math.Span.cs adds the analytic Hessian of snoise(float3) on snoise_grad's tied kernel and the closed-form
integral of a clamped linear ramp; HLSL twins and the Unity copies follow, HessianNorm now reads the
library Hessian, the GLSL lowering gains float3x3 to mat3, and MeasureThird/ThirdConstantPinsSampled and
SpanPrimitiveTests land. SNOISE_THIRD is a placeholder (1) until MeasureThird runs; CultMath.glsl and the
fixture are not yet regenerated. Does not pass its tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
infinite.json holds 47 cases of infinite operands for cycles_power, cycles_modulo and Map Range Smooth Step, made inside Blender's kernel; only that family was regenerated. CultMath.Cycles.glsl changed by the generator alone (CULTMATH_WRITE_GLSL=1); glsl-parity.json and CultMath.glsl are byte-identical. This commit builds and its tests are expected green.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
cycles_power read b - 2 floor(0.5 b) != 0 as odd, which is NaN for b = +-inf, so a negative base got a negative result where Cycles' powf(a, +-inf) is never negative. Odd now means the remainder is exactly 1 (C#, HLSL, Unity copy). oracle.py gains the infinite family (operands made in-kernel as +-exp(100), results read through comparisons with 0) for power, modulo and Map Range Smooth Step; the infinite.json fixture and the regenerated GLSL follow in the next commit. This commit builds; InfiniteOperandsFollowBlender and CommittedGlslEqualsLowering fail until it lands.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fixtures are the oracle's output (SSE4.2 kernel, Blender 5.2.2 Linux), two runs cmp-identical; CultMath.glsl line 1 (the
Cycles function list in the generated header) carries the three new names.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fixtures and the regenerated GLSL follow in the next commit, so the tests that read the new rows
(InverseTrigonometry..., OperandStreams...) are red at this commit.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The z channel's boundary mutant survived because 0/0 reads as 0 after the clamp. mix.json follows. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Byte-identical regeneration for the other five families. CyclesOracleTests and the mirror tests pass (29 of 29).
Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Stryker's survivors in math.Cycles.cs that were not equivalent: Burn's divisor <= 0 boundary, Logarithm's
a <= 0 guard, and rgb_to_hsv's h < 0 wrap. mix.json is regenerated in a later commit, so
FamilyMatchesBlender is unchanged here and the new Burn rows are absent. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The oracle showed Cycles treats a huge exponent as integral for a negative base, so the speculative
b >= 2^31 rule is gone. CultMath.Cycles.glsl is stale at this commit (the HLSL changed), so
CommittedGlslEqualsLowering fails here; the regenerated file follows. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The film zeroes an infinite result, which had hidden both the power quirk and Compare's epsilon floor
from the fixtures (two hand mutants of the HLSL survived). The fixtures are regenerated in a later commit.
Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
A mutant of CultMath.Cycles.hlsl that changes a Cycles result the fixtures reach now fails a test on its own;
before, only the random-input mirror comparison reached the HLSL. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Written by tools/cycles-oracle/oracle.py and GlslLowering on Yggdrasil; the tool's second run was
byte-identical. CultMath.Tests passes 379 of 379 at this commit's tree. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The oracle's first fixtures showed Cycles' AVX2 kernel fuses multiply-adds and its film zeroes
non-finite results; the tool now exits 4 off the SSE4.2 kernel (CYCLES_CPU_NO_AVX2=1) and the
test skips cases Cycles cannot report. The Unity copy of CultMath.hlsl carries the new include.
Builds. Fixtures and CultMath.Cycles.glsl are still to come.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Builds. The oracle fixtures and CultMath.Cycles.glsl are still to come, so the oracle and golden tests fail here.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
oracle.py bakes each Cycles node under Blender 5.2.2 LTS (build d13f752e3b9c, refusing any other)
into float images; CyclesOracleTests holds math.cycles_* to the fixtures it writes. No fixtures
exist at this commit, so the tests fail here; builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Ports of Blender v5.2.2's intern/cycles kernel functions, one function per node
operation, with the HLSL mirror, the Unity copy, the lowering table entry for a
separate Apache-2.0 GLSL file, the golden-fixture families, the package licence
expressions and the notices section.
Builds. Does not pass yet: CultMath.Cycles.glsl and the regenerated golden
fixture arrive in a later commit, so CommittedGlslEqualsLowering and
GoldenFixtureMatchesCSharp fail at this commit.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
leaf-vectors-cs Soul-held at pass 3 (cultlib-gaps:verdict:cut-leaf-vectors-cs.s3); py-typed-leaves Soul-held at pass 2 (cultlib-gaps:verdict:cut-py-typed-leaves.s2).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The wide-count test announced map32 as 32770 pairs, which fits in 16 bits, so a
count read as its low 16 bits survived. map32 now announces 65537 pairs and
array32 65540 children; both low halves close the container early.
Builds: yes.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
leaves.py (string, boolean, bytes, int32, int64, float32, float64, any, list, array, nullable, lazy) held to the
numeric-leaves vectors. Removed: DatabaseEntryField.many, callable codecs and _resolve, the System.Object literal,
the present-nil default, the union's nil pass-through, interop.py's hand-written catalog. A float32 keeps its width
through _pack_tree. Nil is refused unless wrapped in nullable; a default fills only a slot past the payload's end.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Findings custom-formatter-bytes-walked (ruling depth-walk-covers-library-msgpack: the owner skips the walk when the definition carries a formatter; the grey 0x91 image round-trips, plain and codec stay bounded; README says so) and wide-length-unpinned (bin32/str32/ext32 of 65539 bytes and array32/map32 of more than 65535 children before a chain at and past the limit). The same tests pin the inspector refusing to recover a stamp from a past-limit payload. Not yet built.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Finding inspector-recover-unwalked: one decodeBoundedPayload (walk, then decode) serves both the stamp recovery and the preview, so a payload past the limit is never decoded by either.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Kills the survivors of the first mutation sweep (fixext2 skip, 0xc1, the fixarray/fixmap/fixstr upper bounds, map16 and map32 child counts).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The C# cases and the TS assertions are here; the vector file is written from the reference in the next commit, so the
slot-nil tests of both runtimes fail at this commit.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
checkPayloadDepth is an iterative header walk run by decodeDocumentPayload before the formatter and by
encodeDocumentPayload on the formatter's bytes; the two plain-decode inspection doors call it first. The plain
formatter's encoder depth is set above the limit so the walk decides. Tests: the C# bounds vectors, the walk's
header and scalar rules, the owner, the inspector, the legacy version inference, and the mesh network doors;
test:pack:ts denies decoder-shaped exports by enumerating the packed entries.
Builds and passes untested at this commit (verification runs on Yggdrasil next).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The packed-consumer smoke now fails if the document entry exports it, at run time and at compile time.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Held to tests/vectors/slot-nil/reads.msgpack, written by the C# reference (SlotNilVectorTests): every accepted row
rewrites to the reference's bytes, nil in an int slot is refused. 94a26431c000c0 round-trips byte-identical.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
