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Add portable radial cosine field source

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This commit is contained in:
Meta Vens 2026-07-15 23:37:10 +01:00
commit c5a4a75c1b
5 changed files with 11 additions and 2 deletions
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2
plugins/eve-plugin-fields/GameCult.Eve.PluginFields.csproj
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@ -6,7 +6,7 @@
<Description>Runtime-neutral C# contracts for gamecult.fields documents.</Description>
<CultLibRoot Condition="'$(CultLibRoot)' == ''">$(MSBuildThisFileDirectory)..\..\..\CultLib</CultLibRoot>
<PackageId>GameCult.Eve.PluginFields</PackageId>
<Version>0.2.2</Version>
<Version>0.2.3</Version>
</PropertyGroup>
<ItemGroup>

1
plugins/eve-plugin-fields/test/plugin.test.mjs
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@ -50,6 +50,7 @@ test("publishes a runtime-neutral Unity contract package", () => {
assert.match(contracts, /interface IEveFieldsSplatsDocument/);
assert.match(contracts, /gamecult\.fields\.splats\.v1/);
assert.match(contracts, /AnimatedCellNoiseB = 3/);
assert.match(contracts, /AnimatedRadialCosine = 4/);
assert.match(contracts, /AbsoluteValue = 1/);
assert.doesNotMatch(contracts, /UnityEngine|Aetheria|MessagePack|GameCult\.Caching/);
assert.match(readFileSync(new URL("../GameCult.Eve.PluginFields.csproj", import.meta.url), "utf8"), /netstandard2\.1/);

7
plugins/eve-plugin-fields/unity/org.gamecult.eve.plugin-fields/README.md
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@ -19,3 +19,10 @@ distance metric is `(length(frac(p) - .5) * 1.5 + .25) *
max(abs(x) * .866 + y * .5, -y)`. `AbsoluteValue` folds a signed source after
sampling. Constant offsets remain ordinary constant splats, so source sampling
and additive composition retain separate ownership.
`AnimatedRadialCosine` is splat-local rather than field-world anchored. It
evaluates
`cos(pow(distance01, FrequencyY) * FrequencyX + PhaseX + simulationTimeSeconds * AnimationSpeed)`.
`FrequencyX` is radial frequency and `FrequencyY` is the positive radial
exponent. The ordinary splat falloff owns the envelope, which keeps oscillation
and compact support independently composable.

1
plugins/eve-plugin-fields/unity/org.gamecult.eve.plugin-fields/Runtime/EveFieldsContracts.cs
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@ -44,6 +44,7 @@ namespace GameCult.Eve.PluginFields
public const int SimplexNoise = 1;
public const int AnimatedSimplexNoise = 2;
public const int AnimatedCellNoiseB = 3;
public const int AnimatedRadialCosine = 4;
}
public static class EveFieldsSplatSourceFlags

2
plugins/eve-plugin-fields/unity/org.gamecult.eve.plugin-fields/package.json
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@ -1,6 +1,6 @@
{
"name": "org.gamecult.eve.plugin-fields",
"version": "0.2.2",
"version": "0.2.3",
"displayName": "Eve Fields Plugin Contracts",
"description": "Runtime-neutral C# contracts for gamecult.fields documents.",
"unity": "2021.3",