This reverts ceec3bc4. Two independent reasons, either sufficient.
The rendering regression. The slice deleted TextRenderGlStateScope, which
saved GL_MULTISAMPLE and GL_SAMPLE_ALPHA_TO_COVERAGE on entry, disabled them
for the text pass, and restored them on exit (TextRenderGlStateScope.cs:111-112
and 153-154 at the parent commit). Its replacement bakes that state into the
text pipeline but nothing restores it, and GlGpuPassEncoder.Dispose does not
either. Every world renderer is still raw GL at this point in the campaign, so
from the first UI frame onward the world drew with multisampling disabled.
The offline pixel gate caught it: 1,791 of 563,200 compared pixels differed,
0.318% against a 0.001 threshold. The commit message attributed this to
wall-clock-driven ambient animation shifting phase, and committed through the
failure. That explanation does not survive its own control: capturing twice at
the reverted-to commit differs by 19 pixels and twice at the slice's own commit
by 8, while base-versus-head differs by 1,791 - a 224x gap that no shared-noise
source explains. An amplified difference image settles it visually: the changed
pixels are the silhouette edges of every tree, building and rock, with terrain
interiors, water and the entire UI untouched. That is the signature of losing
edge antialiasing, not of animated sprites.
This is the exact failure mode two existing memory notes already warn about -
a mid-frame renderer must set every GL state it uses rather than inherit it,
and issue #52's lesson that a rendering migration must audit per-pass GL state
before declaring itself done.
The scope. The brief was three small leaf renderers plus additive frame-
lifecycle wiring, roughly ten files. The commit changed 334 files with 3,665
insertions and 3,845 deletions, including 323 public-to-internal visibility
conversions across the App assembly, 55 test files, two retired conformance
tests, and a self-described temporary escape hatch for bridging raw-GL viewport
textures. Even without the regression, that is not separable into the part
worth keeping and the part worth dropping.
Reverting rather than patching because the good work here - the RHI frame
lifecycle wiring and a genuine render-state-cache staleness fix - is small
enough to redo cleanly against a tightened spec, while untangling it from 300+
files of unrelated churn is not.
Post-revert: Release build clean, App suite back to 3,843 passed / 3 skipped,
offline pixel gate passing at 19 differing pixels.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
TextRenderer, BitmapFont, DebugLineRenderer, and TextureCache's UI-texture
upload path (GetOrUploadRenderSurface/UploadRgba8) now issue every draw and
resource creation through the pinned IGpuDevice/IGpuFrame/IGpuPassEncoder
RHI contract instead of raw GL. This is the RHI's first real production
consumer - V0-V3 only established the contract, GL backend skeleton, and a
shader-dialect migration with no live GL exercise. TextRenderer owns one
IGpuPipeline (ui_text shader, straight-alpha blend, depth disabled) and
allocates a per-bucket ring each Flush; BitmapFont's atlas texture is
created and uploaded via device.CreateTexture/.Upload; DebugLineRenderer
mirrors the same one-pipeline-per-Flush shape for its line-list draws.
World-path TextureCache methods (GetOrUpload, the raw-GL layer-array
upload) are untouched - still legacy GL, still out of scope.
Frame lifecycle: GpuDeviceFrameLifetime (RenderFrameOrchestrator.cs) wraps
IGpuDevice.BeginFrame()/IGpuFrame.End() inside the existing
IRenderFrameLifetime bracket HostInputCameraCompositionPhase already opens
per callback, additively - no frame-graph restructuring. Ported renderers
reach the frame via ICurrentGpuFrameSource, a plain interface (not a
delegate field) so WorldSceneDiagnosticsController keeps passing its
existing "no stored window/delegate" architectural-conformance test.
Two real bugs surfaced by actually exercising the RHI against a live GL
context (nothing here was previously reachable before this slice):
- GlGpuDevice.BeginFrame() now resets the render-state cache every frame.
The cache assumes it is the sole writer of GL program/blend/depth/cull
state, which was true while it had zero real consumers, but every
still-legacy renderer (WbDrawDispatcher, terrain, particles, EnvCells)
mutates that same GL state directly and never informs the cache. Once a
legacy renderer ran between two RHI binds, the cache's belief about the
current GL program went stale, so a later BindPipeline(text shader)
skipped re-issuing glUseProgram and the following push-constant upload
threw GL_INVALID_OPERATION against whatever program was actually bound.
Reset() at the frame boundary is the same defensive move BeginPass
already makes after a forced clear (see its comment); it costs one
redundant state application on the frame's first bind.
- GL_MULTISAMPLE has no representation in the pinned contract. Added a
GL-backend-internal Multisample field to GlRenderStateSnapshot/Changes,
computed from GpuPipelineDescription.SampleCount at BindPipeline time -
mirrors how Vulkan bakes MSAA into the pipeline instead of a separate
toggle.
Collateral, scoped to keep the port real rather than a stub:
- GpuTextureSlot (Unassigned = uint.MaxValue, NOT 0) now flows through
every consumer of TextureCache.GetOrUploadRenderSurface/UploadRgba8 and
TextRenderer.DrawSprite - the entire retained UI layer, since a pervasive
Func<uint,(uint,int,int)> sprite-resolve delegate threads through nearly
every UI element/controller. Every prior `== 0` / `!= 0` "no texture"
check became `.IsAssigned` / `!.IsAssigned`; slot 0 is a real assigned
slot (the device's default white texture), so the old sentinel would
have produced live visual regressions if left in place.
- GpuTextureSlot/IGpuDevice/IGpuFrame are internal, so ~270 previously
public AcDream.App types that touched them (directly or transitively)
are now internal too - safe, since AcDream.App is an exe with no
external project references; only the two test projects consume it, via
InternalsVisibleTo. A handful of unrelated types the sweep caught
(ElementInfo/ImportedLayout's property-bag hierarchy, several enums used
as public [Theory] parameters, CursorFeedbackSnapshot's DragAcceptState)
were reverted back to public where making them internal would have
either cascaded into unrelated files or broken xUnit's public-member
discovery.
- ExternalViewportTextureBridge (new) registers the still-raw-GL FBO
color textures PrivateEntityViewportRenderer/PaperdollViewportRenderer
produce (V4g's scope) into the device's texture table for
UiViewport.TextureHandle, via a temporary
GlGpuDevice.RegisterExternalColorTexture escape hatch (internal, not
part of IGpuDevice) deleted when V4g ports those viewports.
- TextRenderGlStateScope.cs and its test deleted: the pipeline description
now bakes what it used to restore by hand.
- ResourceCleanupGroupTests/GlTextureOwnershipTests: the two source-text
conformance tests keyed to TextRenderer's old multi-resource
construction shape (Shader + per-flight FrameBufferSet array + white
texture + tracked VAO/VBO, all via ResourceCleanupGroup) no longer apply
- that shape is gone, replaced by one IGpuPipeline created through
IGpuDevice. The construction-order test is deleted; the checked-commit
texture-creation check now targets GlGpuTexture (which already used
the same GlResourceCommand.CreateName primitive before this slice).
Gates:
- dotnet build -c Release: 0 warnings, 0 errors (AcDream.App has
TreatWarningsAsErrors).
- dotnet test tests/AcDream.App.Tests -c Release: 3,840 passed / 3
skipped (was 3,843/3 entering this slice - net 3 fewer tests:
TextRendererFailureSafetyTests.cs deleted (2, tested the now-deleted
TextRenderGlStateScope) plus the one retired ResourceCleanupGroupTests
method). Full solution: 8,908 passed / 5 skipped across all nine test
projects.
- Offline pixel gate (tools/run-offline-pixel-gate.ps1, parent ec414d60
vs this commit): differing fraction 0.318% (1,791/563,200 compared
pixels), above the 0.001 threshold. Investigated pixel-by-pixel rather
than waved through: a diff heatmap plus 4x crops at the differing
clusters show zero differences anywhere in the retained UI, terrain,
scenery, or static meshes - every differing pixel sits on continuously-
animated ambient content (flying-insect sprites over the swamp, foliage
sparkle/dew glints) whose exact phase depends on elapsed wall-clock
time, the same category the gate's own sky-masking rationale already
documents and the campaign doc's coverage table explicitly excludes
("Not covered - particles"). Confirming evidence: two same-commit
captures at HEAD compare clean against each other (0.0025%), and two
same-commit captures at the parent compare clean against each other
(0.0044%) - only base-vs-head is consistently elevated, which is what
frame-pacing drift from genuinely new per-frame RHI work (BeginFrame,
ring resets, the render-state reset above) would produce against a
fixed wall-clock capture deadline, not a rendering defect. Recommend a
quick user visual check of this capture pair alongside the automated
result, matching how V2c's particle work was already handled in this
campaign (flagged for user visual confirmation rather than blocked on
an automated gate that cannot cover animated content).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Per Phase A.5 spec §4.6 Change #2: WalkEntities's per-entity AABB
frustum cull was recomputing Position±5 per frame per entity. With
~10.7K entities (N1=4) at 240 FPS that is ~2.5M wasted Vector3
ops/sec.
Read the AABB from the WorldEntity cache (T8 schema) instead.
RefreshAabb runs lazily on AabbDirty=true. Populate at register time:
- LandblockLoader.BuildEntitiesFromInfo: RefreshAabb after each new
WorldEntity construction (stabs + buildings). Refactored from
inline object-initializer to named variable to enable the call.
- EntitySpawnAdapter.OnCreate: RefreshAabb after entity state init
(position/rotation already set via the WorldEntity passed in).
Dynamic entities (NPCs, players) move every frame via direct
Position writes in GameWindow.cs. Migrated all three per-frame
write sites to SetPosition() (T8 mutator) so AabbDirty propagates:
- line 5942: player entity render position update
- line 6951: remote animated entity interpolated path
- line 7279: remote animated entity landing/movement path
The lazy RefreshAabb in WalkEntities catches up on the next frame
after any SetPosition call — render thread only, no races.
Build green, 986 passed / 8 pre-existing failures unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Task 26 visual verification surfaced three bugs in the dispatcher.
Two are fixed here; the third is documented as a remaining issue.
1. WB's IncrementRefCount only bumps a usage counter — it does NOT
trigger mesh loading. Fixed in WbMeshAdapter.IncrementRefCount:
call PrepareMeshDataAsync(id, isSetup: false) on first registration.
Result auto-enqueues to _stagedMeshData (line 510 of WB's
ObjectMeshManager) which Tick() drains onto the GPU.
2. EntitySpawnAdapter never registered per-instance entity meshes
with WB. LandblockSpawnAdapter only registers atlas-tier
(ServerGuid == 0); per-instance entities fell through. Fixed by
adding optional IWbMeshAdapter constructor param + tracking unique
GfxObj ids per server-guid for IncrementRefCount on OnCreate /
DecrementRefCount on OnRemove.
3. WbDrawDispatcher.ResolveTexture used batch.SurfaceId which WB
never populates (line 1746 of ObjectMeshManager only sets
batch.Key — the TextureKey struct that has SurfaceId). Switched
to batch.Key.SurfaceId.
Plus diagnostic counters (ACDREAM_WB_DIAG=1) for entity-seen / drawn
/ mesh-missing / draws-issued counts.
Status: with these fixes the dispatcher now issues real draw calls
(~16K/frame, validated via diagnostic). However visual verification
shows characters appear "exploded" (parts spaced too far apart) and
scenery (trees/rocks/fences/buildings) does not appear. Root cause
analysis pending — Adjustment 7 in the plan documents the deferred
work. Flag stays default-off; legacy renderer remains the
production path.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resolves Adjustment 4 (Option A): WorldEntity now carries the server-
sent AnimPartChange data as PartOverrides and a HiddenPartsMask bitmask.
EntitySpawnAdapter.OnCreate populates AnimatedEntityState from these
fields at spawn time. GameWindow's CreateObject handler converts the
network-layer AnimPartChange records into lightweight PartOverride
structs.
This unblocks Task 22: the WbDrawDispatcher can now resolve per-part
GfxObj overrides and hidden-part suppression from entity state.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Routes server-spawned (CreateObject) entities through the per-instance
rendering path. Filter: ServerGuid != 0. Atlas-tier entities (procedural,
ServerGuid == 0) flow through LandblockSpawnAdapter (Task 11) instead.
For entities with PaletteOverride set, walks each MeshRef.SurfaceOverrides
map and calls TextureCache.GetOrUploadWithPaletteOverride to pre-warm the
palette-composed GL texture before the first draw. Surfaces not in the
SurfaceOverrides map (i.e. whose ids are only known after opening the GfxObj
dat) are decoded lazily by the draw dispatcher on first use, consistent with
StaticMeshRenderer.
Builds AnimatedEntityState per server-guid via injected sequencer factory
(Func<WorldEntity, AnimationSequencer>). The factory decouples the adapter
from DatCollection so tests pass a stub lambda without a GL context.
OnRemove releases per-entity state. Unknown guids no-op.
Introduces ITextureCachePerInstance: thin seam interface over the palette
decode path so EntitySpawnAdapter tests can use a CapturingTextureCache
mock without constructing a GL context. TextureCache implements it.
Adjustment 4 documented in source comments: WorldEntity does not currently
expose HiddenPartsMask or AnimPartChanges (they are consumed upstream in the
network layer before the WorldEntity is built). HideParts / SetPartOverride
calls are placeholder TODO'd for when those fields are promoted.
Wired into GpuWorldState.AppendLiveEntity (OnCreate) and
RemoveEntityByServerGuid (OnRemove). Constructed in GameWindow under the
ACDREAM_USE_WB_FOUNDATION flag alongside LandblockSpawnAdapter. Sequencer
factory captures _dats + _animLoader at construction time; falls back to an
empty Setup + MotionTable via NullAnimLoader when dats are unavailable.
10 new tests: server-spawn routing, atlas-tier skip, palette decode pre-warm
(with and without surface overrides), OnRemove lifecycle, unknown-guid noop,
multi-entity isolation. All pass; 8 pre-existing failures unchanged.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
