No description
Find a file
beezm b1cf282295 Phase 1: shaded relief and the Hispaniola palette — the grin gate
Presentation only. Nothing here touches Topography, the noise, or any generation
constant; the renderer is handed a height field LOADED from a .f32 dump and has no
way to produce one, so a look change provably cannot move the terrain.

Hillshade: Horn 3x3, cell size 1, edges clamped (never wrapped — the Trench border
is a wall, not a seam). ZExaggeration is required rather than optional: measured
median land slope is 0.22 degrees unexaggerated, so the island shades as a flat
plane. Chosen from a measured slope table — zex 75 gives 16/28/37 deg at land
median/p90/p99, which reads as natural relief. It is a look dial; raw units are not
metres and no code may read it as if they were.

Palette: stops placed on the MEASURED height distribution, not spread linearly.
Land is bottom-heavy (median 0.456, p99 1.113, max 1.415 over 8.6M land columns
across four seeds), so a linear ramp would spend 99% of its range on 1% of the land
and the map would read as green with a few white dots. Bathymetry is compressed by
d/(d+0.35) so the shallow shelf gets the range and the featureless abyss flattens.
Anchors are absolute and fixed across the batch — a map coloured on its own min/max
cannot be compared with its neighbour, and comparison is the point of a batch.

Blend: the naive tint x hillshade darkens everything by 29% before any slope is
involved, because flat ground shades to sin(altitude). So shade is normalized by
its flat-ground value first — flat terrain keeps its true tint and only SLOPE moves
the colour — then shadows multiply while highlights screen toward white. That
asymmetry is the difference between a colour ramp and a map you would frame.

Relief fades to zero with depth below sea. Not only taste: the deep floor is the
Trench, a synthetic wall whose gradient is ~1.5x the p99 land gradient, so shading
it faithfully draws a bright rim around the map and lights the abyss with noise
mottle. The fade puts relief on the near-shore shelf where the bathymetry is real.

Three named looks (atlas / relief / dusk), gated like any other change and kept
deliberately few — iteration fatigue on a subjective gate is a real failure mode.
Each pair isolates one question.

HeightMapRenderer.cs is retired: its raw I/O moved to HeightField.cs and its ramp
to ReliefPalette.cs, so there is one palette everywhere and the generator's own
quick-look is coloured identically to a beauty render.

No biome words, no classification, no water. The 0.15 line is a colour boundary.
2026-08-19 21:58:44 -04:00
Client Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
Core Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
Server Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
Tools Phase 1: shaded relief and the Hispaniola palette — the grin gate 2026-08-19 21:58:44 -04:00
.gitattributes Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
.gitignore Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
islaApocalypse-v2.csproj Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
islaApocalypse-v2.sln Phase 0: clean project skeleton for the v2 rewrite 2026-08-19 20:21:12 -04:00
project.godot Move the user:// isolation warning out of project.godot 2026-08-19 21:31:12 -04:00
README.md Move the user:// isolation warning out of project.godot 2026-08-19 21:31:12 -04:00

Isla Apocalypse — v2

The rewrite (D-049). A post-apocalyptic survival voxel game: one island, generated once offline, loaded by everyone.

Status: Phase 0 — foundation. This repo is a skeleton. It builds, it resolves its own runtime directory, and it carries the two data contracts and the tooling rails. It generates nothing.


⚠ Two repos. Never one.

Repo Role
~/celerNexus/islaApocalypse-v2/ (this) The rewrite. Every line of new code is written here.
~/celerNexus/islaApocalypse/ READ-ONLY. The pre-rewrite prototype, archived at ab78883, tag pre-rewrite-reference. Ported FROM; never written to.
~/celerNexus/islaApocalypse-vault-v0.1/ The design vault — the source of truth for WHAT and WHY. The vault leads.

The old codebase is a spent quarry (D-050): mined, never tracked, never synced, never canon'd. Writing rewrite code into it would corrupt the very thing being ported from.

⚠ Runtime data isolation — do not weaken

This project pins its user:// directory away from the old prototype's, which holds the preserved reference seeds, blueprints and batches:

user:// → ~/.local/share/islaApocalypse-v2/          ← this project
          ~/.local/share/godot/app_userdata/islaApocalypse/   ← ⛔ the OLD prototype. Never touch.

Pinned two ways in project.godot — a distinct application/config/name and use_custom_user_dir + custom_user_dir_name. Both must stay.

⚠ Do not document this with a comment in project.godot — it will not survive.

Godot rewrites project.godot on import and STRIPS ALL COMMENTS, replacing the header with its own boilerplate. (Measured: a warning block written there was gone after the next --import. The settings survived; only the explanation was deleted.) So the warning lives here, and the guarantee is enforced by the probe below — which exits non-zero on a clash and therefore works in a pre-flight check, not just by eye.

After any change to the [application] block, re-run the probe:

Godot_v4.7.2-stable_mono_linux.x86_64 --headless \
  --path ~/celerNexus/islaApocalypse-v2 res://Tools/Scenes/UserDirProbe.tscn

Layout

Core/     math + data only, ENGINE-FREE   — depends on nothing above it
Server/   authoritative logic             — may use Core          (empty: Phase 0)
Client/   rendering                       — may use Core          (empty: Phase 0)
Tools/    the offline generator           — ⚠ may NOT use Client  (Phase 1 fills it)

Each layer has a README.md stating its role and its boundary. Read the one for the layer you are about to write in — they carry the reasons, not just the rules.

The contracts this phase establishes

  • ★★ The column model (D-053) — the world as a 2D grid of columns, each a stack of (material, thickness) runs. Air is the top run; there is no air-vs-solid height branch.Core/Scripts/Column.cs
  • The material schemas (D-054) — terrain and building, two schemas bridged by a transformation seam that is deliberately empty. Identity is a registry key, never an ordinal. Mesh style is per-origin, never a material property. → Core/Scripts/MaterialRegistry.cs
  • The scaling discipline — nothing uses a raw pixel number. → Core/Scripts/GenerationScale.cs
  • Tooling safety — every path env-overridable, deletion refused by code. → Core/Scripts/ToolingPaths.cs, Core/Scripts/FileSafety.cs

Build

dotnet build
Godot_v4.7.2-stable_mono_linux.x86_64 --headless --import --path .

Godot 4.7.2 (mono) · .NET 8 (net8.0) · Godot.NET.Sdk/4.7.2

The reference repo is Godot 4.7.1. This repo deliberately targets 4.7.2 — clean rewrite, current tooling. 4.7.1 is the port source, not a constraint on new code.

What this phase is NOT

No generation, no mesher, no stratigraphy, no biomes, no water, no algorithms of any kind. The pipeline is 2D-maps-first (D-056): stages 15 are flat maps, gotten completely right before a single 3D vertex exists. Building the mesher before the data is right is the specific trap this rewrite exists to undo.