Slice builds each phase's coverage argument and the detail argument (centre,
axis, radius in noise space); AffineBound and its gate read them whole.
AffineWarpStaysEnclosed checks the rays against those arguments and their
derivation from CentredWarp; AffineCompositionIsTighterThanItsRanges sees the
shared-eps composition and the intersection.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The 2D ball carries no evaluation allowance, like iv_snoise_ball(float3); the
caller that rounds the flow's point adds 2^-14 + L2 2^-20 (|centre|_1 + radius),
the convention af_snoise carries for the 3D point.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Soul s1 (cut-snoise-tie) measured 1.55 to 1.56 at magnitudes 64 and above;
0.77 holds only near the origin. Comment and design text only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Two families appended after phacelle, cultmath_snoise(vec3) and
cultmath_snoise_grad(vec3) over TiePoint3 (seven of eight cases on lattice
diagonals, one of eight on (t, t, t)); the shared Random leaves every earlier
family's draws unchanged. Both carry the tolerance text "ulp-bounded, on the
simplex tie set" and share a glsl name with the random families, so a consumer
tells them apart by index or tolerance.
Regenerated on Yggdrasil (Linux, the fixture's platform) with
CULTMATH_WRITE_GLSL=1. CultMath.glsl: the two tie lines, the constant, one
comment sentence. Fixture: 41 cases of iv_snoise_ball(vec3) and iv_fbm_ball move
with L, everything else is byte-identical before the appended families. Full
suite on Yggdrasil: 290 of 290.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
MeasureLipschitz on e89fd687 (Yggdrasil): sampled 7.1933103, refined 7.2400064,
x 1.10 = 7.9640074, witness (229.92526, 73.37927, -66.14595). The old 9.181147
sat on the diagonal tie. C#, both Interval.hlsl copies, the pin test's witness
and design.md's provenance numbers move together; CultMath.glsl follows with the
regenerated fixture.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The cyclic non-strict step(x0.yzx, x0.xyz) made the four corners a non-simplex
where x0's components are equal: the origin and every (t, t, t) read a different
function (snoise(0) was -0.4358730, jumps up to 0.77). One strict compare, z
against x, gives simplexnoise1234's order. Off the tie set old and new return
the same bits.
NoiseGradTests.SnoiseIsContinuousOnTheSimplexDiagonal fails against the old
rule (0.054 within 1 ulp of (-53.6, -53.6, -53.6)). The origin golden is 0 and a
(1.25, 1.25, 1.25) diagonal row joins it. SNOISE_LIPSCHITZ and the GLSL follow
in the next commits, so the ratio pin and CommittedGlslEqualsLowering are red here.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
(c) is FogField.DeepWell (ruling wells-scale-order-of-magnitude), measured under
the centred-warp interval bound and the affine bound on the same seeds; the
shallow wells are the printed (c-band) row. The warp-enlarged ball and the
warp-carrying detail ball in FogField.Bound are gone. (c) asserts affine cheaper
than the centred interval at both warps, with the 0.5 cull floor under both
(ruling affine-wells-contract-cheaper-than-interval).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The GLSL is generated from the HLSL by one lowering, mirrored against C# by a
committed fixture evaluated on its own arguments (portable across OSes), with
the frustum ball checked by two-sided enclosure and Phacelle by a scaled
absolute bound. design.md conflict: keeps the branch's sqrt-precision text and
drops the 6e-4 sentence interval-ops r4 removed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
iv_frustum_ball widened by its derived float32 bound, envelope-then-noise
fields, the analytic constant-density body, one shipped void (Rh 198, S 50),
LOD agreement against a converged march, and the wells contract as ruled
(cultmath-tapes:ruling:wells-overhead-plus-floor). Verdict
cut-interval-ops.s3 holds; one Low finding (LodStep footprint branch unpinned)
is recorded for the next interval cut.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
gpu-snoise-parity is Asura's FXC and Unity readback of snoise, not a GLSL run; phacelle's GLSL
evaluator is the cultmath-tapes follow-up glsl-browser-parity-run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
GoldenFixtureMatchesCSharp draws arguments only under CULTMATH_WRITE_GLSL=1: the draw calls MathF.Pow,
whose bits differ by OS. Checking decodes each committed case's arguments and evaluates C# on them.
phacelle is compared across platforms within 2^-20 max(|v|, 1) per component; iv_exp keeps one ulp.
The iv_frustum_ball check gains the upper side r + d + 2^-19 (r + |c|_1) that NoiseBoundTests pins.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The parity section states the enclosure rule, restores that the evaluator concatenates
CultMath.Phacelle.glsl for the phacelle family, and names CultLib's browser-pane run
(follow-up gpu-snoise-parity) as that evaluator. The frustum-ball bound no longer assumes
a correctly rounded GLSL sqrt: proven for C# and HLSL, measured on GLSL.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
iv_frustum_ball's sqrt is not correctly rounded on WebGL2, so its family is ulp-bounded and
its entry carries the enclosure rule the consumer applies in double; GoldenFixtureMatchesCSharp
applies it to C#'s results too. A phacelle family (normalization 0.5, platform exp, sin, cos)
is appended after iv_exp; every earlier family's cases are byte-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
EveryPublicFunctionIsLowered compares (name, parameter types) after the lowering's own
step 3, so a dropped overload such as cultmath_pcg3d(vec2) fails. TwoFileHeaderContract
pins distinct guards, the MIT and MPL-2.0 provenance labels, and the MIT file's pointer
to CultMath.Phacelle.glsl. GlslLowering exposes step 3 as LowerTypeNames; output unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Every figure is from r4's IV-REPORT lines: (a)-(d) with (c)'s oracle ceiling,
efficiency, cull fraction and probe overhead; (e) at the shipped void with the
two depth errors against the converged march; the analytic body and its pin;
the [w(z1), 1] weight-bound deviation; the contracts as asserted, (c) in the
words of ruling wells-overhead-plus-floor.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The footprint march's optical depth at the body start is measured against a
converged midpoint march (h = 0.5, every cell) and may be at most twice as
wrong as the fixed-step march; the end-of-ray assertion goes. BodyDepth owns
the body's optical depth and its pin compares depths, not transmittances.
(c) asserts probe overhead >= 0.90 and a hard cull floor of 0.5 (ruling
wells-overhead-plus-floor); the oracle ceiling, efficiency and cull fraction
are printed. WeightBoundEnclosesOneSignedNoise pins VoidField's weight bound.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
GlslLowering.SeparateFiles is the one name-keyed rule: CultMath.Phacelle.hlsl
lowers into shaders/CultMath.Phacelle.glsl (MPL-2.0, guard
CULTMATH_PHACELLE_GLSL) and its include line leaves CultMath.glsl, which is
now MIT and says so in its provenance line. ReadShaderSource takes an
include predicate (one resolver); the C# mirror still inlines everything.
GlslMirrorTests pins both files, checks tokens in each, takes the union of
definitions and asserts cultmath_phacelle( and CultPhasor live only in the
Phacelle file. The fixture appends cultmath_iv_frustum_ball (exact) and
cultmath_iv_exp ("ulp-bounded, platform exp", platform named); the
comparison is per family, the platform family within 1 ulp with the
maximum printed. THIRD-PARTY-NOTICES lists CultMath.Phacelle.glsl, not
CultMath.glsl, as MPL-2.0.
Regenerated on Yggdrasil (Ubuntu 24.04.5, .NET 10.0.12); 286/286 green,
iv_exp within 0 ulp.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Regeneration alone (CULTMATH_WRITE_GLSL=1) on Yggdrasil at 8be32a2e: the
lowering of r3's widened iv_frustum_ball, 15 lines. The fixture does not
change. Full suite 286/286 green.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
README conflict resolved by keeping r3's Intervals bullet, then the GLSL
bullet. design.md and HlslSourceCompatibilityTests.cs merged clean.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
publish-packages.yml runs the suite in both jobs, after .NET setup on a full-depth
checkout and before any check or publish step; the three Unity release scripts run
it before the checker. A test reads each file and fails when the step is removed,
moved, or made non-fatal. The Caching Unity pin now needs a prefix declared once
whose exact tags hold the package's own manifest at the tag's version. No NUL byte
in the checker is a test. The policy records that releases run from a full clone.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
MarchTile reports a body start where the gated bound over the rest of the
grid is a positive point and appends the rest unprobed; MarchLod takes one
closed-form Beer-Lambert step there. AnalyticBodyMatchesFineMarch pins it
against the ungated field and the fixed-step product, and pins that no
(a)-(d) tile reports a body. VoidField takes a focal length; LOD-far
(Rh 4000, S 50, f 467) joins the enclosure test, which now asserts it
sampled weights in (0, 1) and at 0. The void grid ends at Rc + 6/K. The
doc derives the one shipped void (198, 50) and records the [w(z1), 1]
deviation. (c) is held to 0.90 of its probe-free ceiling.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The radius gains (|c|_1 + radius) 2^-20 in C# and both HLSL copies; the
doc's strictness claim leaves. TileBallEnclosesEveryRaySegment measures in
double over the r2 domain and seven extreme families with outward corner
flows, pins the radius two-sided, and counts misses per family. The noise
ball enclosure tests draw radii to 1e3.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The C# peer gains edit-in-place (payload and override through the public snapshot
API; collection and nested object through the held document), and the four-peer
test has Rust and Python read each edit.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The checker reads each package's tag prefix, changelog and assemblies directory
from scripts/release-packages.mjs and derives the release record from git tags.
A first release is the absence of any older tag in a checkout that holds other
tags; a malformed same-prefix tag, a checkout without tags and an unreadable
repository refuse. The measured set is every managed assembly (CLI header in
the PE bytes) tracked at the previous tag at any depth; an unbuilt one is a
break, a built assembly with no namesake is an addition.
Deleted with their branches, refusals and tests: --first-release, --api-new,
--tag-prefix, --changelog, --api-baseline-path and the workflow first-release
decision line. Any unknown option is now a usage error.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
cultnet-ts imports readSingleFileStore and cultmesh-ts imports schemaIdentityOf and SchemaConflictError, none of which cultcache-ts 0.14.0 exports. The new check builds each tagged release a declared range admits and requires every runtime name the dependent imports to be an export of it.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
readStoreBytes reports an absent store only when the read and the lstat both find nothing. Any other lstat failure is thrown, and an entry the lstat finds that is not a link is reported as appearing during the read. The manifest walk also runs a soft pushAll over every vector.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Absent writes, a store it reads is left byte for byte, and anything the reader refuses (an unreadable file, a dangling link) is refused. The readability manifest walk now runs a soft flush over every vector, so TypeScript and Rust are pinned by the same files.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
design.md "Intervals" gains the frustum-ball paragraph and the envelope-then-noise
paragraph: how a consumer composes the bound, the short-circuit, and that the warp
lives on the noise only. r1's slab saving paragraph is replaced by r2's printed
numbers per scenario. README names iv_frustum_ball and the envelope composition.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
MarchTile runs the pre-pass once per tile on cell-index ranges. It starts from
the whole grid, skips and doubles on proof, halves on maybe, and runs to the
grid's end. Every ray of the tile integrates exactly the dense cells with the
dense march's Integrate. MarchLod is the void's footprint-aware march inside the
unmasked runs. IntervalSkipHalvesEvaluations prints (a)-(d) at N in {1, 4, 8, 16}
and warp in {0, D}, the void grid (Rh x camera offset x S), and the shipped point
with three marches. It asserts transmittance agreement and skips naming
saving-2x-scenarios when (a), (c) or (e) misses its 2x contract.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Deleted: SavingField's MarchIntervals (per-ray probes, the StepMax growth cap,
probes attempted where the ball could never prove emptiness), its unconditional
three-snoise sample, and the saving test that skipped naming r1's fork.
Added, test-side only: the scenario model. FogField is Aetheria's nebula over its
gravity-well height map (Volumetric.cginc, Zone.cs, Settings.asset cited by
line): (a) height fog, (b) inside the fog, (c) the zone bowl and four wells.
SlabField is r1's slab, kept as the worst case. VoidField is the shipped cavity
with footprint octave weights. Each composes one bound from existing iv_* ops:
the envelope over the tile slice's box, its fade, and the noise ball from
iv_frustum_ball enlarged by the warp. The pointwise density is envelope-gated.
EnvelopeBoundEnclosesDensity checks 2,000 slices x 64 warped points with no
tolerance.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
