in models. The charts show which models have received optimization updates in the form of LOD and which models are still unoptimized.

Background

LOD

Main article: LOD

To reduce the number of polygons that need to be rendered in a scene, the Source Engine will render alternate lower-quality models as the distance between the model and camera increase. LOD models are not created dynamically by the engine; instead, all of the levels of lower-quality models must be included in the game files for LOD to be enabled.

Weapons

Key Unoptimized Optimized

Cosmetics

Key Unoptimized Optimized

Scout

Soldier

Pyro

Demoman

Heavy

Engineer

Medic

Sniper

Spy

Multi-class

All classes

Buildings

Key Unoptimized Optimized
Class Item Highest quality LOD (polycount) Lowest quality LOD (polycount) LOD Efficiency
Leaderboard class engineer.png Engineer Dispenser (Level 1)
 7,086 
 1,598 
77.45%
Dispenser (Level 2)
 14,294 
0%
Dispenser (Level 3)
 15,462 
0%
Sentry Gun (Level 1)
 4,030 
 640 
84.12%
Sentry Gun (Level 2)
 10,167 
 2,329 
77.09%
Sentry Gun (Level 3)
 11,312 
 2,955 
73.88%
Teleporters
 4,456 
 1,790 
59.83%

Classes

Key Unoptimized Optimized
Class Highest quality LOD (polycount) Lowest quality LOD (polycount) LOD Efficiency
Scout
 5,524 
 593 
89.27%
Soldier
 6,408 
 502 
92.17%
Pyro
 2,406 
 294 
87.78%
Demoman
 6,518 
 466 
92.85%
Heavy
 4,728 
 522 
88.96%
Engineer
 6,754 
 721 
89.32%
Medic
 6,658 
 635 
90.46%
Sniper
 6,092 
 519 
91.48%
Spy
 5,360 
 565 
89.46%

Update history

January 7, 2008 Patch
  • Graphics optimizations for mid and low end hardware.

January 25, 2008 Patch

  • Added more particle optimizations for mid range and low end hardware.

February 14, 2008 Patch

  • Optimized some particle systems to improve performance on some hardware configurations.
  • Made some small changes to the Demoman viewmodel that were causing performance problems.

April 29, 2008 Patch (Gold Rush Update)

  • Improved particle performance on multi-core machines.

January 19, 2011 Patch

February 3, 2011 Patch

March 10, 2011 Patch

October 13, 2011 Patch (Manniversary Update & Sale)

  • LOD models added to several older cosmetic items

December 15, 2011 Patch

February 23, 2012 Patch

April 18, 2012 Patch

June 3, 2013 Patch

  • Fixed a missing LOD on the Dispenser

July 8, 2014 Patch

  • Fixed some Festive weapons using the lowest LOD for the first person view.

December 12, 2014 Patch

August 18, 2015 Patch #1

  • Updated LODs for several weapons and the Sentry Gun

August 18, 2015 Patch #2

See also

External links