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fix(blender): make RunPod optional, fix script-only generation 

RunPod was hard-gated — returned 503 when RUNPOD_API_KEY missing,
blocking even LLM script generation. Now generates script via Ollama
regardless, only attempts RunPod render if key is configured. Health
check returns warnings (non-blocking) vs issues (blocking). Default
model switched to qwen2.5:14b (available on server). Regex also
handles non-python-tagged code blocks.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Jeff Emmett 2026-03-25 15:38:49 -07:00
parent 59d2cc9933
commit 2f3a4a13dc
2 changed files with 14 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/folk-blender.ts
View File

@ -377,6 +377,8 @@ export class FolkBlender extends FolkShape {
if (!h.available && this.#generateBtn) {
this.#generateBtn.disabled = true;
this.#generateBtn.title = (h.issues || []).join(", ") || "Blender service unavailable";
} else if (h.warnings?.length && this.#generateBtn) {
this.#generateBtn.title = h.warnings.join(", ");
}
}).catch(() => {
if (this.#generateBtn) {

23
server/index.ts
View File

@ -1569,7 +1569,7 @@ const RUNPOD_API_KEY = process.env.RUNPOD_API_KEY || "";
app.get("/api/blender-gen/health", async (c) => {
const issues: string[] = [];
if (!RUNPOD_API_KEY) issues.push("RUNPOD_API_KEY not configured");
const warnings: string[] = [];
const OLLAMA_URL = process.env.OLLAMA_URL || "http://localhost:11434";
try {
const res = await fetch(`${OLLAMA_URL}/api/tags`, { signal: AbortSignal.timeout(3000) });
@ -1577,12 +1577,11 @@ app.get("/api/blender-gen/health", async (c) => {
} catch {
issues.push("Ollama unreachable");
}
return c.json({ available: issues.length === 0, issues });
if (!RUNPOD_API_KEY) warnings.push("RunPod not configured — script-only mode");
return c.json({ available: issues.length === 0, issues, warnings });
});
app.post("/api/blender-gen", async (c) => {
if (!RUNPOD_API_KEY) return c.json({ error: "RUNPOD_API_KEY not configured" }, 503);
const { prompt } = await c.req.json();
if (!prompt) return c.json({ error: "prompt required" }, 400);
@ -1595,7 +1594,7 @@ app.post("/api/blender-gen", async (c) => {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
model: process.env.OLLAMA_MODEL || "llama3.1",
model: process.env.OLLAMA_MODEL || "qwen2.5:14b",
prompt: `Generate a Blender Python script that creates: ${prompt}\n\nThe script should:\n- Import bpy\n- Clear the default scene\n- Create the described objects with materials\n- Set up basic lighting and camera\n- Render to /tmp/render.png at 1024x1024\n\nOnly output the Python code, no explanations.`,
stream: false,
}),
@ -1605,18 +1604,22 @@ app.post("/api/blender-gen", async (c) => {
const llmData = await llmRes.json();
script = llmData.response || "";
// Extract code block if wrapped in markdown
const codeMatch = script.match(/```python\n([\s\S]*?)```/);
if (codeMatch) script = codeMatch[1];
const codeMatch = script.match(/```(?:python)?\n([\s\S]*?)```/);
if (codeMatch) script = codeMatch[1].trim();
}
} catch (e) {
console.error("[blender-gen] LLM error:", e);
}
if (!script) {
return c.json({ error: "Failed to generate Blender script" }, 502);
return c.json({ error: "Failed to generate Blender script — is Ollama running?" }, 502);
}
// Step 2: Execute on RunPod (headless Blender) — optional
if (!RUNPOD_API_KEY) {
return c.json({ script, render_url: null, blend_url: null });
}
// Step 2: Execute on RunPod (headless Blender)
try {
const runpodRes = await fetch("https://api.runpod.ai/v2/blender/runsync", {
method: "POST",
@ -1633,7 +1636,6 @@ app.post("/api/blender-gen", async (c) => {
});
if (!runpodRes.ok) {
// Return just the script if RunPod fails
return c.json({ script, error_detail: "RunPod execution failed" });
}
@ -1644,7 +1646,6 @@ app.post("/api/blender-gen", async (c) => {
blend_url: runpodData.output?.blend_url || null,
});
} catch (e) {
// Return the script even if RunPod is unavailable
return c.json({ script, error_detail: "RunPod unavailable" });
}
});