`DERIVATIVE_INTRINSICS`

Constant in Backends

The intrinsics whose value is a difference between neighbouring invocations, so WGSL requires uniform control flow at the call: the derivatives themselves and every sampling form that derives its level of detail implicitly.

import { DERIVATIVE_INTRINSICS } from 'typeshade'

The signature, the description and the examples come from the compiler's own source at commit 26de7be8.

Syntax

const DERIVATIVE_INTRINSICS: ReadonlySet<string>

Description

Derived from the catalogue above rather than listed, so a sampling id added there joins by construction: every textureSample… id that is not an explicit-Level or Grad form needs the implicit LOD, and dpdx / dpdy / fwidth and their Coarse and Fine variants are the derivative. textureSampleLevel, textureSampleGrad and textureSampleCompareLevel carry the level the author wrote and are therefore legal anywhere — which is why the diagnostic for one of these names them as the fix.

Not the same question as fragment-only-builtin’s FRAGMENT_ONLY_IDS, which asks which stage may reach an id and carries a per-id fix string; that map is a subset of this set, pinned by a test rather than derived, because a fix sentence is written, not computed.

Source

src/core/intrinsics.ts, line 1175, at commit 26de7be8

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