hq2x

hq2x(tex, uv, texelSize, threshold): Node<"vec4">

Defined in: packages/nodes/src/upscale/hq2x.ts:22

HQ2x-style pixel art upscaling (simplified GPU implementation). High quality 2x upscaling that preserves edges while smoothing.

Note: This is a simplified approximation of the full HQ2x algorithm, which requires lookup tables that are impractical for real-time GPU shaders.

Parameters

tex

Texture

Source texture (pixel art)

uv

Node<"vec2">

UV coordinates

texelSize

Vec2Input = ...

Size of one texel in source texture

threshold

FloatInput = 0.05

Color difference threshold (default: 0.05)

Returns

Node<"vec4">

Upscaled color

Example

const upscaled = hq2x(texture, uv, [1/256, 1/256])