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wip(assembler): M1 round 4 PARTIAL -- stopped at owner's request (GPU coil whine at night)

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Unverified mid-round state (cliff plates / horizon slab / routes in progress). Resume from here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ
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Fr0zkaandClaude Opus 5.5 committed 2026-10-09 02:12:39 +02:00
1 parent 2c20f9eaea
commit 20c6d86f0e
11 files changed
+839 -47
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Standalone/Core/src/FarShellsInternal.h
+30 -3
View File
@@ -967,11 +967,38 @@ inline void AppendFarStratumShells(const FStandaloneOwnerWorld& World,const FSta
};
const int32 Base=static_cast<int32>(NewVertices.size());
const double Xs[4]={X0,X1,X1,X0},Ys[4]={Y0,Y0,Y1,Y1};
std::array<double,4> CornerZ{};
std::array<FVector,4> CornerNormals{};
bool bValidPatch=true;
for(int32 Corner=0;Corner<4;++Corner)
{
const double Z=SurfaceZ(Xs[Corner],Ys[Corner]);
NewVertices.emplace_back(Xs[Corner]*25.0,Ys[Corner]*25.0,Z*25.0);
NewNormals.push_back(Normal);
const double PredictedZ=SurfaceZ(Xs[Corner],Ys[Corner]);
const std::vector<double> CornerCrossings=FindFarStratumCrossings(
Shape,Xs[Corner],Ys[Corner],ZMin,ZMax);
if(CornerCrossings.empty()){bValidPatch=false;break;}
CornerZ[Corner]=*std::min_element(CornerCrossings.begin(),CornerCrossings.end(),
[PredictedZ](double A,double B)
{return std::abs(A-PredictedZ)<std::abs(B-PredictedZ);});
const float CornerGX=Density(Xs[Corner]+2,Ys[Corner],CornerZ[Corner])
-Density(Xs[Corner]-2,Ys[Corner],CornerZ[Corner]);
const float CornerGY=Density(Xs[Corner],Ys[Corner]+2,CornerZ[Corner])
-Density(Xs[Corner],Ys[Corner]-2,CornerZ[Corner]);
const float CornerGZ=Density(Xs[Corner],Ys[Corner],CornerZ[Corner]+2)
-Density(Xs[Corner],Ys[Corner],CornerZ[Corner]-2);
CornerNormals[Corner]=FVector(CornerGX,CornerGY,CornerGZ);
if(CornerNormals[Corner].SizeSquared()<1.0e-8)
CornerNormals[Corner]=Normal;
else CornerNormals[Corner].Normalize();
}
// A center crossing alone cannot justify a large tangent quad: it can
// bridge air over an isolated far-LOD feature and draw as a horizon slab.
// Keep the fallback only when the source field has a matching crossing
// at every corner, and place each corner on that source crossing.
if(!bValidPatch)continue;
for(int32 Corner=0;Corner<4;++Corner)
{
NewVertices.emplace_back(Xs[Corner]*25.0,Ys[Corner]*25.0,CornerZ[Corner]*25.0);
NewNormals.push_back(CornerNormals[Corner]);
if(bHasUVs)NewUVs.emplace_back(static_cast<float>((Xs[Corner]-Origin.X)/256.0),
static_cast<float>((Ys[Corner]-Origin.Y)/256.0));
if(bHasColors)NewColors.push_back(Color);