erik/acdream
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tools(probe): add StarsProbe to dump every SkyObject's geometry + UVs

Browse source 
Sibling of WeatherEnumerator/PesChainAudit. Walks every DayGroup in the
Dereth Region (0x13000000), prints each SkyObject (Properties bits,
TexVelocity, BeginTime/EndTime, gfx/pes ids), then dumps the underlying
GfxObj's vertices, UV ranges, and surfaces. The crucial diagnostic is
the per-GfxObj "UV range outside [0,1]" flag.

Built for Bug B (sky-investigation-handoff §"Bug B"): stars rendering as
a square in one corner of the sky. Smoking gun on first run: GfxObj
0x010015EF (OI-1 in every DayGroup, TexVelocity = 0) has UVs in
[0.398, 4.602] — meaning the texture tiles ~4× across each face, but
SkyRenderer's "CLAMP_TO_EDGE unless TexVelocity != 0" heuristic forces
clamp on it, so the whole inner dome samples edge texels except the
tiny region where UVs happen to fall in [0,1]. That tiny region is the
"square in one corner" the user observed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-04-26 22:19:28 +02:00
parent ff504e9ec1
commit 991fb9a222
2 changed files with 168 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

15
tools/StarsProbe/StarsProbe.csproj Normal file
View file

@ -0,0 +1,15 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<RootNamespace>StarsProbe</RootNamespace>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="C:\Users\erikn\source\repos\acdream\references\DatReaderWriter\DatReaderWriter\DatReaderWriter.csproj" />
</ItemGroup>
</Project>