The aircraft's ground shadow is drawn with the Xenos CONSTANT_ALPHA blend factors, which dfd8b92a routed to D3D12's ALPHA_FACTOR family, an OPTIONAL feature that must be checked via OPTIONS13::AlphaBlendFactorSupported first. We never checked, so on a device reporting false the shadow's pipeline is rejected and, being indistinguishable from one still compiling, its draw is dropped from every frame in silence. Now the capability is queried, and where it is absent the pixel shader carries the blend constant's alpha in its alpha output so INV_SRC_ALPHA reproduces the same blend exactly.
Any fatal event now writes one self-contained crash-<timestamp>.txt -
guest call stack, registers, a guest-versus-host verdict on the faulting
address, modules and the log tail naming rex_sub_* frames with no symbols.
The water shader's wave-normal lookup sits inside control flow this translator
generates from the guest's predication and jumps, where DXBC derivatives are
undefined: the gradient collapses to zero along the ocean mesh's seams, the LOD
clamps to the finest mip, and grazing Fresnel amplifies that into a bright line.
Computing the gradients in the prologue, where the quad is uniform, restores them.
Hide the free cursor after idle (ac6_cursor_hide_seconds, 3 s)
The free cursor now disappears after N seconds without motion and
returns instantly on motion or a button. Never hides while an overlay
is on screen (new DialogsVisible presence flag). Default 3 s, 0 = never, live.
The game ships 2x the terrain height samples it ever draws; its terrain
vertex shader is fully data-driven, so a synthetic full-density ring table
(vertex fetch constant 95 redirect) plus a matching fan emission make the
unmodified shader express every sample - no more terrain cracks ("rifts"),
true river beds.
Config presets now run after the toml loads: the ac6_fix_* switches and
their scale gates finally honor user settings. The settings save persists
only user-set values, with toml escaping - no leaked presets, and a saved
Windows path can no longer void the whole config. Runtime-forced values
(performance mode) can no longer overwrite the user's saved choices.
Menu: wrapped tooltips, "(set by <cvar>)" on driven entries, a developer
toggle; AC6-added cvars grouped under the AC6 node as AC6/Fixes and
AC6/Enhancements, with true restart/live lifecycles.
The game now mounts straight from a .iso beside the exe (selected by
title id; the assets folder still wins, and loose files layer over the
image so mods need no extraction), and DLC mounts straight from raw
STFS containers in a dlc folder, any layout, title updates ignored.
Disc image device ported from Xenia (BSD); one log line per source.
Interacting with the overlays also drove the game (clicks fired
weapons, scroll cycled them, keys leaked), and hovering one silenced a real
pad. Input now follows window-manager rules, mouse to the window under the
cursor, keyboard to the focused window, real pads never suppressed, via
ImGui capture flags conjoined with overlay visibility, published as atomics.
The cutscene DoF chain is authored for the 640×360 guest grid; at render scale > 1 its guest-granular blur kernels alias against host-granular content, visible as streaks and ghost outlines. Fix: snap the two CoC pre-blur passes to guest texel centers and densify the two 13-tap gather passes per axis. Hash-allowlisted, behind ac6_fix_dof (on), inert at 1x.
ac6_widescreen = true (default false), renders missions at the window's aspect ratio (hor+) by patching the game's per-camera aspect data, so FOV, culling and every camera follow. Menus, hangar, briefing and FMV revert to 16:9 and letterbox. The HUD is pre-squeezed at draw time to stay crisp, and marker art is squared without moving the aim points. ac6_widescreen_cinematics enables it in in-game cutscenes(default true, gated).
The D3D12 PipelineBlendFactor enum had no constant-alpha entry, so the Xenos
CONSTANT_ALPHA and ONE_MINUS_CONSTANT_ALPHA blend factors (14, 15) were mapped
onto the constant-COLOR kBlendFactor / kInvBlendFactor - i.e. D3D12 BLEND_FACTOR
/ INV_BLEND_FACTOR, which use the blend constant's RGB rather than its alpha.
Aircraft ground shadow blends with dst = ONE_MINUS_CONSTANT_ALPHA and aSTANT_ALPHA blend factors collapsing onto
blend constant of (0.03, 0.04, 0.04, 0.30): it wants 1 - 0.30 = 0.70 (scale the
background down -> darken), but got 1 - (0.03,0.04,0.04) ~= 0.97 (barely scaled)
with the white source added on top, so the shadow BRIGHTENED instead of
darkening - the "white shadow" bug. Vulkan has the distinct
ONE_MINUS_CONSTANT_ALPHA factor and renders it correctly.
Add kBlendFactorAlpha / kInvBlendFactorAlpha to the enum, route factors 14/15 to
them in both the colour and alpha maps, and map them to D3D12 ALPHA_FACTOR /
INV_ALPHA_FACTOR. Verified fixed on both the RTV and ROV render-target paths.
Extract the build watermark into its own BuildStampOverlay (rex/ui/overlay/build_stamp_overlay.*), a non-interactive drawer in the lower-left corner - independent of the F3 debug overlay. It stamps the short git commit hash (REXGLUE_GIT_HASH, captured by CMake via git rev-parse --short HEAD -> version.h; re-run cmake to refresh) via REXGLUE_BUILD_HASH_STAMP, instead of the build date. Drawing is gated by the show_build_stamp cvar (category UI, default true) so players can hide it; registered next to the other built-in overlays in rex_app.
Guest swap thread blocks on real GPU delivery (NotifyGuestPresent feeds the delivery counter) + an absolute-deadline limiter at ac6_fps_target, not the vblank grid (no sub-harmonic staircase). dt-snap locks the sim delta to the exact target at steady rate (kills the shake). Guest vblank forced to free-run during gameplay so pacing needs zero config. ac6_unlock_fps is the single master switch, ON by default (folded in timing-hooks/vblank-auto/delta-precision/dt-snap-tolerance AND the flight-model framerate-independence fix).
FPS/frametime counters (avg 0.5s), two fixed-time-interval frametime graphs (fps-independent, spikes preserved), present-wait metric (rex/ui/present_stats.h). Guest stats provider wired in OnCreateDialogs. Removed the old inline F3-only build watermark (moves to a standalone always-on drawer in a later commit).
With the unlock forcing single-vblank presents, frame-locked content (menus,
hangar, in-engine cutscenes) free-runs far too fast while only gameplay should.
Pace the guest vblank dynamically: free-run only while the 3D world is being
rendered, otherwise force the native 60Hz.
"World is rendering" is detected from the GPU side - the command processor
stamps a heartbeat (NotifyWorldCompositorDraw) whenever a draw uses the
world/effects compositor pixel shader (ucode 17e5e4ac3e713245), which runs
every frame of 3D but never in the 2D front-end. The present timing hook then
sets a guest-vblank Hz override via the new GraphicsSystem hook. Only engages
under the unlock; ac6_dynamic_vblank=false restores the plain always-on unlock.
The sun lens-flare draw (VS ADF9AFC4C10921B9 emits two billboards:
V0-V3 = the visible glow quad, V4-V7 = a malformed quad that mis-renders
in the emulator as a faint bright rectangle in the sky (the "square").
Cull it in the vertex shader using the translator's existing kill-vertex
mechanism: in CompleteVertexOrDomainShader, for this ucode hash
(plain host VS only), vertices with SV_VertexID >= ac6_flare_drop_index_min
(default 4) get a NaN output position, so the rasterizer discards the primitive.
The real glow (V0-V3) is untouched.
cvars: ac6_flare_drop_quad2 (bool, default true), ac6_flare_drop_index_min
(int32, default 4). Baked at shader translation.
Missile/jet trail position history is a fixed guest-address ring, so its
vertex fetch constants never change and the command processor's
vertex_buffer_states_ address cache skipped RequestRange forever, the GPU
copy of the trail history froze at zero (trails invisible) while CPU memory was
correct.
Register a physical-memory invalidation callback that flags when the CPU writes
watched GPU-visible memory, and drop the cached vertex-buffer states at the next
draw so the ring's pages get re-uploaded. Also notify those callbacks from the
access-violation page-recovery path (xmemory), since a recovered page becomes
read-write and would otherwise never fault again to report the write. Gated by
ac6_fix_trails (default ON).
Upscale mosaic. At draw-resolution scale > 1, AC6's deferred
EDRAM restore passes do integer pixel-address math on the PsParamGen
position. Its leftover sub-guest-pixel fraction scrambles into an 8x8
mosaic. Floor the param-gen position (param_gen_integer_guest_position)
and re-add the host sub-pixel at the fetch (param_gen_host_subpixel_restore).
Inert at 1x.
De-swizzle scramble. Some AC6 restore/resample passes
manually de-swizzle the Xenos EDRAM sub-tile layout of their source, which
is only correct on tiled data. The emulator detiles everything to linear,
so the de-swizzle always scrambles, streaking the cloud/effects pipeline.
For allowlisted shader hashes (ac6_neutralize_deswizzle_hashes) the sample
coordinate is replaced with the identity host-texel UV (a 1:1 copy).
Suspend the FPS unlock while a demo-manager Exec (DD sub_82184460 / EM sub_821856F8) ticks, so the frame-locked IngameCinematics Sequencer plays at native ~30fps instead of double speed. Adds ac6_cutscene_clamp CVar (default on).
D3D12 previously assumed native point-list + geometry-shader expansion; that path can drop or rasterize points incorrectly (invisible missile trails). Default to the shared triangle-strip VS expansion path with an init-time CVar override.
Vulkan: default vulkan_force_expand_point_sprites_in_vs to true for the same behavior on non-D3D12 hosts.
Made-with: Cursor
Dipshet