`f32`

Function

Casts a number to f32 single-precision floating-point by inlining a literal value rounded to 32-bit precision.

The signature and the sentence under each name are the compiler's own text at commit 26de7be8.

Syntax

declare function f32(): f32
declare function f32(x: number | bool): f32

A number in a parameter or a return position is the scalar slot. The ambient file declares a GPU scalar as a branded number whose brand is optional, so a literal and any branded scalar both fill it.

type f32 = number & { readonly [f32Tag]?: true }

A declaration you write still needs a width, and a bare number on a field or a parameter is refused; the TypeScript constructs page carries that row with the compiler's own message.

Parameters

x optional number | bool

Return value

f32

Description

This is equivalent to Math.fround(x).

Evaluated in f64 by the CPU oracle.

Targets

WGSL: f32(a)
GLSL ES 3.00: float(a)

Examples

graticule.ts
hillshade.ts
fp64-checker-plane.ts
fp64-loran.ts
fp64-mercator-tiles.ts
fp64-rtc.ts
color-ramp.ts
voronoi.ts
julia.ts
mandelbrot.ts
fbm-clouds.ts
domain-warp.ts
raymarch-sphere.ts
raymarch-boxes.ts
tunnel.ts
metaballs.ts
ocean.ts
starfield.ts
truchet.ts
kaleidoscope.ts
heart.ts
fp64-mandelbrot.ts
fp64-julia.ts
fp64-burning-ship.ts
fp64-newton.ts
fp64-mandelbrot-de.ts
fp64-clock.ts
fp64-cancellation.ts
fp64-sine-sweep.ts
gradient-pass.ts
override-quality.ts
texture-array-lod.ts
compute-reduction.ts
twin-structs.shade.ts
id-pick.shade.ts
clip-planes.shade.ts
hello-uniform-struct.shade.ts
textured-quad.shade.ts
storage-texture.shade.ts
shadow-compare.shade.ts
cube-env.shade.ts
cube-array-gather.shade.ts
msaa-resolve.shade.ts
uniform-array.shade.ts
sample-branch.shade.ts
module-const.shade.ts
palette-const.shade.ts
array-literal-ramp.shade.ts
normal-matrix.shade.ts
fp64-lane-stripes.shade.ts
block-scope.shade.ts
cutout.shade.ts
bit-bump.shade.ts
integer-math.shade.ts
packing-bitcast.shade.ts
packed-bytes.shade.ts
closures.shade.ts
higher-order.shade.ts
inferred-returns.shade.ts
array-methods.shade.ts
loops-over-data.shade.ts
path-tracer.shade.ts
capsule-corp-namek-class.shade.ts
generic-helpers.shade.ts
class-syntax.shade.ts
rng-method.shade.ts
class-builder.shade.ts
class-parts.shade.ts
rt-renderer-class.shade.ts
imported-noise.shade.ts
separable-blur.shade.ts
feedback-trail.shade.ts
private-state.shade.ts
loop-kernel.shade.ts
loop-reduction.shade.ts
hillshade-twin.shade.ts
plasma-twin.shade.ts
julia-twin.shade.ts
mandelbrot-twin.shade.ts
domain-warp-twin.shade.ts
tunnel-twin.shade.ts
ocean-twin.shade.ts
starfield-twin.shade.ts
kaleidoscope-twin.shade.ts
gradient-twin.shade.ts
voronoi-twin.shade.ts
fp64-deep-zoom-twin.shade.ts
fp64-checker-plane-twin.shade.ts
fp64-loran-twin.shade.ts
fp64-rtc-twin.shade.ts
fp64-julia-twin.shade.ts
fp64-burning-ship-twin.shade.ts
fp64-newton-twin.shade.ts
fp64-mandelbrot-de-twin.shade.ts
fp64-clock-twin.shade.ts
fp64-cancellation-twin.shade.ts
fp64-sine-sweep-twin.shade.ts