standalone: 64 m full-detail override, detailed round tunnels, optional mesh cache -- generation itself NOT faster

ClipRadius override 3 (64 m at 25 cm). Uncached full detail 20.3 s on 8 workers (512 tiles at
~51 ms serial each should be ~3-4 s: the in-stream inefficiency is unsolved); full clipmap 170.6 s.
The 1 s / 5 s targets were met only from an on-disk mesh cache (.vfmesh, not committed) of
already-generated tiles: a revisit speed-up, not generation speed. Round tunnels gained
deterministic multi-scale wall relief and lost the larger mouth wedges (1.54% of lattice signs
changed, mean 0.20 m). Hashes stable across runs and 1 vs 6 workers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ

Standalone/Build.ps1

@@ -2,6 +2,9 @@
 param([string]$OutputName = 'VoxelForgeStandalone.exe')
 
 $ErrorActionPreference = 'Stop'
+$BuildHostProcess = Get-Process -Id $PID
+$BuildHostProcess.PriorityClass = 'BelowNormal'
+$BuildHostProcess.ProcessorAffinity = [IntPtr]0xFF00
 $Root = [IO.Path]::GetFullPath($PSScriptRoot)
 $BuildDir = Join-Path $Root 'Build'
 $BinDir = Join-Path $Root 'bin'
@@ -48,6 +51,7 @@ $RspLines = @(
     ('/I"{0}"' -f (Join-Path $Root 'Source\VoxelForge\Private')),
     ('/Fe"{0}"' -f $OutputPath)
 )
+# This build stays serial (no /MP); the daytime ceiling is four compiler processes.
 foreach ($Source in $Sources) { $RspLines += ('"{0}"' -f $Source) }
 $RspLines += @('/link','d3d11.lib','dxgi.lib','d3dcompiler.lib','user32.lib','gdi32.lib')
 [IO.File]::WriteAllLines($ResponsePath,$RspLines,[Text.UTF8Encoding]::new($false))