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Modern open-source C# .NET 10 Asheron's Call client. Faithful port of retail client behaviour to Silk.NET with a plugin API.
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Erik 2802fb2151 sky(phase-4b): clamp sky vTint at vertex + 1.0 fragment cap for retail parity 
After Phase 4 landed the per-vertex lighting formula, user observed
acdream was still "a bit too bright" vs retail. Root cause:

- My Phase 4 shader deliberately left vTint unclamped so D3D-style
  overbright contributions to emissive meshes (dome has Emissive=1 → lit
  could reach 2.0 with ambient + sun) would clamp naturally at the
  framebuffer.
- But the frag cap was 1.2 (leaving "headroom for lightning flash"),
  letting dome vertices run 20% hotter than retail's per-channel 1.0.

Retail's D3D fixed-function pipeline clamps vertex lit colour at
D3DRS_COLORCLAMP=1 (default) BEFORE texture modulation. We now match:
- Clamp `vTint = clamp(lit, 0, 1)` in sky.vert so the saturate happens
  at the vertex stage, exactly like D3D.
- Drop normal-frame frag cap from 1.2 → 1.0 (the 3.0 flash relaxation
  stays so lightning strobes still visibly blow out).

Expected visual:
- Dome: identical appearance (was clamping to framebuffer 1.0 anyway),
  but pure retail-spec rendering so no sneaky 20% headroom.
- Clouds: unchanged (already < 1.0 at morning Rainy keyframe).
- Fragment flash during storm: unchanged — cap relaxes to 3.0 on flash.

Build + 733 tests green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-24 10:41:58 +02:00
docs sky(phase-3g): fix LCG multiplier — 360 (DaysPerYear), not 7620 2026-04-24 10:17:38 +02:00
memory docs(memory): session 2026-04-19 handoff — remote motion port complete 2026-04-19 21:33:12 +02:00
src sky(phase-4b): clamp sky vTint at vertex + 1.0 fragment cap for retail parity 2026-04-24 10:41:58 +02:00
tests sky(phase-3e): drive WeatherSystem from DayGroup name — no more rogue rain 2026-04-24 09:32:27 +02:00
tools sky(phase-3g): fix LCG multiplier — 360 (DaysPerYear), not 7620 2026-04-24 10:17:38 +02:00
.gitignore chore: gitignore launch.log 2026-04-18 23:11:56 +02:00
AcDream.slnx sky(phase-3g): fix LCG multiplier — 360 (DaysPerYear), not 7620 2026-04-24 10:17:38 +02:00
CLAUDE.md docs(claude.md): add 'Running the client against the live server' section 2026-04-19 14:58:13 +02:00
README.md chore: phase 0 — skeleton + dat asset inventory 2026-04-10 09:02:56 +02:00

README.md

acdream

Experimental modern open-source Asheron's Call client in C# / .NET 10.

Status: pre-alpha, not playable. Phase 0 only — dat file asset inventory.

Stack: .NET 10, Chorizite.DatReaderWriter for dat parsing. Silk.NET + Avalonia planned for rendering/UI (not yet wired up).

Requires: A retail Asheron's Call install (Turbine/Microsoft property — supply your own). Set ACDREAM_DAT_DIR environment variable to the directory containing client_portal.dat, client_cell_1.dat, client_highres.dat, and client_local_English.dat, or pass it as the first CLI argument.

Layout

  • src/AcDream.Cli/ — console app that dumps asset counts from a dat directory
  • references/ — local read-only reference material (ACE, ACViewer, WorldBuilder, DatReaderWriter, holtburger, retail AC install). Gitignored.

Run

dotnet run --project src/AcDream.Cli -- "C:\path\to\Asheron's Call"

Or set ACDREAM_DAT_DIR and run without args.