War Thunder: Best config.blk for Ultra-Low Quality Competitive

The objective is to manipulate the Visibility Range and Particle Cull settings to ensure that while the world looks simplified, the enemy models are rendered with high priority and no obscurance.

Setup & File Navigation

1. Locate the File: Go to your War Thunder install folder (usually C:\Program Files (x86)\Steam\steamapps\common\War Thunder\).
2. The Target: Look for config.blk.
3. The Procedure: Open with a text editor. Before saving your changes, right-click the file, go to Properties, and prepare to check Read-only after editing so the launcher doesn’t overwrite your tweaks.

Optimized “Competitive” Configuration Table

Parameter	Recommended Value	Technical Purpose
renderer3:t	"d3d11"	The Stability Fix. Avoids DX12 shader-stutter in ULQ mode.
grass:b	no	Removes all grass that hides hull-down tanks.
shadows:b	no	Eliminates dark spots where enemies can hide.
cloudsQuality:t	"low"	Maximizes visibility for AA and Interceptors.
haze:b	no	Removes the “heat shimmer” that blurs long-distance targets.
lenseFlares:b	no	Prevents the sun from blinding you during dogfights.

HowTo: Engineering the ULQ Pipeline

Follow these GameEngineer.net technical steps to achieve the ultimate tactical advantage:

1. The “Old Video Card” Toggle: In config.blk, ensure compatibilityMode:b=yes is set. This is the “hard” ULQ toggle. It replaces complex shaders with simple color fills, making a green tank stand out vividly against a brown mud background ($C_{delta}$).
2. The Tree-Range Protocol: To spot planes and tanks before they spot you, find the backgroundScale and rendinstDistMul settings.
   • backgroundScale:r=1.5 (Supersampling for clarity)
   • rendinstDistMul:r=0.5 (Reduces tree rendering distance so enemies can’t hide behind far-off woods).
3. Particle Suppression ($P_{supp}$): Set softParticles:b=no. This removes the “softening” of smoke and explosions. While it looks “ugly,” it ensures that the smoke from a destroyed tank has sharp edges, allowing you to see through the gaps in the cloud much more easily.
4. The Sound Engine Shortcut: Competitive play isn’t just visual. In config.blk, find the sound block and ensure speakerMode:t="stereo". Even if you have 7.1 headphones, “Stereo” in War Thunder provides the most accurate Binaural Audio cues for engine sounds through walls.
5. Launcher Bypass: Never open the game via launcher.exe after editing. Launch directly from aces.exe. The launcher will detect your “illegal” settings and force a reset.

Technical Explanation: Render Buffers and Alpha Clipping ($A_{clip}$)

By using compatibilityMode, you are forcing the engine to use Alpha Clipping instead of Alpha Blending for foliage.

$$Complexity = \sum (Pixel \times Transparency\_Layers)$$

In standard modes, the GPU calculates how much “light” passes through every leaf. In ULQ, the engine simply asks: “Is this pixel a leaf? No? Then show the tank behind it.” This eliminates the $T_{render}$ overhead of transparency, giving you a flat, high-contrast image where the movement of a single pixel at $3000m$ is immediately detectable by the human eye.