What direct x for dota?

Dota 2 primarily uses DirectX 9 for its graphics rendering, although it also supports DirectX 11 for improved performance and visual enhancements. Players can select their preferred version in the game settings. DirectX 11 provides better graphics and more efficient use of modern hardware, but some users may choose DirectX 9 for compatibility reasons. Overall, the choice between the two depends on the player's system capabilities and preferences.