Orkuncakilkaya
f25289db20
`Gl.*` binds the whole OpenGL 4.1 core API — every entry point of the platform gl3.h with every GL_* constant, generated by `ludic-dev glgen` with per-call ABI thunks. Windowed builds get an NSOpenGLContext on the existing window at Retina resolution; headless builds render into an offscreen CGL context, so a program that uses Gl.* renders and screenshots identically under the test harness. It links gl.ll, the thunks and OpenGL.framework only when used; every other build stays byte-identical. packages/ludic.render3d is a physically based renderer written on that surface: HDRI image-based lighting, GPU-generated terrain with scanned PBR materials, CDLOD, cascaded shadows, glTF with skinning, instanced vegetation with impostors, procedural grass, water, SSAO, and an HDR pipeline with bloom, auto-exposure and ACES. It also carries this session's work on it: the terrain at half its cost (10.3 -> 5.4 ms of frame), the streaming hitch that got worse the longer you played, a resize that emptied the world, and the packaging that lets a game use the renderer from its own repository — `ludic assets`, the material manifest shipping with the package, and shader lookup falling back to the install root. See changes/ for each, with its numbers. The camping game that drove all of it has moved out to its own repository, Maroon Lake; examples/rendering/smooth.ludic stays as the renderer's example here. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
73 lines
2.8 KiB
Text
73 lines
2.8 KiB
Text
# assets.ludic — fetch the CC0 Poly Haven assets the renderer uses
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# (ported off tools/glgen/fetch_assets.sh, the last shell script in the tree).
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#
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# ludic assets [--force] (a game, fetching what the renderer needs)
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# ludic dev fetch-assets [--force] (the same thing, from a Ludic checkout)
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#
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# The manifest is `packages/ludic.render3d/assets.manifest` — one `<relative path> <url>`
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# pair per line — and it belongs to the renderer, not to any one project: the renderer
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# decides which scanned materials it wants. It ships with the package (and so with the
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# toolchain), so a game outside this repo fetches the right set without keeping its own
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# copy of the list. The files land in the PROJECT, under assets/polyhaven/: they are
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# large and redistributable from their origin, so they are fetched rather than tracked
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# by anyone.
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# the manifest that belongs to the renderer, in a checkout or in the install
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function assets_manifest_path() -> pointer {
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let local = "packages/ludic.render3d/assets.manifest"
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if file_exists(local) { return local }
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var home = getenv("LUDIC_HOME")
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if home == null or slen(home) == 0 { home = `{getenv_or("HOME", "")}/.ludic` }
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let inst = `{home}/packages/ludic.render3d/assets.manifest`
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if file_exists(inst) { return inst }
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return ""
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}
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function cmd_fetch_assets() -> int {
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let force = arg_count() > 2 and arg(2) == "--force"
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let root = "assets/polyhaven"
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let mpath = assets_manifest_path()
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if mpath == "" { err("ludic assets: cannot find packages/ludic.render3d/assets.manifest (is the toolchain installed?)\n"); return 1 }
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let manifest = read_file(mpath)
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if manifest == null { err(`ludic assets: cannot read {mpath}\n`); return 1 }
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var got = 0
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var had = 0
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var failed = 0
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let n = slen(manifest)
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var i = 0
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while i < n {
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var j = i
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while j < n and manifest[j] != 10 { j += 1 }
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let line = Text.trim(str_sub(manifest, i, j))
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i = j + 1
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if slen(line) == 0 { continue }
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# split the line into <relative path> <url> on the first run of whitespace
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let ln = slen(line)
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var k = 0
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while k < ln and not str_space(line[k]) { k += 1 }
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let rel = str_sub(line, 0, k)
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while k < ln and str_space(line[k]) { k += 1 }
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let url = Text.trim(str_sub(line, k, ln))
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if slen(rel) == 0 or slen(url) == 0 { continue }
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let dest = `{root}/{rel}`
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if not force and shq(`test -s {dest}`) {
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had += 1
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continue
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}
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print(`fetch {rel}`)
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run(`mkdir -p "$(dirname {dest})"`)
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if not shq(`curl -sSL --retry 3 -o {dest} {url}`) {
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err(`fetch-assets: cannot fetch {rel}\n`)
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run(`rm -f {dest}`)
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failed += 1
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} else {
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got += 1
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}
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}
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if failed > 0 { err(`fetch-assets: {string(failed)} failed\n`); return 1 }
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print(`OK {string(got)} fetched, {string(had)} already present`)
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return 0
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}
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