gltf_factors reads pbrMetallicRoughness.baseColorFactor, metallicFactor, roughnessFactor and the
emissiveFactor into the primitive (pr.fac), and prim_factors hands them to every program that draws its
textures (actors, the scatter's meshes and levels, the impostor bake) as 1 - factor, so a program never
given them - or a material that gives none (pr.fac null) - multiplies by 1 and draws as before. An
untextured material with a colour (or a metal/roughness) samples a pure white for it, so the factor is
exactly what it draws: horse_cornea is its own colour, not the 200 grey every untextured part had.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Both constants were worked out by hand and a byte off each: the tiles' bake wrote "LAAK" and "LDT2", which
ludic bake --check refuses, and r3d_baked_read, holding the same wrong constant, would have refused
ludic.base's correct files (the sun's shadow among them) while accepting its own. Now 0x4B41424C and
0x3254544C, checked against the strings; the unused LTT1 constant is gone. A re-bake is needed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
--emit-schema FILE writes the compiler's resolved view once the program type-checks: every
record (fields, types, defaults as written, docs, places, attributes), every registry with its
entries in their final order after the open-registry merge (key, constant, index, file:line:col
of the entry and of each field value, and which file contributed which keys), every const, and
the zero-argument functions a fn value can name. Deterministic, schema_version 1; the runtime is
left out. `ludic schema [file] [-o FILE]` wraps it.
--check --diagnostics=json prints every error as one JSON array on stdout: the checker's and the
module rules' all, a parse or lowering error as the last. Tokens and nodes now carry a column.
Fields take several @attributes; @Ref(Registry), @OneOf(PREFIX_), @Range(lo, hi), @Unit("..."),
@Asset("..."), @Color on a field and @AppendOnly / @ByKey on a registry change nothing but go into
the schema, and @Ref naming no registry is an error (every one reported). Fixtures:
examples/lang/attributes.ludic, examples/rejected/ref_unknown.ludic, cases in ludic-dev test.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A world swap unmounts the old map pack before terrain_reload, and the tiles' file (a baked file in that
pack) stayed open until terrain_unload. terrain_tiles_close closes it and stops the page pool; the next
map's terrain_from_baked / terrain_reload opens its own and makes the pool again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The game names the tiles' and the shadow's bake files (key, version) before the map is made; r3d_init's
terrain step and terrain_reload then open them with terrain_from_baked / terrain_shadow_from_bytes and
generate nothing, and fall back to the survey (saying so once) when a bake is missing or stale. Without
the call nothing changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The tiles' photograph side is 0 when the map has none: no photograph or coarse photograph sections, no
decode, ter_o answers 0, and no coarse photograph texture - as such a map has always drawn. The cut and
terrain_tiles_bake no longer require one.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
baked_open refuses a header whose key is not followed by a zero byte; a key a multiple of 8 long got
none. Now the payload starts at 32 + ((len(key) + 1 + 7) / 8) * 8, as bake_write writes it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
stream_capture(s, cx, cz, band) points the stream at a chunk of its own (made on the first capture),
calls the registered r3d_stream_fill for that cell and band, and returns how many instances it
emitted; stream_captured(i, k) reads them from stream_scratch. Build-time only; nothing in a frame
calls it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
baked_tex.ludic reads ludic.base's baked form by hand (render3d uses no package): the LBAK header, the
key ("png_sheets" / "cutouts", the Bakes rows) and the generator version, then the payload -
w, h, channels, depth and the samples for a PNG (the caller frees them as it would a decode), a whole
.dds for a cut-out (tex_load_dds_at: a .dds at an offset). Missing, or another key or version, and the
PNG path runs as before. Compiles with Maroon Lake (game, lab, lab/bake/textures).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
prec_put / prec_get / prec_size (Physics' spec): PREC_FULL, 12 bytes, for trees, boulders and stones
(u16 x, z in 1/65536 of the chunk; u16 y in cm above y_base; u8 scale over the kind's lo..hi, yaw, seed,
wind), and PREC_PACKED, 7 bytes, for the stream kinds (56 bits, least significant first: x 12, z 12,
y 12 in cm, scale 6, yaw 6, seed 4, wind 4). An encode takes the cell a value falls in, a decode its
centre, so a round trip is stable; a record is read from a []byte at an offset, never a pointer.
stream_emit_baked and layer_chunk_put take (recs, at, fmt) and decode through it; the earlier sb7_*
pair is gone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Maps ship outside the game, each one a content-addressed pack (.lmap: the .lpak format) downloaded to
the save root. The runtime already served reads from packs mounted at boot (packs.index); now one can
come and go while the game runs:
- Fs.mount(path) -> bool maps a pack over the ones mounted before it (searched first, as a later
packs.index line is); Fs.unmount(path) -> bool gives the mapping back (munmap, UnmapViewOfFile on
Windows) and closes the gap in the search order. Each slot keeps its length and path for it. A
FILE* still open over one of its entries (a baked_open_range) is closed first. Still 8 packs at most.
- baked_path(map, file) is assets/baked/maps/<map>/<file> for a map's bake - what its .lmap carries
and the game's own pack never does - and assets/baked/<file> for the rest.
The IR assembles for macOS and Windows (llvm-as). Compile-only: nothing mounted or run here.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sb7_pack / sb7_field are the one pack and unpack of the stream kinds' record (56 bits, least significant
first: x 12, z 12, y 12 over the chunk's y span, scale 6, yaw 6, seed 4, wind 4, read as a low and a high
word), which the bake and the game both import; stream_emit_baked decodes a prefix of it.
layer_chunks_begin / layer_chunk_put / layer_chunk_drop keep a fixed layer (trees, boulders, stones:
12-byte records) as a slab per resident chunk in its instance list, an n x n index made at load, the
list re-uploaded at most once a frame. Nothing calls them yet: behaviour unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
stream_set_grid(s, ox, oz) puts a stream's cells on a grid from a corner (0 keeps world zero, today's);
stream_emit_baked(s, recs, count, keep, x0, z0, y_base, lo, hi) emits the first keep 12-byte records
of a baked chunk (the layout agreed with Physics: u16 x, z in 1/65536 of the chunk, u16 y in cm above
y_base, u8 scale over the kind's lo..hi, u8 yaw, seed, wind) into the chunk being filled, and
stream_band_keep(count, share) is a band's prefix. Nothing calls them yet: behaviour unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ZInflate (z_inflate_new) holds the bit reader, the RFC tables and every table and scratch list a block
builds, rebuilt in place: an inflate allocates nothing, and a worker thread inflates in a context of its
own (made on the program's thread). z_inflate_in / z_uncompress_in / z_gunzip_in take it; z_inflate /
z_uncompress / z_gunzip and every caller (image, atlas, tiled, render3d's png_decode) are unchanged and
work in RtInflateState's one context. The old per-call lit/dist tables were also leaked on an error
return; there are none now. Compiles: Maroon Lake headless, examples/library/tiled_p2 and tiled_p6.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Heights as u16 over each 64 m tile's own minimum and step (a tile spanning 200 m steps 3 mm), normals
octahedral 8 + 8, the photograph RGB8, and the coarse level (2048: heights f32, normals, photograph)
- 30 + 32 + 48 + 16 + 8 + 12 MB, about 146 MB a map where the float tiles were 192 plus nothing coarse.
The writer puts the whole copy back to the quantized values as it goes, so the build's own queries,
the physics, the placements' bake and every machine read the same numbers; a tile read decodes them
into the pools the queries and the page pool already use.
terrain_tiles_bake(path, key, version, inputs_hash) writes a bake's file (ludic.base's LBAK header,
the tiles as its payload) from a made map; terrain_from_baked(path, key, version, half, ox, oz) opens
one at boot in place of terrain_use_dem / terrain_use_ortho, and terrain_init then generates nothing
(and bakes the sun's shadow from the coarse level unless terrain_shadow_from_bytes gave it). Without a
bake the cut writes the same format to <dir>/<key>.tiles and reads it back. The GPU's coarse level is
made from the file's coarse sections (the blit from the whole maps is gone).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
What is deterministic is made at build time by the game's own code (`ludic bake`) and read at run
time. baked.ludic, baked_hash.ludic, baked_stream.ludic:
- The header, 32 bytes little-endian: "LBAK" | u32 format (BAKE_FORMAT 1) | u32 generator version |
u32 payload offset | u64 inputs hash | u64 payload length | then the key (UTF-8, zero-padded to 8),
then the payload at its offset, whose layout is the bake's own.
- bake_write(path, key, version, inputs_hash, payload, n) makes the directories and writes it;
bake_inputs_hash(inputs) is FNV-1a 64 over each space-separated input: its path, a 0, its bytes.
- baked_open(path, key, version) -> []byte: the payload as a view of the file (no copy), or null for
a missing file or another format, key or version. The runtime never hashes inputs; `ludic bake
--check` holds a baked file to them at build time.
- baked_open_range(path, key, version) -> BakedFile kept open (header checked once),
baked_read(bf, at, n, into) -> count read into the caller's buffer from payload offset `at`
(held to the buffer and the payload), baked_len, baked_close: a streamed bake (placements by chunk,
terrain by tile) with nothing made per read. Pack-aware through file_open: on macOS a packed entry
is an fmemopen over the mapped pack (a seek is free), on Windows a temporary copy of the entry made
once when it is opened.
- baked_path(map, file), bake_missing(bake_st, key) (a dev build's line, once a key).
tests/baked_test.ludic: a payload round-trips for its key and version only, a streamed read at an
offset and one past the end, the inputs hash follows path and bytes. Written, type-checked, not run
(compile-only rule).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Each pair runs the work as the renderer always has and reads the result back, or makes the same
textures and fills them from bytes instead: impostor_bytes / impostor_from_bytes (and impostor_fill,
for a fog that opens past a layer's cards), terrain_shadow_bytes / terrain_shadow_from_bytes,
sky_ibl_bytes / sky_ibl_from_bytes (sky_precompute split into sky_ibl_make and the convolutions).
A bundle is a word count, a word length per part and the parts (bake_pack / bake_unpack), checked
against the textures' shapes before any byte is used. gpu_vk_readback.ludic reads a texture's level 0,
every layer, as stored; r3d_baked_read reads a bake's file (ludic.base's LBAK header: key and version
must match) since render3d cannot import ludic.base. Nothing calls them yet: behaviour unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The build's placements ask exact heights over the whole map before any ring exists, and through the
tiles that read the file ~25 000 times in one frame. The copies now stay after the cut and the game
calls terrain_tiles_build_done() when the world is built (the end of world_things, and after a swap's
terrain_reload); every answer is the same before and after, from the copy or the tile. The GPU half
merged here (r3d/tp-rt, r3d/tp-shd: the page table, the pool and the shaders) is unchanged by it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
At the cut the whole 4096 height, normal and photograph textures go, replaced by a coarse
2048 level (the CPU's tt_coarse uploaded; the normal and photograph blitted down on the GPU,
the photograph mipmapped) and a pool of fine tiles in three array textures - heights, normals,
photograph, each layer a tile with a one-texel border - addressed through a tt_n^2 page table
(u_tp_page: slot + 1, 0 = the coarse level). The pool holds the tiles within the reach (900 m,
or the fog wall's when nearer) and a ring, and is made again when the fog wall changes its size
(terrain_pages_fog). Once a frame (tp_frame, beside tt_frame) tiles past the reach and two tiles
go and the wanted ones come in nearest first, 8 a frame, written into a staging buffer kept for
the process (two halves, one per frame in flight) and copied into their layers inside the frame's
own command buffer - no submit of their own - with the page table re-uploaded only when it
changed. tp_bind binds the pool (or 1-layer stand-in arrays while paging is off, u_tp_on = 0) for
every program that reads the ground: terrain_bind_height (models, scatter, shadow_bind, grass),
terrain_bind_prog, the sun pass and the shadow bake. grass_cull.comp reads through the same page
table. R3D_VKMEM prints the pool's line. Tiles off, nothing changes. Compile-only: not run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
