OES_texture_half_float_linear

The OES_texture_half_float_linear extension is part of the WebGL API and allows LINEAR and LINEAR_MIPMAP_* magnification/minification filters to be used with half floating-point pixel types. Must be used with OES_texture_half_float extension. Without this extension, only nearest-neighbor filtering is available for half-float textures. Available in WebGL1 only; in WebGL2, linear filtering for half-float textures is available by default.

Modern anti-bot systems verify WebGL extensions to detect automated browsers. Mismatches between GPU hardware and available extensions are strong bot signals.

What Anti-Bot Systems Check:

• Extension availability: Does the reported GPU support these extensions?
• Extension combinations: Are the extensions typical for this GPU model?
• Consistency checks: Do reported extensions match other GPU signals?
• Missing extensions: Are expected extensions for this GPU absent?