Pins that height rows built from math.phacelle (the C# mirror of cultmath_phacelle) are bit-identical
whatever order the rows are generated in, for a ring-buffer terrain. Golden fixture untouched.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Exact-case counts move: cycles_arcsine 154 -> 155 and cycles_arctan2 6 -> 7 on both routes; worst u1 and result hashes unchanged.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The glsl-parity.json header gains recorded_on (generator writes it; goldens untouched). CyclesOracleTests allows
cycles_arcsine, cycles_arccosine and cycles_arctan2 (glsl-parity families 95-97) 1 ulp from Blender, with the measured
cases named; a test pins the cap at 1 ulp, the three names, and that a 2 ulp miss still fails.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Recorded on Yggdrasil under llvmpipe (LLVM 20.1.2) with
packages/cultmath/tools/device/run-lavapipe.sh, WRITE_BOUNDS=1, at 990521b3.
Adds the lavapipe-glsl and lavapipe-hlsl rows for cultmath_fbm only. The
cycles_arcsine/arctan2 rows are left as committed (pre-existing asin/atan
oracle failures at base 94f20eee are out of scope).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
max singular value of the (cosine, sine) Jacobian <= max(10, 1.25 |side|) / (1 - normalization)
for normalization in [0, 0.9], |side| in [0.25, 25]; method and tightness in design.md.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
math.fbm(p, octaves, lacunarity, gain) and math.fbm(p) (four octaves, lacunarity 2, gain 0.5);
cultmath_fbm in the shaders, the GLSL regenerated by GlslLowering, a golden-fixture family
appended, FbmTests for the rules.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
SPIRV-Cross renames members matching GLSL builtins, so the source names change. Resolver and JSON writer accessors follow the members; the wire (positional MessagePack, JSON keys) is untouched in this commit. The committed GLSL is stale until its regeneration commit, so CommittedGlslEqualsLowering fails here.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
CULTMATH_MAX_SITES defaults to 128 under #ifndef. The consumer-written ring-loop and border-loop comment recipes are deleted. The C# mirror takes the array as T[]; the span twins live in SiteArrays; the GLSL lowering keeps the capacity macro; gen.py learns the array leaf; the smooth-step family gains its cap-point draw; CULTMATH_WRITE_GLSL refuses non-Linux.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Findings max-ring-unpinned and the tie-le survivor; also the spec's F1-swap and F2 continuity checks.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Findings normal-not-unit-breaks-exit and refusals-misnamed: a tiny or huge normal acts as its direction, cellSize and the body span are refused under their own names, and a drift times time product that overflows is refused up front.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Recorded by run-lavapipe.sh WRITE_BOUNDS=1 on Yggdrasil; the repeat run in the same job judged the file green and
produced the same all-outputs hash (46e0c8e0...).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Per verdict s1: the judge keeps the fixture tolerance as correctness and adds a recorded sha256 of each family's
result per route (a change in the computation fails until re-recorded); a test refuses mediump/lowp/precision
other than highp and min16float/min10float/min16int/half in the committed shaders; phacelle's tolerance text states
a device clause (2^-18) that the judge parses and enforces. The committed bounds file lacks the new column until
the next WRITE_BOUNDS=1 job, so this commit's device run fails and it does not pass DeviceResultsHoldFixture.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Only the trophic families after the inserted segment families change; every family before them is identical.
Builds; the parent commit does not pass CommittedGlslEqualsLowering.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Shader overloads stay native (ruling shader-overloads-stay-native): cultmath_segment_closest and
cultmath_distance_to_segment have float2 and float3 forms again, with mirror asserts and fixture families.
The rejected "avoid overloads" comment and design text are gone. The border step's outside-cell behaviour
(distance 0 with that plane's normal) is documented in C# and the HLSL header and pinned by a test; the mirror
and fixture gain distinct sites closer than 1e-2. GLSL and fixture regenerate in the next commit; this one does
not pass CommittedGlslEqualsLowering.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
tools/device/gen.py spells one HLSL and one GLSL ES 3.10 compute shader per work
item, vkrun.c dispatches it on the first Vulkan device, run-lavapipe.sh runs the
whole conforming job. None of them compares. Also fixes the metric test's family
choice. Not yet run: these may not build or run.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
GlslMirrorTests becomes partial; GlslMirrorTests.Device.cs holds WriteDeviceWork
(the work list, with reference families for the four sampled-form families) and
DeviceResultsHoldFixture (exact, check, sampled-form and recorded-bound judging),
plus simulated-device tests for each rule. Not yet built or run: this commit may
not build.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The earlier version read past a one-element array and passed under the mutant by hitting a non-finite site.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
power_border_step/power_border give the exact distance to the owner's power cell boundary: the least radical-plane
distance over every other site, built from the offset and (w1-w2)(w1+w2) so it does not cancel. site_cells_border is
documented as the two-winner bisector distance. Cell spans refuse non-finite positions, queries and spans over 2^24.
segment_closest is public in C#; the HLSL segment functions are 3D only (no new overload sets). Tests added.
Does not build the GLSL checks: CultMath.glsl and glsl-parity.json are regenerated in the next commit.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Regenerated with CULTMATH_WRITE_GLSL=1 on Yggdrasil; the fixture adds seven families and deletes no line.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
CommittedGlslEqualsLowering and GoldenFixtureMatchesCSharp fail at this commit until the next one regenerates the GLSL and the fixture.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
CommittedGlslEqualsLowering fails at this commit until the GLSL is regenerated in the next one.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
