RND — Rendering and Graphics

Цель

Воспроизвести визуальные правила WoW 3.3.5a и дать opt-in улучшения, сохранив frame pacing на больших мирах Godot.

RND-1. Renderer architecture

WorldRenderFacade принимает focus, environment snapshot и entity presentation commands.
StreamingTargetPlanner вычисляет desired state без Node creation.
RenderBudgetScheduler ограничивает main-thread finalize по типам операций.
Terrain, M2, WMO, liquid, sky, character, effects и debug overlays — отдельные services.
RenderingServer/RIDs применяются только там, где profiler доказал overhead scene tree.
Ownership каждого RID и cache entry документируется; world unload проверяет leaks.

RND-2. World streaming

WDT-driven tile catalog, priority по position/direction/velocity/camera frustum.
Prewarm, retain и hysteresis исключают churn на ADT boundaries.
Separate budgets для I/O, parse, mesh/material load, main-thread attach и eviction.
Cold/warm cache scenarios, teleport, rapid flight и camera rotation stress.
Cancellation stale jobs при teleport/map change.
Streaming focus не обязан быть Camera3D: player, spectator, editor viewport, capture tool.

RND-3. Terrain

Точная 145-vertex MCNK topology, holes, normals и coordinate seams.
Texture layer order, MCAL alpha variants, animation flags, repeat и mip behavior.
Control-splat/array implementation как Godot optimization с fidelity tests.
WDL/distant terrain и hierarchical LOD.
Terrain collision/query representation отдельно от visual mesh.
Editing path: sculpt, smooth, flatten, holes, texture paint, seam repair и rebake.

RND-4. M2

Static geometry, SKIN batches, blend modes, flags, UV transforms и texture lookup.
Native pivot-based skeletal animation, bone palettes, global sequences и animation lookup.
Billboards, attachments, key bones, events, cameras и bounding volumes.
Particles, ribbons, texture animation и material combiners.
Static doodads группировать spatial MultiMesh cells; animated/interactive entities не смешивать со static batching.
MultiMesh buffer updates выполнять батчем; cell size выбирать по culling, а не только draw-call minimum.

RND-5. WMO

Root/group materials, batches, vertex colors, multiple UV sets и doodad sets.
Portals/rooms, indoor/outdoor, BSP/collision, fog и group visibility.
MLIQ, skybox, lights и ambient color semantics.
Lightweight render cache для больших WMO и incremental group attach.
Editor tools для group/portal/doodad validation.

RND-6. Characters and creatures

Race/gender/customization from DBC.
Geosets, skin regions, hair/facial features и composited textures.
Equipment component models/textures, attachment points, sheath, enchant visuals.
Animation state resolver: locomotion, combat, casting, emotes, death, swim, mount, vehicle.
CreatureDisplayInfo/Extra/ModelData, NPC equipment, pets и shapeshift.
Character preview uses same presenter as world runtime.

RND-7. Liquids

MH2O/MCLQ layers, existence masks, heights, depth и liquid type.
Отдельные profiles water/ocean/magma/slime.
Blizzlike material: texture animation, alpha, lighting и fog behavior.
Enhanced material: normals, reflections, depth/shore blending — opt-in.
Liquid collision/swim state принадлежит gameplay/physics query, не shader.

RND-8. Environment

DBC-driven Light/LightParams/LightIntBand/LightFloatBand interpolation.
Server time, day/night, zone/subzone transitions.
Skyboxes, fog, ambient/directional light, weather visual state.
Blizzlike cheap shadow policy; enhanced selective character/object shadows отдельно.
Camera far plane, fog и streaming distances согласованы профилем.

RND-9. Effects and presentation

SpellVisual/SpellVisualKit-driven cast/impact/aura effects.
Projectiles, decals, dynamic objects, combat text и selection circles.
Weather particles и world emitters.
Cinematic/model cameras и loading transitions.
Effects have pooling, lifetime, visibility и per-frame budgets.

RND-10. Graphical extensions

Higher-resolution content overlays без модификации originals.
Anisotropy, extended draw distance, improved water/shadows, post-processing и upscaling.
Optional PBR approximation only when it does not replace Blizzlike material profile.
Graphics settings expose measurable cost and fallback.
Editor comparison viewport: Blizzlike/Enhanced side-by-side, screenshot и metric capture.

Verification

Paired checkpoints с original 3.3.5a по position/time/weather/camera.
Material/animation fixtures from independent references.
Perceptual diff плюс human approval для intentional deviations.
p50/p95/p99, max hitch, draw calls, visible objects, GPU/CPU memory и RID leak checks.
D3D12/Vulkan and quality profile matrix.

Gate

Видимый мир не деградирует при декомпозиции; under-foot/near-field quality готова до появления в кадре; long traversal не создаёт recurring hitches/leaks; Enhanced всегда отключаем.

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