texture interp (built-in)

Each thread does a straight-line "zoom in" scan across a small rgba32float texture, advancing a quarter of a texel per sample (most samples land between the same or adjacent texel pair). The GPU's texture-filtering hardware does the bilinear interpolation via textureSampleLevel. Needs the "float32-filterable" device feature.

Measured in B/s. Higher values mean better performance. Benchmark your device.