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wip(L25, side branch): FI helix enclosed in a 13 m rock root; support never created in open air

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Fixes the L24 ribbon (owner request). NOT merged: the open-air support gate leaves ~4,000 unsupported
samples on every SurfaceWorld-recipe passage style (TN -> SW), a walkability regression. L26 fixes that
on this branch. See Linux25/REPORT.md.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CSFYgsdW8ejZSyiMf4qRSX
This commit is contained in:
Fr0zkaandClaude Opus 5.5 committed 2026-10-21 00:38:57 +02:00
1 parent cb9236c265
commit ef789aaa00
14 files changed
+662 -110
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Standalone/Core/src/FloatingIslandsInternal.h
+5 -3
View File
@@ -281,7 +281,7 @@ namespace floating_island_detail
? recipe.ownerVoxelSizeMicrons / ScaleGcd : 0;
const std::uint32_t ExpectedDenominator = ScaleGcd > 0
? recipe.coreVoxelSizeMicrons / ScaleGcd : 0;
if (recipe.schemaVersion != 1 || recipe.geometryVersion < 1 || recipe.geometryVersion > 5
if (recipe.schemaVersion != 1 || recipe.geometryVersion < 1 || recipe.geometryVersion > 7
|| (recipe.geometryVersion == 1
&& (recipe.crustDepthBonusQ16 != 0 || recipe.rootDepthRatioQ16 != 0))
|| recipe.unitsPerVoxel != Q
@@ -756,7 +756,9 @@ namespace floating_island_detail
if (recipe.geometryVersion >= 5 && island.ordinal == recipe.anchorIslandOrdinal
&& recipe.anchorRootBottomZSubvoxels < island.bottomZSubvoxels)
{
const double rootTop = static_cast<double>(island.bottomZSubvoxels);
// The central buttress must meet the island crust underside. IslandBottom
// also includes the four shorter root lobes and sits below that surface.
const double rootTop = static_cast<double>(IslandCrustBottom(recipe, island));
const double rootBottom = static_cast<double>(recipe.anchorRootBottomZSubvoxels);
const double depth = std::max(1.0, rootTop - rootBottom);
const double blend = std::clamp(static_cast<double>(recipe.anchorRootRadiusSubvoxels)
@@ -1330,7 +1332,7 @@ std::optional<FloatingIslandManifestV1> FloatingIslandManifestV1::FromJson(
manifest.recipe.anchorRootBottomZSubvoxels)
||!floating_island_detail::ReadInteger(recipeValue.Get("anchor_mouth_offset_q"),
manifest.recipe.anchorMouthOffsetSubvoxels))
{error="floating-island geometry version 5 is missing a passage-rooted anchor field";return std::nullopt;}
{error="floating-island geometry version 7 is missing a passage-rooted anchor field";return std::nullopt;}
}
if (!floating_island_detail::ReadU32(root.Get("schema_version"), schema)
|| !floating_island_detail::ReadHash(root.Get("content_hash"), manifestHash)