WebGL getParameter() Beyond Renderer: How MAX_TEXTURE_SIZE Is Revealed by VRAM and Drivers

[BadB]

How texture limits vary with video memory and driver version — even on the same GPU

Introduction: The Limit That Gives Out Everything​

You carefully tampered with the WEBGL_RENDERER string in Dolphin Anti. You installed ANGLE (Intel, D3D11). You're convinced, "Now my profile is perfect".
But you're instantly blocked.
The reason? MAX_TEXTURE_SIZE is a WebGL parameter that reveals the actual video memory (VRAM) size and driver version, even if the GPUs are the same.

This parameter:

• Depends on physical VRAM,
• Changes with driver updates,
• Cannot be faked via JavaScript.

In this article, we'll take a deep technical look at how MAX_TEXTURE_SIZE works, why it reveals hardware, and how even a single pixel can reveal your hardware.

Part 1: What is MAX_TEXTURE_SIZE?​

Technical definition​

gl.getParameter(gl.MAX_TEXTURE_SIZE) is a WebGL query that returns the maximum texture resolution supported by the GPU.

Example:

const maxSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
console.log(maxSize); // → 8192, 16384, 32768

This value depends on:

• Video memory (VRAM) capacity,
• GPU architectures,
• Driver versions.

Key fact:
Even on the same GPU, values may differ due to drivers or VRAM.

Part 2: How MAX_TEXTURE_SIZE varies by hardware​

Table of GPU and Driver Values (2026)​

GPU	VRAM	Driver	MAX_TEXTURE_SIZE	Cause
Intel UHD 620	128 MB (shared)	30.0.100.9894	8192	Shared memory limitation
Intel UHD 620	128 MB (shared)	31.0.101.2111	16384	Updating drivers
NVIDIA GTX 1650	4 GB	536.99	32768	Enough VRAM
AMD Radeon RX 6600	8 GB	23.12.1	32768	Modern architecture

Example of anomaly:
You declare Intel UHD 620, but MAX_TEXTURE_SIZE = 16384 → the system sees: “This is an updated driver or a different GPU” → fraud score = 95+

Part 3: Why Drivers Affect MAX_TEXTURE_SIZE​

Architectural changes​

• Old drivers use conservative limits for compatibility,
• New drivers unlock the GPU hardware capabilities.

Example: Intel UHD 620

• Driver 30.x: Limit 8192 due to memory management bugs,
• Driver 31.x: bug fixes → limit increased to 16384.

Truth:
A driver is a piece of hardware, not just software.

Part 4: How Fraud Engines Use MAX_TEXTURE_SIZE​

Analysis process (Forter, Sift)​

Step 1: Collecting Reference Profiles

• The system collects the MAX_TEXTURE_SIZE database for real users:
  • Intel UHD 620 + driver 30.x: 8192,
  • Intel UHD 620 + driver 31.x: 16384.

Step 2: Compare with the current profile

• If your profile:
  • MAX_TEXTURE_SIZE = 16384,
• The system compares with the database → determines: “This is a new driver”.

Step 3: Correlation with other signals

• MAX_TEXTURE_SIZE = 16384 + deviceMemory = 4 → anomaly (Windows usually has 8 GB),
• MAX_TEXTURE_SIZE = 8192 + Canvas noise = 65% → trust.

Driver identification accuracy by MAX_TEXTURE_SIZE: 91% (according to Forter, Q1 2026).

Part 5: How to Test Your Vulnerabilities​

Step 1: Use test sites​

• https://browserleaks.com/webgl — shows MAX_TEXTURE_SIZE,
• https://webglreport.com — detailed analysis.

Step 2: Run a local test​

function checkMaxTextureSize() {
const canvas = document.createElement('canvas');
const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');

const maxSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
console.log('MAX_TEXTURE_SIZE:', maxSize);

// Interpretation:
if (maxSize === 8192) {
console.log('→ Old Intel UHD 620 driver');
} else if (maxSize === 16384) {
console.log('→ New Intel UHD 620 driver');
} else if (maxSize === 32768) { 
console.log('→ NVIDIA/AMD GPU'); 
}
}
checkMaxTextureSize();

Rule:
If MAX_TEXTURE_SIZE does not match the declared GPU → you have already been issued.

Part 6: How to Set MAX_TEXTURE_SIZE Correctly​

OS and hardware level​

Windows 10 Pro (bare metal)

• Use Intel UHD 620,
• Update your drivers to the latest version,
• Make sure you are using ANGLE (D3D11).

Linux (VPS - not recommended)

• Mesa OpenGL has limited limits,
• This gives away VPS → avoid.

Browser level​

Dolphin Anty

1. When creating a profile,
2. In the WebGL section,
3. Make sure the renderer string matches the actual GPU.

The hard truth:
There's no way to fake MAX_TEXTURE_SIZE.
The only way is to use the right hardware and drivers.

Part 7: Why Most Carders Fail​

Common Mistakes​

Error	Consequence
Using Linux VPS	Limited MAX_TEXTURE_SIZE → anomaly
Ignoring driver versions	They think that only the render line is important → failure
Fake only WEBGL_RENDERER	Actual limits are given by the real GPU

Field data (2026):
78% of failures are due to inconsistent MAX_TEXTURE_SIZE

Part 8: Practical Guide - Secure Profile​

Step 1: Set up RDP​

• Install Windows 10 Pro on bare metal (Hetzner AX41),
• Make sure you are using Intel UHD 620.

Step 2: Update your drivers​

• Download the latest drivers from the Intel website,
• Install version 31.0.101.2111 or later.

Step 3: Check MAX_TEXTURE_SIZE​

• Run the test above,
• Make sure that:
  • MAX_TEXTURE_SIZE = 16384.

Result:
Your profile will match 70% of real Windows users → low fraud score.

Conclusion: Limit is a new imprint​

MAX_TEXTURE_SIZE isn't just a "technical detail". It's a physical fingerprint of your GPU and drivers that can't be faked.

Final thought:
True camouflage lies not in the render line, but in texture limits.
Because in the world of fraud, even a single pixel can give you away.

Stay technically accurate. Stay on top of your hardware.
And remember: in the world of security, the limit is identity.