Best Render Farm for Architecture Network Rendering: Distributed vs Cloud Farm
Network rendering — spreading V-Ray or Corona renders across your office PCs — sounds like a free render farm. In practice, it rarely works well for architecture studios. V-Ray Distributed Rendering (DR) across 3 office workstations (RTX 3060 + RTX 2070 + GTX 1070) delivers roughly 2× speed improvement over a single machine. But those same 3 machines produce approximately 25% of the GPU power of a single RTX 4090 on iRender. A 4K V-Ray interior: ~15 minutes on iRender’s RTX 4090 ($2.05) vs ~25 minutes across 3 office PCs ($0 direct cost, but your colleagues can’t use their machines). Cloud farms also scale on demand — need 10× more power for a deadline? Rent it. Your office network is what it is.
| Approach | V-Ray 4K Interior | Direct Cost | Hidden Cost | Scalable? |
|---|---|---|---|---|
| Single office PC (RTX 3060) | ~45 min | $0 | Your PC is locked | ❌ Fixed |
| V-Ray DR (3 office PCs) | ~25 min | $0 | 3 PCs locked + IT setup | ❌ Fixed |
| iRender single RTX 4090 | ~15 min | $2.05 | None — local PCs free | ✅ Rent more servers |
| RebusFarm (SaaS batch) | ~5–12 min | $1.50–3.50 | None | ✅ Unlimited nodes |
Why Does Office Network Rendering Disappoint Architects?
Three reasons it works better in theory than practice: (1) Your weakest PC is the bottleneck. V-Ray DR is limited by the slowest machine in the network. That old GTX 1070 contributes a fraction of the work while taking the same coordination overhead. (2) Your colleagues need their computers. Network rendering ties up every PC. During office hours, that’s 3 people unable to work. After hours, it only helps if someone stays late to set it up. (3) IT maintenance is a headache. Different GPU drivers, different V-Ray versions, firewall conflicts, Windows updates mid-render — the “free” network farm requires constant babysitting that cloud farms simply don’t.
We’ve seen studios spend 10–15 hours per month maintaining their office network render setup. At those labor hours, cloud rendering at $8.20/hour would have paid for itself in GPU time alone — without the IT frustration.
When Does Office Network Rendering Still Make Sense?
To be fair, office DR works well in one specific scenario: studios with 3+ matching high-end workstations (all RTX 4070 or better, same V-Ray version, competent IT support) rendering overnight when no one needs the machines. In this setup, you get genuine free rendering power — 3× RTX 4070 = approximately 1.5× the performance of a single cloud RTX 4090. For studios that already own the hardware, this overnight DR approach plus cloud for daytime/deadline rendering is the most cost-effective hybrid.
For everyone else — studios with mixed hardware, no IT person, or colleagues who complain about locked PCs — cloud is simpler, faster, and ultimately cheaper when you factor in the time cost of maintenance.
Frequently Asked Questions
- Can I combine office network rendering with cloud farms?
Not simultaneously on the same frame — V-Ray DR doesn’t connect to cloud servers as network nodes. But you can use both strategically: office DR for overnight batch renders (free, slow) and cloud for daytime deadline renders (fast, paid). Many studios also render test images on local machines during the day, then submit final batches to RebusFarm or iRender for high-quality output. The two approaches complement, not compete.
2. Does network rendering work for Lumion or Enscape?
No. Lumion, Enscape, Twinmotion, and D5 Render are single-GPU applications — they cannot distribute rendering across multiple machines on a network. This is a fundamental design limitation. For these tools, your only options are: render on one local GPU (slow) or rent one cloud GPU (fast). There is no network rendering equivalent. Cloud GPU (iRender) is the only way to accelerate these applications beyond your single local GPU.
3. How many office PCs equal one iRender RTX 4090?
Approximately 4–5 RTX 3060 workstations in V-Ray DR equal the rendering throughput of one RTX 4090 on iRender. However, DR scaling isn’t perfectly linear — network overhead reduces efficiency by 15–25%. In practice, you’d need 5–6 RTX 3060 PCs to match one cloud RTX 4090. Factor in the electricity ($50–100/month for 5 PCs running full-load), maintenance time, and colleague disruption — cloud wins for all but the largest, best-equipped studios.
Related post: Best Render Farm for Architecture on Budget: Under $50 Rendering on Cloud
