Docs: session log Part G + roadmap — art look locked, ambient motion shipped

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Assets/Scenes/Game.unity

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+  DriftRate: 28
+  DriftSize: 0.09
+  MeadowMoteColor: {r: 0.62, g: 0.85, b: 0.6, a: 0.35}
+  AridDustColor: {r: 0.85, g: 0.68, b: 0.45, a: 0.28}
+  CavernMoteColor: {r: 0.55, g: 0.65, b: 0.95, a: 0.33}
+  BlightSporeColor: {r: 0.72, g: 0.5, b: 0.85, a: 0.33}
+  AridWind: {x: 2.2, y: -0.15, z: 0.5}
+  SwayEnabled: 1
+  SwayRadius: 30
+  SwayAmpDeg: 1.4
+  SwayHz: 0.8
+  RustleEnabled: 1
+  RustleRadius: 1.7
+  RustleAmpDeg: 7
+  RustleHz: 9
+  RustleDecay: 2.5
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Assets/_Project/Scripts/Client/Presentation/AmbientMotionConfig.cs

@@ -0,0 +1,48 @@
+using UnityEngine;
+
+namespace ProjectM.Client
+{
+    /// <summary>
+    /// Live-tunable knobs for <see cref="AmbientMotionSystem"/> — the Phase 1.5 "world alive" ambient layer
+    /// (per-biome drift particles + idle foliage sway + walk-through rustle). Mirrors the
+    /// <see cref="WorldAtmosphereConfig"/>/<see cref="DynamicLightConfig"/> bridge idiom: a MonoBehaviour in
+    /// the gameplay scene with a static <see cref="Instance"/> the client presentation system reads (falling
+    /// back to these same defaults when absent). Pure presentation — never touches the simulation.
+    /// </summary>
+    public sealed class AmbientMotionConfig : MonoBehaviour
+    {
+        public static AmbientMotionConfig Instance;
+
+        [Header("Master")]
+        public bool Enabled = true;
+
+        [Header("Biome drift particles (emitter follows the camera; sim space stays world)")]
+        public bool DriftEnabled = true;
+        [Min(0f)] public float DriftRate = 28f;
+        [Min(0.01f)] public float DriftSize = 0.09f;
+        public Color MeadowMoteColor = new Color(0.62f, 0.85f, 0.60f, 0.35f);
+        public Color AridDustColor = new Color(0.85f, 0.68f, 0.45f, 0.28f);
+        public Color CavernMoteColor = new Color(0.55f, 0.65f, 0.95f, 0.33f);
+        public Color BlightSporeColor = new Color(0.72f, 0.50f, 0.85f, 0.33f);
+        public Vector3 AridWind = new Vector3(2.2f, -0.15f, 0.5f);
+
+        [Header("Idle foliage sway (flora prop roots within view of the camera)")]
+        public bool SwayEnabled = true;
+        [Min(1f)] public float SwayRadius = 30f;
+        [Min(0f)] public float SwayAmpDeg = 1.4f;
+        [Min(0.05f)] public float SwayHz = 0.8f;
+
+        [Header("Walk-through rustle (local player brushing flora)")]
+        public bool RustleEnabled = true;
+        [Min(0.2f)] public float RustleRadius = 1.7f;
+        [Min(0f)] public float RustleAmpDeg = 7f;
+        [Min(0.5f)] public float RustleHz = 9f;
+        [Min(0.2f)] public float RustleDecay = 2.5f;
+
+        void OnEnable() { Instance = this; }
+        void OnDisable() { if (Instance == this) Instance = null; }
+
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+        static void ResetStatics() { Instance = null; }
+    }
+}

Assets/_Project/Scripts/Client/Presentation/AmbientMotionConfig.cs.meta

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Assets/_Project/Scripts/Client/Presentation/AmbientMotionSystem.cs

@@ -0,0 +1,254 @@
+using System.Collections.Generic;
+using ProjectM.Simulation;
+using Unity.Entities;
+using Unity.NetCode;
+using Unity.Transforms;
+using UnityEngine;
+
+namespace ProjectM.Client
+{
+    /// <summary>
+    /// Client-only AMBIENT MOTION layer (Phase 1.5 "world alive" — the anti-static beat, zero netcode):
+    ///   - per-biome DRIFT particles (meadow motes / arid wind-blown dust / cavern motes / blight spores) from
+    ///     one world-space emitter that follows the camera; palette keys on camera-X region + the replicated
+    ///     per-room biome, mirroring <see cref="WorldAtmosphereSystem"/>'s switch
+    ///   - idle SWAY on the cosmetic flora prop roots near the camera (Game.unity classic layer; probed
+    ///     2026-07-09: 212 flora roots, none static-batched, LOD children follow the root)
+    ///   - walk-through RUSTLE: flora brushed by the LOCAL player (the GhostOwnerIsLocal idiom) gets an
+    ///     energy pulse that shakes and decays
+    /// Observe-only <see cref="SystemBase"/> in <see cref="PresentationSystemGroup"/>; wall-clock time is fine
+    /// (presentation). Rotations write around a cached base so the layer is lossless when toggled off.
+    /// Knobs live in <see cref="AmbientMotionConfig"/> (defaults when absent).
+    /// </summary>
+    [WorldSystemFilter(WorldSystemFilterFlags.ClientSimulation)]
+    [UpdateInGroup(typeof(PresentationSystemGroup))]
+    public partial class AmbientMotionSystem : SystemBase
+    {
+        static readonly System.Text.RegularExpressions.Regex FloraName = new System.Text.RegularExpressions.Regex(
+            "bush|grass|flower|fern|groundcover|ground_cover|wildflower|clover|reed|succulent|cactus",
+            System.Text.RegularExpressions.RegexOptions.IgnoreCase);
+
+        struct Flora
+        {
+            public Transform T;
+            public Vector3 Pos;
+            public Quaternion BaseRot;
+            public float Phase;
+            public float RustleEnergy;
+        }
+
+        readonly List<Flora> _flora = new List<Flora>(256);
+        bool _floraCached;
+        string _sceneKey;
+        Camera _cam;
+        GameObject _root;
+        ParticleSystem _drift;
+        int _biomeKey = -1;
+
+        protected override void OnDestroy()
+        {
+            RestoreFlora();
+            if (_root != null) Object.Destroy(_root);
+        }
+
+        protected override void OnUpdate()
+        {
+            var scene = UnityEngine.SceneManagement.SceneManager.GetActiveScene();
+            if (scene.name != "Game") { RestoreFlora(); _floraCached = false; return; }
+            if (_cam == null) _cam = Camera.main;
+            if (_cam == null) return;
+
+            var cfg = AmbientMotionConfig.Instance;
+            bool enabled = cfg == null || cfg.Enabled;
+            if (!enabled)
+            {
+                RestoreFlora();
+                if (_drift != null && _drift.isPlaying) _drift.Stop();
+                return;
+            }
+
+            if (!_floraCached || _sceneKey != scene.path) CacheFlora(scene);
+
+            UpdateDrift(cfg);
+            UpdateSwayAndRustle(cfg);
+        }
+
+        // ---------- flora cache ----------
+
+        void CacheFlora(UnityEngine.SceneManagement.Scene scene)
+        {
+            RestoreFlora();
+            _flora.Clear();
+            foreach (var root in scene.GetRootGameObjects())
+            {
+                if (root.name != "BaseBiome" && !root.name.StartsWith("ExpeditionBiome")) continue;
+                foreach (var t in root.GetComponentsInChildren<Transform>(false))
+                {
+                    if (!FloraName.IsMatch(t.gameObject.name)) continue;
+                    if (t.gameObject.name.Contains("LOD")) continue; // prop roots only; LOD children follow
+                    if (t.GetComponent<LODGroup>() == null && t.GetComponent<MeshRenderer>() == null) continue;
+                    var p = t.position;
+                    _flora.Add(new Flora
+                    {
+                        T = t,
+                        Pos = p,
+                        BaseRot = t.localRotation,
+                        Phase = (p.x * 12.9898f + p.z * 78.233f) % 6.2831f,
+                        RustleEnergy = 0f,
+                    });
+                }
+            }
+            _floraCached = true;
+            _sceneKey = scene.path;
+        }
+
+        void RestoreFlora()
+        {
+            for (int i = 0; i < _flora.Count; i++)
+                if (_flora[i].T != null) _flora[i].T.localRotation = _flora[i].BaseRot;
+        }
+
+        // ---------- biome drift particles ----------
+
+        void UpdateDrift(AmbientMotionConfig cfg)
+        {
+            bool driftOn = cfg == null || cfg.DriftEnabled;
+            if (!driftOn)
+            {
+                if (_drift != null && _drift.isPlaying) _drift.Stop();
+                return;
+            }
+            if (_root == null)
+            {
+                _root = new GameObject("~AmbientMotion");
+                Object.DontDestroyOnLoad(_root);
+            }
+            if (_drift == null)
+            {
+                var mat = FeedbackFx.MakeParticleMaterial("AmbientDrift");
+                _drift = FeedbackFx.MakeBurst(_root.transform, "Drift", mat, Color.white,
+                    0.09f, 0.15f, 9f, 600, gravity: 0f, shapeRadius: 1f, sizeTail: 0.9f);
+                var main = _drift.main;
+                main.simulationSpace = ParticleSystemSimulationSpace.World;
+                main.startLifetime = 9f;
+                var shape = _drift.shape;
+                shape.enabled = true;
+                shape.shapeType = ParticleSystemShapeType.Box;
+                shape.scale = new Vector3(36f, 7f, 24f);
+                var noise = _drift.noise;
+                noise.enabled = true;
+                noise.strength = 0.45f;
+                noise.frequency = 0.25f;
+                var emission = _drift.emission;
+                emission.enabled = true;
+            }
+
+            // palette key: base hub vs the replicated per-room biome (WorldAtmosphereSystem's switch shape)
+            int key = 0; // 0 = meadow/base
+            if (_cam.transform.position.x > 500f)
+            {
+                key = 1; // arid default
+                if (SystemAPI.TryGetSingleton<RunInfo>(out var ri) && ri.Lifecycle != RunLifecycle.Staging)
+                {
+                    switch (ri.CurrentBiome)
+                    {
+                        case RoomBiomeId.Meadow: key = 0; break;
+                        case RoomBiomeId.Cavern: key = 2; break;
+                        case RoomBiomeId.Blight: key = 3; break;
+                    }
+                }
+            }
+            if (key != _biomeKey)
+            {
+                _biomeKey = key;
+                var main = _drift.main;
+                main.startSize = cfg != null ? cfg.DriftSize : 0.09f;
+                Color c;
+                Vector3 wind;
+                switch (key)
+                {
+                    case 1: c = cfg != null ? cfg.AridDustColor : new Color(0.85f, 0.68f, 0.45f, 0.28f); wind = cfg != null ? cfg.AridWind : new Vector3(2.2f, -0.15f, 0.5f); break;
+                    case 2: c = cfg != null ? cfg.CavernMoteColor : new Color(0.55f, 0.65f, 0.95f, 0.33f); wind = new Vector3(0f, 0.18f, 0f); break;
+                    case 3: c = cfg != null ? cfg.BlightSporeColor : new Color(0.72f, 0.50f, 0.85f, 0.33f); wind = new Vector3(0f, 0.28f, 0f); break;
+                    default: c = cfg != null ? cfg.MeadowMoteColor : new Color(0.62f, 0.85f, 0.60f, 0.35f); wind = new Vector3(0f, 0.22f, 0f); break;
+                }
+                main.startColor = c;
+                var vel = _drift.velocityOverLifetime;
+                vel.enabled = true;
+                vel.space = ParticleSystemSimulationSpace.World;
+                vel.x = wind.x; vel.y = wind.y; vel.z = wind.z;
+                var emission = _drift.emission;
+                emission.rateOverTime = cfg != null ? cfg.DriftRate : 28f;
+            }
+            if (!_drift.isPlaying) _drift.Play();
+            // follow the camera's ground focus so the volume always blankets the view
+            var camPos = _cam.transform.position;
+            _drift.transform.position = new Vector3(camPos.x, 3.5f, camPos.z);
+        }
+
+        // ---------- sway + rustle ----------
+
+        void UpdateSwayAndRustle(AmbientMotionConfig cfg)
+        {
+            bool swayOn = cfg == null || cfg.SwayEnabled;
+            bool rustleOn = cfg == null || cfg.RustleEnabled;
+            if (!swayOn && !rustleOn) { RestoreFlora(); return; }
+
+            float swayRadius = cfg != null ? cfg.SwayRadius : 30f;
+            float swayAmp = cfg != null ? cfg.SwayAmpDeg : 1.4f;
+            float swayHz = cfg != null ? cfg.SwayHz : 0.8f;
+            float rustleRadius = cfg != null ? cfg.RustleRadius : 1.7f;
+            float rustleAmp = cfg != null ? cfg.RustleAmpDeg : 7f;
+            float rustleHz = cfg != null ? cfg.RustleHz : 9f;
+            float rustleDecay = cfg != null ? cfg.RustleDecay : 2.5f;
+
+            // local player position (rustle source); missing (menu/no ghost yet) -> far away
+            Vector3 playerPos = new Vector3(1e9f, 0f, 1e9f);
+            foreach (var lt in SystemAPI.Query<RefRO<LocalTransform>>().WithAll<GhostOwnerIsLocal, PlayerTag>())
+                playerPos = new Vector3(lt.ValueRO.Position.x, 0f, lt.ValueRO.Position.z);
+
+            float t = UnityEngine.Time.time;
+            float dt = UnityEngine.Time.deltaTime;
+            var camPos = _cam.transform.position;
+            float swayR2 = swayRadius * swayRadius;
+            float rustleR2 = rustleRadius * rustleRadius;
+
+            for (int i = 0; i < _flora.Count; i++)
+            {
+                var f = _flora[i];
+                if (f.T == null) continue;
+
+                float dxc = f.Pos.x - camPos.x, dzc = f.Pos.z - camPos.z;
+                bool nearCam = dxc * dxc + dzc * dzc < swayR2;
+
+                if (rustleOn)
+                {
+                    float dxp = f.Pos.x - playerPos.x, dzp = f.Pos.z - playerPos.z;
+                    if (dxp * dxp + dzp * dzp < rustleR2) f.RustleEnergy = 1f;
+                    else if (f.RustleEnergy > 0f) f.RustleEnergy = Mathf.Max(0f, f.RustleEnergy - rustleDecay * dt);
+                }
+
+                if (!nearCam && f.RustleEnergy <= 0f)
+                {
+                    _flora[i] = f;
+                    continue;
+                }
+
+                float ax = 0f, az = 0f;
+                if (swayOn && nearCam)
+                {
+                    ax += swayAmp * Mathf.Sin(t * swayHz * 6.2831f + f.Phase);
+                    az += swayAmp * 0.8f * Mathf.Sin(t * swayHz * 5.5f + f.Phase * 1.7f);
+                }
+                if (f.RustleEnergy > 0f)
+                {
+                    float e = f.RustleEnergy;
+                    ax += rustleAmp * e * Mathf.Sin(t * rustleHz * 6.2831f + f.Phase);
+                    az += rustleAmp * 0.7f * e * Mathf.Sin(t * rustleHz * 5.1f + f.Phase * 2.3f);
+                }
+                f.T.localRotation = f.BaseRot * Quaternion.Euler(ax, 0f, az);
+                _flora[i] = f;
+            }
+        }
+    }
+}

Assets/_Project/Scripts/Client/Presentation/AmbientMotionSystem.cs.meta

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Assets/_Project/Shaders/PixelOutline.mat

@@ -28,16 +28,16 @@ Material:
     - _Brightness: 1.1
     - _ColorLevels: 12
     - _Contrast: 1.05
-    - _DepthEdgesEnabled: 0
+    - _DepthEdgesEnabled: 1
     - _DepthThreshold: 0.08
     - _EdgeStrength: 1
-    - _MasterEnabled: 1
-    - _NormalEdgesEnabled: 0
+    - _MasterEnabled: 0
+    - _NormalEdgesEnabled: 1
     - _NormalThreshold: 1
     - _OutlineThickness: 1
-    - _PixelHeight: 200
-    - _PixelateEnabled: 0
-    - _PosterizeEnabled: 0
+    - _PixelHeight: 399.82455
+    - _PixelateEnabled: 1
+    - _PosterizeEnabled: 1
     - _Saturation: 1.35
     m_Colors:
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Docs/Vault/06_Roadmap/Iteration_2026-07_CoopHades.md

@@ -128,10 +128,12 @@ attacks/animations/effects**. Art direction deliberately UNDECIDED — lighting
 
 ### Short-term wins (asset/scene/client layer)
 
-3. **Lighting/atmosphere pass (direction-agnostic):** ambient way down, dynamic point lights on projectiles / portal /
-   pickups / braziers / ability impacts, per-biome fog + color-grade tune. Build AS IF no pixel filter (it composes on
-   top). Then the **art-look decision gate**: side-by-side screenshots pixel filter ON vs OFF over the lit scene →
-   operator locks pixel-art-3D vs dark-Synty vs both. Every later visual choice hangs off this lock.
+3. ~~Lighting/atmosphere pass~~ **DONE (2026-07-09, `414f9ff62`)** — dark ambient + DynamicLightSystem
+   (projectile/portal/node/impact-flash lights) + landmark mood lights + per-biome dark palettes; found+fixed
+   the dead Linear-fog density knob. **ART LOOK LOCKED (operator, 2026-07-09): CLEAN DARK-SYNTY — pixel filter
+   OFF** ("everything feels smoother & sharper without it"); the PixelOutline feature stays dev-toggleable (F3)
+   with `_MasterEnabled=0` shipped. Operator is open to experimenting with OTHER fullscreen/shader effects
+   later (sharpen/vignette/grade variants — backlog). Every later visual choice keys off clean dark-Synty.
 4. **Ambient motion layer (client-only, zero netcode):** foliage sway/rustle on walk-through, per-biome dust/embers/fog
    drift particles, critters that scatter, flags/banners. Biggest bang-per-effort for "not static".
 5. **Breakable clutter with drops:** Hades-style urns/crates/Blight growths seeded per room; shatter on hit → small

Docs/Vault/07_Sessions/2026/2026-07-09_B4d_Tail_Collision_Grounding.md

@@ -167,13 +167,35 @@ Dark-ambient dynamic-light-first look (roadmap 1.5 #3), built filter-agnostic:
   impact flashes observed), fog/ambient values confirmed live in Play, 466/466, console clean.
 - **Art-look gate material committed:** `Assets/Screenshots/artlook_{base,room}_pixel{ON,OFF}.png`.
 
+## Part G — ART LOOK LOCKED + ambient motion layer shipped (`90d4bed38`)
+
+**Operator locked the art look: CLEAN DARK-SYNTY — pixel filter OFF** ("everything feels smoother & sharper
+without it, even if mostly placebo"); open to OTHER shader/visual-tuning experiments later (backlog:
+sharpen/vignette/grade variants on the same fullscreen feature). `_MasterEnabled=0` saved on the material
+(F3 dev panel stays). Collisions signed off ("collisions are fine now").
+
+**Ambient motion layer** (roadmap 1.5 #4, `AmbientMotionSystem` + config): per-biome drift particles from a
+camera-following world-space emitter (meadow motes / arid dust / cavern motes / blight spores — palette keyed
+like WorldAtmosphereSystem) · idle sway on ACTIVE flora prop roots near the camera · walk-through rustle
+(local-player proximity → decaying energy shake). Rotations write around a cached base → lossless toggle.
+Verified live: palettes exact on region cross, flora beside the player rocked (0,0)→(−4.0°,+5.0°), 466/466,
+console clean.
+
+**Discoveries this round:**
+- **The BASE biome's flora is authored INACTIVE** (84 bush renderers etc. — the meadow hub has NO active
+  sway targets and reads barren). Re-enabling a curated set is a cheap "world alive" win — operator call.
+- A mid-play session lost its netcode worlds while unfocused (the known unfocused-editor hazard —
+  tick-batching warning then zero worlds; game keeps rendering as a zombie). Restart cured; not slice-related.
+- Unity 6.5: `Scene.handle` int conversions are deprecated-as-error (key caches on `scene.path`); bare
+  `Time` in a `SystemBase` binds to the deprecated ECS `ComponentSystemBase.Time` (qualify `UnityEngine.Time`).
+
 ## Next-session intent
 
-**OPERATOR GATE: lock the art look** from the artlook_* side-by-sides (pixel-art-3D vs clean dark-Synty vs
-keep-both-toggle) — every later visual choice hangs off this. Then Phase 1.5 continues: ambient-motion layer →
-breakable clutter → attack distinctness. Feel-lap items still pending operator eyes: refit walls/cover/85 prop
-colliders + solid craters call + atmosphere value taste (arid rooms read bright-tan — all knobs live) + the B5
-split-panels smoke.
+Phase 1.5 continues under the LOCKED clean dark-Synty look: **breakable clutter with drops** (Hades-style
+urns/growths — destructible-ghost + pickup patterns, netcode-cheap) → attack distinctness. Also queued:
+re-enable curated base flora (barren hub) · retune arid brightness to taste (all knobs live) · long-term 1.5
+items (hazards, destructible cover) need the adversarial design review first. Feel items for the operator's
+next lap: ambient motion + dark look in motion, craters-as-blocks call, B5 split-panels smoke.
 
 Related: [[Iteration_2026-07_CoopHades]] · [[2026-07-07_Workflow_Consolidation]] ·
 [[2026-07-07_Expedition_Enemy_Stuck_Harvest_Feedback]]