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WasmGPU | Documentation

colormap#getRGBA8LinearLUT

colormap#getRGBA8LinearLUT¶

Summary¶

colormap#getRGBA8LinearLUT returns a copy of the CPU-side lookup table as packed linear-space RGBA8 bytes. Mutating the result does not change the colormap. The method throws for an external GPU-only colormap.

Syntax¶

Colormap.getRGBA8LinearLUT(): Uint8Array
const result = colormap.getRGBA8LinearLUT();

Returns¶

Uint8Array - A new width * 4 byte array in RGBA order.

Example¶

const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const colormap = wgpu.colormap.viridis();
const lut = colormap.getRGBA8LinearLUT();
console.log(lut.length === colormap.width * 4); // true

See Also¶