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feat(gl): OpenGL 4.1 and the ludic.render3d renderer
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`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>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-10 03:31:12 +03:00
parent 470971bf70
commit f25289db20
90 changed files with 35316 additions and 19853 deletions
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14
selfhost/backend/emit_call.ludic
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@ -875,6 +875,20 @@ function emit_ns_call(ns: pointer, meth: pointer, e: Node) -> Val {
# #62: a package-provided namespace (declared with @Namespace(Foo)) that none
# of the hardcoded core blocks matched — alias Foo.method to the bare function
# foo_method (positional args), the same generic path the core aliases use.
# Gl.* — OpenGL (runtime/native/gl.ludic + the generated gl_api.ludic): the
# 478 gl3.h entry points bound as externs gl_<snake_name>, plus the Ludic
# helpers (gl_open / gl_swap / gl_screenshot / gl_program / …). Labels are the
# declaration's parameter names, so `Gl.clear_color(red: 0.1, …)` works.
if (ns == "Gl") and (bare == null) {
bare = "gl_" + meth
var gdecl = find_fn(bare)
if (gdecl == null) { gdecl = find_extern(bare) }
if (gdecl != null) {
let gnames = param_labels(gdecl)
var gi = 0
while gi < len(gnames) { push(labels, gnames[gi]); gi += 1 }
}
}
if (bare == null) and is_registered_namespace(ns) {
bare = ns_lower(ns) + ("_") + meth
# #76: a namespace declared with a block controls its public surface — an