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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>patchling · 3d object studio</title>
<style>
:root { color-scheme: light dark; }
body { font: 15px/1.5 system-ui, sans-serif; max-width: 1320px; margin: 1.2rem auto; padding: 0 1rem; }
header { display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; }
h1 { font-size: 1.15rem; margin: 0; flex: 1; }
#status { font-size: .78rem; opacity: .6; }
a, button.link { font-size: .78rem; background: none; border: none; color: #2563eb; cursor: pointer; padding: 0; }
label { display: block; font-size: .8rem; opacity: .7; margin: .8rem 0 .2rem; }
input, textarea { width: 100%; box-sizing: border-box; font: inherit; padding: .5rem; border-radius: .5rem; border: 1px solid #8888; }
textarea { font-family: ui-monospace, monospace; font-size: 12.5px; }
button.go { font: inherit; padding: .55rem 1rem; border-radius: .5rem; border: 1px solid #8888; cursor: pointer; background: #8881; margin-top: .8rem; }
button.go.primary { background: #2563eb; color: #fff; border-color: #2563eb; }
button:disabled { opacity: .5; cursor: default; }
.dim { opacity: .6; }
.lab { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 1rem; align-items: start; }
@media (max-width: 900px) { .lab { grid-template-columns: 1fr; } }
/* file tabs */
#files { display: flex; flex-wrap: wrap; gap: .3rem; align-items: center; }
.ftab { display: inline-flex; align-items: center; gap: .4rem; font-family: ui-monospace, monospace; font-size: 12px;
padding: .25rem .5rem; border: 1px solid #8884; border-radius: .45rem; background: #8881; cursor: pointer; }
.ftab.sel { border-color: #2563eb; background: #2563eb22; font-weight: 600; }
.ftab .x { opacity: .5; font-size: 13px; line-height: 1; }
.ftab .x:hover { opacity: 1; color: #cf222e; }
.ftab.add { border-style: dashed; color: #2563eb; }
pre { font-family: ui-monospace, monospace; font-size: 12px; white-space: pre-wrap; word-break: break-word;
background: #8881; border-radius: .5rem; padding: .7rem; max-height: 240px; overflow: auto; margin: 0; }
.diff .add { color: #1a7f37; } .diff .del { color: #cf222e; } .diff .hdr { opacity: .6; }
details > summary { cursor: pointer; font-size: .8rem; opacity: .7; margin-top: .8rem; }
#progress { display: none; margin-top: .8rem; padding: .6rem .8rem; border: 1px solid #8884; border-radius: .5rem; background: #8881; font-size: 13px; }
#progress .metrics { font-family: ui-monospace, monospace; margin-top: .25rem; }
#changes { font-size: .8rem; margin-top: .5rem; min-height: 1.2em; }
#changes .a { color: #1a7f37; } #changes .r { color: #cf222e; } #changes .c { opacity: .8; }
#key { display: none; margin-top: .5rem; }
#key input { max-width: 420px; display: inline-block; width: auto; }
.modelrow { font-size: .85rem; }
.modelrow b { font-family: ui-monospace, monospace; }
#modelrow { margin-top: .6rem; } #modelrow-apply { margin-top: .25rem; }
#modelpicker { display: none; margin-top: .4rem; border: 1px solid #8884; border-radius: .5rem; padding: .6rem; max-width: 560px; }
#modellist { max-height: 240px; overflow: auto; margin-top: .4rem; }
#modellist button { display: flex; justify-content: space-between; gap: 1rem; width: 100%; text-align: left;
font-family: ui-monospace, monospace; font-size: 12px; padding: .3rem .4rem; border: none;
background: none; border-radius: .3rem; cursor: pointer; }
#modellist button:hover { background: #8882; }
#modellist button.sel { background: #2563eb22; font-weight: 600; }
#modellist .price { opacity: .6; white-space: nowrap; }
#modellist .divider { font-size: 11px; opacity: .5; text-align: center; margin: .35rem 0; }
#modellist .mname { display: flex; align-items: center; gap: .4rem; min-width: 0; }
.tag { font-family: system-ui, sans-serif; font-size: 10px; padding: .05rem .35rem; border-radius: .6rem; white-space: nowrap; }
.tag.priv { background: #3b82f622; color: #2563eb; } .tag.closed { background: #f59e0b22; color: #b45309; }
/* preview */
.pvtools { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: .5rem; }
.pvtools .grow { flex: 1; }
.stagewrap { position: relative; width: 100%; aspect-ratio: 1 / 1; border-radius: .6rem; overflow: hidden; border: 1px solid #8884;
background: radial-gradient(120% 120% at 50% 0%, #1a1f33 0%, #090b14 70%); }
#pvframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: transparent; color-scheme: normal; }
.hint { font-size: .76rem; opacity: .6; margin-top: .5rem; }
.spin { display: inline-block; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
</style>
</head>
<body>
<style>
#banner { font-size: .8rem; text-align: center; padding: .5rem 1rem; margin: -1.2rem -1rem 1.2rem;
border-bottom: 1px solid #8883; background: #8881; }
#banner a { font-size: inherit; }
#banner .sep { opacity: .4; margin: 0 .5rem; }
</style>
<div id="banner">
<a href="https://patchling.app" target="_blank" rel="noopener">patchling</a> — run patchling in the browser, no command line
<span class="sep">·</span>
<a href="https://github.com/255BITS/patchling-examples" target="_blank" rel="noopener">more examples</a>
</div>
<header>
<h1>patchling · 3d object studio</h1>
<span id="status">checking…</span>
<a id="signin" href="#" style="display:none">Sign in with NanoGPT</a>
<button id="pastebtn" class="link" style="display:none">paste key</button>
<button id="signout" class="link" style="display:none">sign out</button>
</header>
<p class="dim" style="font-size:.85rem;margin:.3rem 0 0">
A 3D object built from <b>multiple files</b> — the geometry, the material, an SVG texture, the lighting/effects,
and a JSON config. Describe a change, and patchling rewrites <i>all</i> of them (adding or removing files as needed);
the viewer on the right re-renders live. Drag to orbit, scroll to zoom, then <b>export</b> a <code>.glb</code> /
<code>.obj</code> you can open in Blender, Three.js, Unity, or any 3D tool.
</p>
<div id="key">
<input id="keyinput" placeholder="sk-nano-…" />
<button id="keysave" class="link">save</button>
<span class="dim" style="font-size:.78rem">— from <a href="https://nano-gpt.com/r/FXrrGWE4" target="_blank" rel="noopener">nano-gpt.com</a> → Settings → API</span>
</div>
<div id="modelrow" class="modelrow">Diff model: <b id="modelname-diff">…</b> <span id="modeltags-diff"></span> <span id="modelprice-diff"></span> <button class="link modelchange" data-target="diff">change</button></div>
<div id="modelrow-apply" class="modelrow">Apply model: <b id="modelname-apply">…</b> <span id="modeltags-apply"></span> <span id="modelprice-apply"></span> <button class="link modelchange" data-target="apply">change</button></div>
<div id="modelpicker">
<input id="modelsearch" placeholder="filter 600+ models, or type an exact id…" autocomplete="off" />
<div id="modellist"></div>
<div class="dim" style="font-size:.75rem;margin-top:.3rem"><span id="modelcount"></span> · top = each frontier lab's latest flagship · price = $ in / $ out per 1M · Enter to use exact text</div>
</div>
<div class="lab">
<!-- LEFT: the multi-file project + the goal -->
<div>
<label>Project files <span class="dim">(patchling edits, adds & removes these)</span></label>
<div id="files"></div>
<label id="activelabel" for="editor" style="font-family:ui-monospace,monospace">…</label>
<textarea id="editor" rows="18" spellcheck="false"></textarea>
<label for="goal">Goal (what to change)</label>
<input id="goal" value="Turn it into a glowing crystal — sharper facets, emissive cyan edges, slower spin" />
<div style="display:flex;gap:.5rem;align-items:center">
<button id="run" class="go primary">Diff & apply → re-render</button>
<button id="undo" class="go" disabled>↶ undo</button>
</div>
<div id="progress">
<span class="spin">◐</span> <b id="phase">starting…</b> · ⏱ <span id="elapsed">0.0</span>s
<div class="metrics">↓ <span id="inTok">0</span> in · ↑ <span id="outTok">0</span> out · <span id="cost">$0.00000</span> <span id="livenote" class="dim"></span></div>
</div>
<div id="changes"></div>
<details>
<summary>Generated diff</summary>
<pre id="diff" class="diff" style="margin-top:.4rem"></pre>
</details>
</div>
<!-- RIGHT: the live 3D viewer -->
<div>
<div class="pvtools">
<span class="grow" style="font-size:.85rem;font-weight:600">Live preview · drag to orbit</span>
<label class="toggle" style="font-size:.78rem;display:inline-flex;align-items:center;gap:.3rem;opacity:.85"><input type="checkbox" id="live" checked /> live edits</label>
<button id="reset" class="link">↻ reset view</button>
</div>
<div class="stagewrap">
<iframe id="pvframe" sandbox="allow-scripts" title="3d preview"></iframe>
</div>
<div class="pvtools" style="margin-top:.5rem">
<span class="dim" style="font-size:.78rem">download:</span>
<button id="exp-glb" class="link" style="font-weight:600">⬇ .glb</button>
<button id="exp-obj" class="link">⬇ .obj</button>
<span id="exp-status" class="dim" style="font-size:.75rem"></span>
</div>
<div class="hint">
The object, its material, the SVG texture and the lighting all live as editable files on the left. <b>.glb</b>
(binary glTF, embeds the material + texture) and <b>.obj</b> (geometry-only, universal) both import straight
into Blender / Maya / Unity / Three.js.
</div>
</div>
</div>
<footer style="margin-top:2rem;padding-top:1rem;border-top:1px solid #8883;font-size:.85rem">
<b>Other examples</b> · <a href="index.html">patchling · diff → smartapply</a> · <a href="overlay.html">🎬 realtime video overlay</a> · <a href="comic.html">📖 AI-liftoff comic</a> · <a href="marvis.html">🤖 MARVIS</a> · <a href="count.html">🔢 count to 100</a>
</footer>
<script type="module">
import { buildEnvironment, generateDiff, smartapply, parseDiffPerFile, callLlmForApply, setEnv }
from "https://esm.sh/patchling";
const DEFAULT_MODEL = "xiaomi/mimo-v2.5-pro-ultraspeed";
const APPLY_DEFAULT = "xiaomi/mimo-v2.5-pro-ultraspeed";
const NANOGPT = "https://nano-gpt.com";
const $ = (id) => document.getElementById(id);
let MODEL = localStorage.getItem("ngpt_model") || DEFAULT_MODEL;
let APPLY = localStorage.getItem("ngpt_apply_model") || APPLY_DEFAULT;
let pickerTarget = "diff";
if (location.hostname === "127.0.0.1") location.hostname = "localhost";
// ---------- key storage ----------
const getKey = () => localStorage.getItem("ngpt_key");
const setKey = (k) => { k ? localStorage.setItem("ngpt_key", k) : localStorage.removeItem("ngpt_key"); if (k) setEnv("GPTDIFF_LLM_API_KEY", k); };
if (getKey()) setEnv("GPTDIFF_LLM_API_KEY", getKey());
// ---------- browser OAuth PKCE ----------
const REDIRECT_URI = location.origin + location.pathname;
const b64url = (b) => btoa(String.fromCharCode(...new Uint8Array(b))).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
const rand = (n) => b64url(crypto.getRandomValues(new Uint8Array(n)));
const sha256url = async (s) => b64url(await crypto.subtle.digest("SHA-256", new TextEncoder().encode(s)));
async function clientId() {
const cached = JSON.parse(localStorage.getItem("ngpt_client") || "null");
if (cached && cached.redirect === REDIRECT_URI) return cached.id;
const r = await fetch(`${NANOGPT}/oauth/register`, {
method: "POST", headers: { "Content-Type": "application/json" },
body: JSON.stringify({ client_name: "patchling 3d studio", redirect_uris: [REDIRECT_URI],
grant_types: ["authorization_code"], response_types: ["code"], token_endpoint_auth_method: "none" }),
});
if (!r.ok) throw new Error("register " + r.status);
const id = (await r.json()).client_id;
localStorage.setItem("ngpt_client", JSON.stringify({ id, redirect: REDIRECT_URI }));
return id;
}
async function signIn() {
const id = await clientId();
const verifier = rand(32), state = rand(16);
sessionStorage.setItem("pkce", JSON.stringify({ verifier, state, id }));
const u = new URL(`${NANOGPT}/oauth/authorize`);
u.search = new URLSearchParams({
response_type: "code", client_id: id, redirect_uri: REDIRECT_URI, scope: "api.use models.read",
state, code_challenge: await sha256url(verifier), code_challenge_method: "S256", invitation_code: "FXrrGWE4",
}).toString();
location.assign(u.toString());
}
async function handleRedirect() {
const p = new URLSearchParams(location.search);
if (!p.has("code") && !p.has("error")) return;
history.replaceState({}, "", REDIRECT_URI);
const saved = JSON.parse(sessionStorage.getItem("pkce") || "null");
sessionStorage.removeItem("pkce");
if (p.get("error")) throw new Error(p.get("error"));
if (!saved || p.get("state") !== saved.state) throw new Error("state mismatch");
const r = await fetch(`${NANOGPT}/oauth/token`, {
method: "POST", headers: { "Content-Type": "application/x-www-form-urlencoded" },
body: new URLSearchParams({ grant_type: "authorization_code", client_id: saved.id,
redirect_uri: REDIRECT_URI, code: p.get("code"), code_verifier: saved.verifier }),
});
if (!r.ok) throw new Error("token exchange: " + (await r.text()));
setKey((await r.json()).access_token);
}
function renderAuth() {
const signed = !!getKey();
$("status").textContent = signed ? "ready ✓" : "not signed in";
$("signin").style.display = signed ? "none" : "";
$("pastebtn").style.display = signed ? "none" : "";
$("signout").style.display = signed ? "" : "none";
$("run").disabled = !signed;
}
$("signin").addEventListener("click", (e) => { e.preventDefault(); signIn().catch((err) => $("status").textContent = "sign-in error: " + err.message); });
$("pastebtn").addEventListener("click", () => { $("key").style.display = "block"; $("keyinput").focus(); });
$("keysave").addEventListener("click", () => { const k = $("keyinput").value.trim(); if (k) { setKey(k); $("key").style.display = "none"; renderAuth(); } });
$("signout").addEventListener("click", () => { setKey(null); renderAuth(); });
// ---------- model selection ----------
let allModels = null, topOrder = new Map();
const LABS = [
["OpenAI", /^openai\/(gpt-[0-9]|o[1-9])/i],
["Anthropic", /claude-(opus|sonnet)/i],
["Google", /gemini[0-9.\-]*-pro|gemini-pro/i],
["xAI", /grok-[0-9]/i],
["DeepSeek", /deepseek-(r1|v3|v4|chat)/i],
["Qwen", /qwen[0-9.]*-max/i],
["Mistral", /mistral-large/i],
];
const PINNED = ["xiaomi/mimo-v2.5-pro-ultraspeed", "moonshotai/kimi-k2.7-code-highspeed", "moonshotai/kimi-k2.7-code"];
const SMALL = /flash|nano|\blite\b|\bmini\b|-mini|\bsmall\b|tiny|oss|guard|preview|search|codex|:(low|medium|high|thinking)|cheaper|multi-agent|-\d+b\b|a\d+b\b|^tee\//i;
const px = (x) => (x == null ? null : "$" + Number(x).toFixed(2));
const priceOf = (id) => (allModels || []).find((m) => m.id === id);
function computeTop() {
const ids = new Set(allModels.map((m) => m.id));
const order = PINNED.filter((id) => ids.has(id));
const picks = [];
for (const [, re] of LABS) {
const m = allModels.filter((x) => re.test(x.id) && !SMALL.test(x.id)).sort((a, b) => (b.created || 0) - (a.created || 0))[0];
if (m && !order.includes(m.id)) picks.push(m);
}
picks.sort((a, b) => (b.created || 0) - (a.created || 0));
for (const m of picks) order.push(m.id);
topOrder = new Map(order.map((id, i) => [id, i]));
}
const rank = (id) => (topOrder.has(id) ? topOrder.get(id) : 1e9);
const selectedFor = (target) => (target === "apply" ? APPLY : MODEL);
function setModel(id, target) {
if (target === "apply") { APPLY = id; localStorage.setItem("ngpt_apply_model", id); }
else { MODEL = id; localStorage.setItem("ngpt_model", id); }
renderModelRow(target);
}
function renderModelRow(target) {
const id = selectedFor(target);
const m = priceOf(id) || { id };
$(`modelname-${target}`).textContent = id;
$(`modelprice-${target}`).textContent = m.prompt != null ? `(${px(m.prompt)} / ${px(m.completion)} per 1M)` : "";
$(`modeltags-${target}`).replaceChildren(...tagEls(m));
}
async function loadModels() {
if (allModels) return allModels;
let arr = [];
try {
const headers = {}; const k = getKey(); if (k) headers.Authorization = `Bearer ${k}`;
arr = (await (await fetch(`${NANOGPT}/api/v1/models?detailed=true`, { headers })).json()).data || [];
} catch { /* ignore */ }
allModels = arr.map((m) => ({ id: m.id, prompt: m.pricing?.prompt, completion: m.pricing?.completion, owned_by: m.owned_by, created: m.created })).filter((m) => m.id);
if (!allModels.length) allModels = [{ id: DEFAULT_MODEL }];
computeTop();
allModels.sort((a, b) => (rank(a.id) - rank(b.id)) || a.id.localeCompare(b.id));
renderModelRow("diff"); renderModelRow("apply");
return allModels;
}
function tagsFor(m) {
const t = [];
if (m.id.startsWith("TEE/")) t.push(["private", "priv", "Runs in a Trusted Execution Environment"]);
const ob = (m.owned_by || "").toLowerCase();
if (["openai", "anthropic", "x-ai", "google", "gemini"].includes(ob)) t.push(["closed source", "closed", "Closed-source / proprietary model"]);
return t;
}
function tagEls(m) {
return tagsFor(m).map(([txt, cls, title]) => { const s = document.createElement("span"); s.className = "tag " + cls; s.textContent = txt; s.title = title; return s; });
}
function modelButton(m) {
const b = document.createElement("button");
if (m.id === selectedFor(pickerTarget)) b.className = "sel";
const left = document.createElement("span"); left.className = "mname";
const name = document.createElement("span"); name.textContent = m.id;
left.append(name, ...tagEls(m));
const price = document.createElement("span"); price.className = "price";
price.textContent = m.prompt != null ? `${px(m.prompt)} / ${px(m.completion)}` : "—";
b.append(left, price);
b.addEventListener("click", () => { setModel(m.id, pickerTarget); $("modelpicker").style.display = "none"; });
return b;
}
function renderModelList() {
const q = $("modelsearch").value.trim().toLowerCase();
const matches = (allModels || []).filter((m) => m.id.toLowerCase().includes(q));
const shown = matches;
$("modellist").innerHTML = "";
let dividerPlaced = !!q;
for (const m of shown) {
if (!dividerPlaced && rank(m.id) === 1e9) {
const d = document.createElement("div"); d.className = "divider"; d.textContent = "— all models —";
$("modellist").appendChild(d); dividerPlaced = true;
}
$("modellist").appendChild(modelButton(m));
}
$("modelcount").textContent = `${matches.length} match${matches.length === 1 ? "" : "es"}`;
}
for (const btn of document.querySelectorAll(".modelchange")) {
btn.addEventListener("click", async () => {
const target = btn.dataset.target;
const same = $("modelpicker").style.display === "block" && pickerTarget === target;
pickerTarget = target;
$("modelpicker").style.display = same ? "none" : "block";
if (!same) { $("modelsearch").value = ""; $("modellist").innerHTML = "<div class='dim'>loading…</div>"; await loadModels(); renderModelList(); $("modelsearch").focus(); }
});
}
$("modelsearch").addEventListener("input", renderModelList);
$("modelsearch").addEventListener("keydown", (e) => {
if (e.key === "Enter") { const v = $("modelsearch").value.trim(); if (v) { setModel(v, pickerTarget); $("modelpicker").style.display = "none"; } }
});
// ---------- streaming LLM client injected into patchling ----------
const fmtCost = (c) => "$" + (c || 0).toFixed(5);
const n = (x) => (x || 0).toLocaleString();
const words = (s) => (String(s).match(/\S+/g) || []).length;
const prog = { inDone: 0, outDone: 0, cost: 0, liveIn: 0, liveOut: 0, liveCost: 0 };
function paintUsage() {
$("inTok").textContent = n(prog.inDone + prog.liveIn);
$("outTok").textContent = n(prog.outDone + prog.liveOut);
$("cost").textContent = fmtCost(prog.cost + prog.liveCost); // committed + in-flight estimate
}
function streamingCallLlm(phase) {
return async ({ apiKey, baseUrl, model, messages, maxTokens = null, temperature = 1.0 }) => {
$("phase").textContent = phase;
const inEst = messages.reduce((s, m) => s + words(typeof m.content === "string" ? m.content : JSON.stringify(m.content)), 0);
const price = priceOf(model) || {};
const inPer = (Number(price.prompt) || 0) / 1e6, outPer = (Number(price.completion) || 0) / 1e6;
let prevOut = 0, myCost = 0;
const recost = () => { const c = inEst * inPer + prevOut * outPer; prog.liveCost += c - myCost; myCost = c; };
prog.liveIn += inEst; recost(); paintUsage();
const endpoint = (baseUrl || `${NANOGPT}/api/v1/`).replace(/\/+$/, "") + "/chat/completions";
let r;
try {
r = await fetch(endpoint, {
method: "POST", headers: { Authorization: `Bearer ${apiKey}`, "Content-Type": "application/json" },
// No max_tokens by default → let the model emit its full output (avoids silent
// truncation that produces an unparseable diff). Callers may still pass a cap.
body: JSON.stringify({ model, messages, ...(maxTokens ? { max_tokens: maxTokens } : {}), temperature, stream: true }),
});
} catch (e) { prog.liveIn -= inEst; prog.liveCost -= myCost; throw e; }
if (!r.ok) { prog.liveIn -= inEst; prog.liveCost -= myCost; throw new Error(`LLM ${r.status}: ${await r.text()}`); }
const reader = r.body.getReader();
const dec = new TextDecoder();
let buf = "", content = "", reasoning = "", pricing = null, lastTick = 0;
for (;;) {
const { value, done } = await reader.read();
if (done) break;
buf += dec.decode(value, { stream: true });
const lines = buf.split("\n");
buf = lines.pop();
for (const line of lines) {
const t = line.trim();
if (!t.startsWith("data:")) continue;
const data = t.slice(5).trim();
if (data === "[DONE]") continue;
let j; try { j = JSON.parse(data); } catch { continue; }
const d = j.choices?.[0]?.delta;
if (d) {
if (d.content) { content += d.content; appendText(phase, d.content); }
if (d.reasoning) reasoning += d.reasoning;
if (d.content || d.reasoning) {
const cur = words(content) + words(reasoning);
prog.liveOut += cur - prevOut; prevOut = cur; recost();
const now = performance.now();
if (now - lastTick > 80) { lastTick = now; paintUsage(); $("livenote").textContent = content ? "" : "· thinking…"; }
}
}
if (j.x_nanogpt_pricing) pricing = j.x_nanogpt_pricing;
}
}
prog.liveIn -= inEst; prog.liveOut -= prevOut; prog.liveCost -= myCost;
prog.inDone += pricing?.inputTokens ?? inEst;
prog.outDone += pricing?.outputTokens ?? prevOut;
prog.cost += pricing?.costUsd ?? pricing?.cost ?? myCost; // exact, else keep the estimate
paintUsage(); $("livenote").textContent = "";
return { choices: [{ message: { content } }] };
};
}
// ================= multi-file project =================
let files = {}; // { path: content }
let active = null; // selected path
let undoSnapshot = null;
// Built-in 3D scene. preview.html stitches the pieces together with Three.js.
const EMBEDDED_SEED = {
"preview.html": `<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>3D object</title>
<style>
html, body { margin: 0; height: 100%; overflow: hidden; background: transparent; color-scheme: normal; }
#app { position: absolute; inset: 0; }
#app canvas { display: block; }
</style>
<!-- include-config: scene.json -->
<!-- include-texture: texture.svg -->
<script type="importmap">
{ "imports": {
"three": "https://cdn.jsdelivr.net/npm/three@0.160.0/build/three.module.js",
"three/addons/": "https://cdn.jsdelivr.net/npm/three@0.160.0/examples/jsm/"
} }
<\/script>
</head>
<body>
<div id="app"></div>
<!-- Each piece of the object is its own file. patchling edits these directly. -->
<script src="object.js"><\/script>
<script src="material.js"><\/script>
<script src="effects.js"><\/script>
<script type="module">
import * as THREE from "three";
import { OrbitControls } from "three/addons/controls/OrbitControls.js";
import { GLTFExporter } from "three/addons/exporters/GLTFExporter.js";
import { OBJExporter } from "three/addons/exporters/OBJExporter.js";
const cfg = window.SCENE_CONFIG || {};
const G = window.GPTDIFF3D || {};
const host = document.getElementById("app");
const renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true, preserveDrawingBuffer: true });
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
renderer.setSize(host.clientWidth, host.clientHeight);
host.appendChild(renderer.domElement);
const scene = new THREE.Scene();
if (cfg.background) scene.background = new THREE.Color(cfg.background);
const camera = new THREE.PerspectiveCamera(45, host.clientWidth / host.clientHeight, 0.1, 100);
camera.position.set(0, 0.4, 4);
const controls = new OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;
controls.dampingFactor = 0.08;
// Texture built from texture.svg (data URL injected by the bundler).
let texture = null;
if (window.SCENE_TEXTURE_SVG) {
texture = new THREE.TextureLoader().load(window.SCENE_TEXTURE_SVG, () => renderer.render(scene, camera));
texture.colorSpace = THREE.SRGBColorSpace;
texture.anisotropy = renderer.capabilities.getMaxAnisotropy();
}
const geometry = G.geometry ? G.geometry(THREE, cfg) : new THREE.TorusKnotGeometry(0.85, 0.28, 200, 32);
const material = G.material ? G.material(THREE, cfg, texture) : new THREE.MeshStandardMaterial({ color: 0x7c5cff });
const mesh = new THREE.Mesh(geometry, material);
mesh.name = cfg.name || "GptdiffObject";
scene.add(mesh);
const update = G.effects ? G.effects(THREE, scene, mesh, cfg) : null;
const clock = new THREE.Clock();
function tick() {
const t = clock.getElapsedTime();
if (typeof update === "function") update(t, mesh);
controls.update();
renderer.render(scene, camera);
requestAnimationFrame(tick);
}
tick();
function resize() {
const w = host.clientWidth, h = host.clientHeight;
camera.aspect = w / h; camera.updateProjectionMatrix();
renderer.setSize(w, h);
}
window.addEventListener("resize", resize);
// ---- export to a real 3D-modelling file (handled by the parent page) ----
function exportModel(format) {
const r = mesh.rotation.clone();
mesh.rotation.set(0, 0, 0); // bake a clean, un-spun pose
mesh.updateMatrixWorld(true);
const restore = () => { mesh.rotation.copy(r); };
if (format === "obj") {
const text = new OBJExporter().parse(mesh);
restore();
parent.postMessage({ type: "gptdiff3d:exported", format: "obj", text, filename: "model.obj" }, "*");
} else {
new GLTFExporter().parse(mesh, (buffer) => {
restore();
parent.postMessage({ type: "gptdiff3d:exported", format: "glb", buffer, filename: "model.glb" }, "*", [buffer]);
}, (err) => { restore(); parent.postMessage({ type: "gptdiff3d:error", message: String(err) }, "*"); },
{ binary: true });
}
}
window.addEventListener("message", (e) => {
const d = e.data || {};
if (d.type === "gptdiff3d:export") exportModel(d.format);
else if (d.type === "gptdiff3d:reset") controls.reset();
});
parent.postMessage({ type: "gptdiff3d:ready" }, "*");
<\/script>
</body>
</html>
`,
"scene.json": `{
"name": "GptdiffObject",
"shape": "torusKnot",
"color": "#7c5cff",
"metalness": 0.6,
"roughness": 0.25,
"wireframe": false,
"useTexture": true,
"textureRepeat": 2,
"background": "#0b0d17",
"lightColor": "#ffffff",
"lightIntensity": 1.3,
"rimColor": "#22d3ee",
"autoRotate": true,
"rotateSpeed": 1.0
}
`,
"object.js": `// The geometry of the object. Return any THREE.BufferGeometry.
// patchling can swap the shape, change resolution, or build something custom here.
window.GPTDIFF3D = window.GPTDIFF3D || {};
window.GPTDIFF3D.geometry = function (THREE, cfg) {
switch (cfg.shape) {
case "box": return new THREE.BoxGeometry(1.5, 1.5, 1.5, 4, 4, 4);
case "sphere": return new THREE.SphereGeometry(1.1, 64, 48);
case "torus": return new THREE.TorusGeometry(0.95, 0.38, 32, 96);
case "cone": return new THREE.ConeGeometry(1.1, 1.8, 64);
case "icosahedron": return new THREE.IcosahedronGeometry(1.2, 0);
case "torusKnot":
default: return new THREE.TorusKnotGeometry(0.85, 0.28, 220, 32);
}
};
`,
"material.js": `// The surface material. \`texture\` is built from texture.svg (or null if disabled).
// patchling can retune metalness/roughness, add emissive glow, switch material type, etc.
window.GPTDIFF3D = window.GPTDIFF3D || {};
window.GPTDIFF3D.material = function (THREE, cfg, texture) {
const mat = new THREE.MeshStandardMaterial({
color: new THREE.Color(cfg.color || "#7c5cff"),
metalness: cfg.metalness ?? 0.6,
roughness: cfg.roughness ?? 0.25,
wireframe: !!cfg.wireframe,
emissive: new THREE.Color(cfg.emissive || "#000000"),
emissiveIntensity: cfg.emissiveIntensity ?? 1,
});
if (cfg.useTexture && texture) {
const rep = cfg.textureRepeat ?? 2;
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.repeat.set(rep, rep);
mat.map = texture;
}
return mat;
};
`,
"texture.svg": `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" width="256" height="256">
<rect width="256" height="256" fill="#161a2b" />
<g fill="none" stroke="#7c5cff" stroke-width="3">
<circle cx="128" cy="128" r="96" />
<circle cx="128" cy="128" r="60" />
<circle cx="128" cy="128" r="26" />
<path d="M0 128 H256 M128 0 V256" />
</g>
<g fill="#22d3ee">
<circle cx="0" cy="0" r="9" /><circle cx="256" cy="0" r="9" />
<circle cx="0" cy="256" r="9" /><circle cx="256" cy="256" r="9" />
<circle cx="128" cy="128" r="10" />
</g>
</svg>
`,
"effects.js": `// Lighting + animation. Add lights to \`scene\`, then return an update(timeSeconds, mesh)
// called every frame. patchling can add particles, post-style glow, motion, extra lights…
window.GPTDIFF3D = window.GPTDIFF3D || {};
window.GPTDIFF3D.effects = function (THREE, scene, mesh, cfg) {
const key = new THREE.DirectionalLight(cfg.lightColor || "#ffffff", cfg.lightIntensity ?? 1.3);
key.position.set(3, 4, 5);
scene.add(key);
const rim = new THREE.DirectionalLight(cfg.rimColor || "#22d3ee", 0.7);
rim.position.set(-4, -1.5, -3);
scene.add(rim);
scene.add(new THREE.AmbientLight("#3a4163", 0.85));
const speed = cfg.rotateSpeed ?? 1;
return function update(t, obj) {
if (cfg.autoRotate) {
obj.rotation.y = t * 0.5 * speed;
obj.rotation.x = Math.sin(t * 0.3) * 0.18;
}
};
};
`,
};
const SEED_ORDER = Object.keys(EMBEDDED_SEED); // preferred tab order
async function loadSeed() {
try {
const man = await (await fetch("object3d/manifest.json", { cache: "no-store" })).json();
const out = {};
await Promise.all((man.files || []).map(async (p) => {
out[p] = await (await fetch("object3d/" + p, { cache: "no-store" })).text();
}));
if (Object.keys(out).length) return out;
} catch { /* fall through to embedded */ }
return { ...EMBEDDED_SEED };
}
// ---------- file tabs + editor ----------
const fileOrder = () => {
const keys = Object.keys(files);
return keys.sort((a, b) => {
const ai = SEED_ORDER.indexOf(a), bi = SEED_ORDER.indexOf(b);
if (ai !== -1 || bi !== -1) return (ai === -1 ? 1e9 : ai) - (bi === -1 ? 1e9 : bi);
return a.localeCompare(b);
});
};
function renderTabs() {
const host = $("files"); host.innerHTML = "";
for (const path of fileOrder()) {
const tab = document.createElement("span");
tab.className = "ftab" + (path === active ? " sel" : "");
const name = document.createElement("span"); name.textContent = path;
name.addEventListener("click", () => selectFile(path));
const x = document.createElement("span"); x.className = "x"; x.textContent = "✕"; x.title = "delete file";
x.addEventListener("click", (e) => { e.stopPropagation(); deleteFile(path); });
tab.append(name, x);
host.appendChild(tab);
}
const add = document.createElement("span");
add.className = "ftab add"; add.textContent = "+ file";
add.addEventListener("click", addFile);
host.appendChild(add);
}
function selectFile(path) {
if (active && files[active] !== undefined) files[active] = $("editor").value; // commit edits
active = path;
$("activelabel").textContent = path;
$("editor").value = files[path] ?? "";
renderTabs();
}
function loadEditor() { if (active != null) { $("activelabel").textContent = active; $("editor").value = files[active] ?? ""; } }
function addFile() {
const path = prompt("New file path (e.g. layers/glow.js)");
if (!path) return;
const p = path.trim();
if (!p || files[p] !== undefined) { if (files[p] !== undefined) selectFile(p); return; }
files[p] = "";
renderTabs(); selectFile(p); scheduleLive();
}
function deleteFile(path) {
if (!confirm("Delete " + path + " ?")) return;
delete files[path];
if (active === path) active = fileOrder()[0] || null;
renderTabs(); loadEditor(); scheduleLive();
}
$("editor").addEventListener("input", () => { if (active != null) { files[active] = $("editor").value; scheduleLive(); } });
// ---------- preview bundler: stitch every file into one HTML ----------
function bundle(map) {
let html = map["preview.html"];
if (html == null)
return `<!doctype html><meta charset=utf-8><body style="font:14px system-ui;color:#888;padding:2rem">No <code>preview.html</code> in the project — add one to render the object.</body>`;
// 1. config marker -> window.SCENE_CONFIG
html = html.replace(/<!--\s*include-config:\s*([^>]+?)\s*-->/g, (_, p) => {
const raw = map[p.trim()]; let json = "{}";
if (raw != null) { try { json = JSON.stringify(JSON.parse(raw)); } catch { json = "{}"; } }
return `<script>window.SCENE_CONFIG = ${json};<\/script>`;
});
// 2. texture marker -> window.SCENE_TEXTURE_SVG (svg as a data URL)
html = html.replace(/<!--\s*include-texture:\s*([^>]+?)\s*-->/g, (_, p) => {
const raw = map[p.trim()];
if (raw == null) return `<script>window.SCENE_TEXTURE_SVG = null;<\/script>`;
const url = "data:image/svg+xml;charset=utf-8," + encodeURIComponent(raw);
return `<script>window.SCENE_TEXTURE_SVG = ${JSON.stringify(url)};<\/script>`;
});
// 3. local <script src="…"> -> inline contents (CDN / importmap left untouched)
html = html.replace(/<script\b[^>]*\bsrc=["']([^"']+)["'][^>]*><\/script>/gi, (m, src) => {
if (/^(https?:)?\/\//i.test(src) || /^data:/i.test(src)) return m;
const raw = map[src];
if (raw == null) return m;
return `<script>\n${String(raw).replace(/<\/script/gi, "<\\/script")}\n<\/script>`;
});
return html;
}
// ---------- live preview ----------
let liveTimer = null;
function refreshPreview() {
if (active && files[active] !== undefined) files[active] = $("editor").value;
$("pvframe").srcdoc = bundle(files);
}
function scheduleLive() {
if (!$("live").checked) return;
clearTimeout(liveTimer);
liveTimer = setTimeout(refreshPreview, 450);
}
$("reset").addEventListener("click", () => $("pvframe").contentWindow?.postMessage({ type: "gptdiff3d:reset" }, "*"));
// ---------- export to a 3D-modelling file ----------
function triggerDownload(blob, filename) {
const a = document.createElement("a");
a.href = URL.createObjectURL(blob); a.download = filename;
document.body.appendChild(a); a.click(); a.remove();
setTimeout(() => URL.revokeObjectURL(a.href), 4000);
}
function requestExport(format) {
const w = $("pvframe").contentWindow;
if (!w) return;
$("exp-status").textContent = "exporting " + format + "…";
w.postMessage({ type: "gptdiff3d:export", format }, "*");
}
$("exp-glb").addEventListener("click", () => requestExport("glb"));
$("exp-obj").addEventListener("click", () => requestExport("obj"));
window.addEventListener("message", (e) => {
const d = e.data || {};
if (d.type === "gptdiff3d:exported") {
const blob = d.format === "obj"
? new Blob([d.text], { type: "text/plain" })
: new Blob([d.buffer], { type: "model/gltf-binary" });
triggerDownload(blob, d.filename);
$("exp-status").textContent = "saved " + d.filename;
setTimeout(() => { $("exp-status").textContent = ""; }, 3000);
} else if (d.type === "gptdiff3d:error") {
$("exp-status").textContent = "export error: " + d.message;
}
});
// ---------- diff rendering ----------
let curPhase = "";
function appendText(phase, chunk) {
if (!phase.startsWith("Generating")) return; // apply streams in parallel; show the meter, not text
const pane = $("diff");
if (phase !== curPhase) { curPhase = phase; pane.textContent = ""; }
pane.textContent += chunk; pane.scrollTop = pane.scrollHeight;
}
function renderDiff(diff) {
$("diff").innerHTML = "";
if (!diff.trim()) { $("diff").textContent = "(no diff produced)"; return; }
for (const line of diff.split("\n")) {
const span = document.createElement("span");
span.textContent = line + "\n";
if (/^\+\+\+|^---|^@@|^diff |^a\/|^b\//.test(line)) span.className = "hdr";
else if (line.startsWith("+")) span.className = "add";
else if (line.startsWith("-")) span.className = "del";
$("diff").appendChild(span);
}
}
function showChanges(added, removed, changed) {
const c = $("changes"); c.innerHTML = "";
const part = (cls, label, arr) => { if (!arr.length) return; const s = document.createElement("span"); s.className = cls; s.textContent = `${label} ${arr.join(", ")} `; c.appendChild(s); };
part("a", "＋ added", added); part("r", "－ removed", removed); part("c", "～ updated", changed);
if (!added.length && !removed.length && !changed.length) c.textContent = "No files changed.";
}
// ---------- run: diff → smartapply → reconcile → re-render ----------
async function run() {
const key = getKey(); if (!key) return;
if (active && files[active] !== undefined) files[active] = $("editor").value; // commit edits
undoSnapshot = JSON.parse(JSON.stringify(files));
$("run").disabled = true; $("undo").disabled = true; curPhase = ""; $("diff").textContent = ""; $("changes").textContent = "";
prog.inDone = prog.outDone = prog.cost = prog.liveIn = prog.liveOut = prog.liveCost = 0; paintUsage();
$("progress").style.display = "block"; document.querySelector("#progress .spin").style.display = "";
$("livenote").textContent = ""; $("phase").textContent = "starting…";
const t0 = performance.now();
const timer = setInterval(() => { $("elapsed").textContent = ((performance.now() - t0) / 1000).toFixed(1); }, 100);
try {
const diff = await generateDiff(buildEnvironment(files), $("goal").value, { apiKey: key, model: MODEL, callLlm: streamingCallLlm("Generating diff") });
renderDiff(diff);
const parsed = parseDiffPerFile(diff);
if (!diff.trim() || !parsed.length) {
$("changes").textContent = "⚠ The model returned no applicable diff. Try rephrasing the goal.";
} else {
const applyLlm = streamingCallLlm("Applying diff");
const before = { ...files };
const updated = await smartapply(diff, files, {
apiKey: key, model: APPLY,
callLlmForApply: (p, o, d, m, o2) => callLlmForApply(p, o, d, m, { ...o2, callLlm: applyLlm }),
});
const beforeKeys = new Set(Object.keys(before)), afterKeys = new Set(Object.keys(updated));
const added = [...afterKeys].filter((k) => !beforeKeys.has(k));
const removed = [...beforeKeys].filter((k) => !afterKeys.has(k));
const changed = [...afterKeys].filter((k) => beforeKeys.has(k) && before[k] !== updated[k]);
files = updated;
if (active == null || files[active] === undefined) active = fileOrder()[0] || null;
renderTabs(); loadEditor(); refreshPreview();
showChanges(added, removed, changed);
$("undo").disabled = false;
}
$("phase").textContent = "done"; document.querySelector("#progress .spin").style.display = "none";
} catch (e) {
$("changes").textContent = "Error: " + e.message;
$("progress").style.display = "none";
} finally {
clearInterval(timer); $("run").disabled = false;
}
}
$("run").addEventListener("click", run);
$("goal").addEventListener("keydown", (e) => { if (e.key === "Enter") { e.preventDefault(); if (!$("run").disabled) run(); } });
$("undo").addEventListener("click", () => {
if (!undoSnapshot) return;
files = undoSnapshot; undoSnapshot = null;
if (active == null || files[active] === undefined) active = fileOrder()[0] || null;
renderTabs(); loadEditor(); refreshPreview();
$("undo").disabled = true; $("changes").textContent = "↶ reverted to the previous version.";
});
// ---------- boot ----------
(async () => {
renderModelRow("diff"); renderModelRow("apply");
try { await handleRedirect(); } catch (e) { $("status").textContent = "sign-in error: " + e.message; }
renderAuth();
files = await loadSeed();
active = fileOrder().includes("scene.json") ? "scene.json" : (fileOrder()[0] || null);
renderTabs(); loadEditor(); refreshPreview();
loadModels();
})();
</script>
</body>
</html>