API reference

classDataTexture

A 2D texture whose pixels live in a CPU-side typed array. Mutate the `buffer` directly and call commit to upload the whole array, or commitRect to upload a sub-region (cheaper for ring-buffer patterns like spectrograms). `DataTexture` extends Texture, so any API that accepts a `Texture` (filter uniforms, mesh textures, custom shader uniforms) accepts a `DataTexture` unchanged. # Default sampler `DataTexture` defaults to nearest filtering, clamp-to-edge wrap, no mip generation, and no premultiply. These match the typical "raw data lookup" use case where bilinear filtering would corrupt sampled values (e.g. spectrum bins sampled by index). # Bring-your-own buffer Pass `data` in options to share an external buffer. Useful for: - SharedArrayBuffer + Worker pipelines (audio DSP off the main thread) - Buffer pooling across many small textures - Interop with WebAssembly memory or other APIs that produce typed-array views The buffer reference is fixed for the lifetime of the texture (the `buffer` property is `readonly`); only its contents may be mutated. # Format / buffer correspondence The TypeScript type system narrows `buffer` based on `format`: const r8 = new DataTexture({ width: 256, height: 1, format: TextureFormat.R8 }); r8.buffer // Uint8Array const r32f = new DataTexture({ width: 256, height: 1, format: TextureFormat.R32F }); r32f.buffer // Float32Array