LLPanda3D — Panda3D C++ API reference for LLMs

A git-tracked, incrementally-built reference to the Panda3D 1.10.16 C++ engine source (panda/src/), written so an LLM coding agent can understand a subsystem without re-reading the raw engine source. Official Panda3D docs are Python-focused; this covers the C++ API.

Setup

Clone this repo — that's it, no Panda3D source needed:

git clone https://github.com/j-xsen/LLPanda3D.git

Then point your agent at LLPanda3D/README.md first (e.g. via a CLAUDE.md/AGENTS.md or equivalent project-instructions file). The docs are self-contained; source paths are noted for reference only.

If you also have the Panda3D 1.10.16 source (not just the standard distributable), cloning LLPanda3D/ as a sibling of panda/ unlocks one extra step: the agent can cross-check a doc against the real source when something looks off (see step 3 below). Without the source, skip that step — the docs still work, the agent just can't verify them against ground truth.

How this is organized

panda-src/<module>/ mirrors a directory under panda/src/ (e.g. panda-src/pgui/ documents panda/src/pgui/). Each module has its own README.md overview (class hierarchy, cross-cutting concepts) plus one .md file per class, cross-linked with relative markdown links. See panda-src/pgui/README.md for the reference example of this format.

Each class doc states its source path (.h/.I/.cxx), inheritance, purpose, non-obvious behavior notes pulled from the .cxx (not just the header), a compact API reference, events it throws (if any), a minimal usage snippet, and links to related classes.

How to use this as an LLM agent

1. Check the status table below for documented modules.
2. Read the module's README.md first, then the specific class doc(s).
3. (Only if you have the Panda3D source locally.) Doc vs. source mismatch: trust the source (panda/src/<module>/); treat the doc as stale and consider updating it.
4. Module not listed: read the source directly if you have it; consider adding a panda-src/<module>/ section (pgui format) if it's worth preserving.

Status

Module	panda/src/ path	Status
pgui	panda/src/pgui	Done (2026-08-22) — see panda-src/pgui/README.md
event	panda/src/event	Done (2026-08-22) — see panda-src/event/README.md
text	panda/src/text	Done (2026-08-22) — see panda-src/text/README.md
framework	panda/src/framework	Done (2026-08-22) — see panda-src/framework/README.md
display	panda/src/display	Done (2026-08-22) — see panda-src/display/README.md
pgraph	panda/src/pgraph	Done (2026-08-23) — see panda-src/pgraph/README.md
gobj	panda/src/gobj	Done (2026-08-23) — see panda-src/gobj/README.md
pgraphnodes	panda/src/pgraphnodes	Done (2026-08-23) — see panda-src/pgraphnodes/README.md
audio	panda/src/audio	Done (2026-08-23) — see panda-src/audio/README.md
collide	panda/src/collide	Done (2026-08-23) — see panda-src/collide/README.md
chan	panda/src/chan	Done (2026-08-23) — see panda-src/chan/README.md
char	panda/src/char	Done (2026-08-23) — see panda-src/char/README.md
putil	panda/src/putil	Done (2026-08-23) — see panda-src/putil/README.md
linmath	panda/src/linmath	Done (2026-08-24) — see panda-src/linmath/README.md
mathutil	panda/src/mathutil	Done (2026-08-24) — see panda-src/mathutil/README.md
dgraph	panda/src/dgraph	Done (2026-08-24) — see panda-src/dgraph/README.md
tform	panda/src/tform	Done (2026-08-24) — see panda-src/tform/README.md
cull	panda/src/cull	Done (2026-08-25) — see panda-src/cull/README.md
pipeline	panda/src/pipeline	Done (2026-08-25) — see panda-src/pipeline/README.md
pstatclient	panda/src/pstatclient	Done (2026-08-25) — see panda-src/pstatclient/README.md
express	panda/src/express	Not started
downloader	panda/src/downloader	Not started
net	panda/src/net	Not started
nativenet	panda/src/nativenet	Not started
device	panda/src/device	Not started
recorder	panda/src/recorder	Not started
egg	panda/src/egg	Not started
egg2pg	panda/src/egg2pg	Not started
parametrics	panda/src/parametrics	Not started
particlesystem	panda/src/particlesystem	Not started
physics	panda/src/physics	Not started
grutil	panda/src/grutil	Not started
distort	panda/src/distort	Not started
movies	panda/src/movies	Not started
vision	panda/src/vision	Not started
ffmpeg	panda/src/ffmpeg	Not started
audiotraits	panda/src/audiotraits	Not started
vrpn	panda/src/vrpn	Not started
bullet	panda/src/bullet	Not started
ode	panda/src/ode	Not started
physx	panda/src/physx	Not started
speedtree	panda/src/speedtree	Not started
rocket	panda/src/rocket	Not started
pnmimage	panda/src/pnmimage	Done (2026-08-28) — see panda-src/pnmimage/README.md
pnmimagetypes	panda/src/pnmimagetypes	Not started
pnmtext	panda/src/pnmtext	Not started
gsgbase	panda/src/gsgbase	Not started
glstuff	panda/src/glstuff	Not started
glgsg	panda/src/glgsg	Not started
gles2gsg	panda/src/gles2gsg	Not started
glesgsg	panda/src/glesgsg	Not started
dxgsg9	panda/src/dxgsg9	Not started
tinydisplay	panda/src/tinydisplay	Not started
windisplay	panda/src/windisplay	Not started
wgldisplay	panda/src/wgldisplay	Not started
x11display	panda/src/x11display	Not started
glxdisplay	panda/src/glxdisplay	Not started
egldisplay	panda/src/egldisplay	Not started
cocoadisplay	panda/src/cocoadisplay	Not started
osxdisplay	panda/src/osxdisplay	Not started
iphone	panda/src/iphone	Not started
iphonedisplay	panda/src/iphonedisplay	Not started
android	panda/src/android	Not started
androiddisplay	panda/src/androiddisplay	Not started
dxml	panda/src/dxml	Not started
configfiles	panda/src/configfiles	Not started
downloadertools	panda/src/downloadertools	Not started
pandabase	panda/src/pandabase	Not started
skel	panda/src/skel	Not started
testbed	panda/src/testbed	Not started
doc	panda/src/doc	Not started (Panda3D's own doc source, likely nothing to mirror)

Everything above is tracked; anything under panda/src/ missing from this table hasn't been triaged yet.