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Redraw vs Corona Render: Comparison for Architects 2026
Redraw vs Corona Render: compare time, cost and output. See why AI replaces 4 hours of rendering with 40 seconds in 2026.
6 min
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15.05.2026
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Corona Render carved out a unique space in the market. Together with V-Ray (both from Chaos Group), they were the absolute references for those seeking photorealism in architecture. No other engine delivered that level of quality in materials, lighting and finishing.
Corona had one advantage over V-Ray: it was a bit more intuitive. Fewer exposed parameters, cleaner output with less configuration. But “a bit more intuitive” still meant months of learning and hours of rendering per image.
In 2026, the scenario is different.
What made Corona Render special
Corona stood out for its lighting quality. Its path tracing algorithm produced results that looked natural without requiring as much manual manipulation as V-Ray. For those doing interiors and natural light scenes, it was the obvious choice.
But like every traditional render engine, Corona carried limitations that the market accepted for lack of alternatives.
First, it’s a plugin. It runs inside 3DS Max or Cinema 4D. You don’t use Corona alone. You need to pay the Corona license plus the host software license. Two subscriptions that hit hard for beginners and smaller studios.
Second, time. An interior scene with Corona can take 40 minutes to 4 hours depending on complexity. While it renders, your machine is occupied. Client asked for a finish variation? Back to the start.
Third, hardware. Corona is CPU-based (unlike V-Ray which has GPU mode). That means the more processor cores, the better. A Ryzen 9 or Threadripper isn’t cheap. We’re talking about US$ 1,500 to US$ 4,000 in hardware to run with quality.
And software pricing: Corona Solo costs around US$ 395/year. Corona Premium, which unlocks extras like fluids and VFX, goes for US$ 515/year. Add 3DS Max (US$ 235/month from Autodesk) and the annual cost easily passes US$ 3,000.
Chaos Group itself read the market. They noticed simpler software like Lumion and Twinmotion were taking clients who didn’t need (or didn’t want) all that complexity. The answer was buying Enscape and trying to offer something faster within their ecosystem. It was a silent acknowledgment that the old model was losing ground.
When AI entered the game
The turning point came when AI tools for architecture started delivering results that were “good enough,” then “surprising,” then “hyper-realistic.” In months, not years.
Redraw was a pioneer in this movement. AI trained specifically for architecture, engineering and interior design. It’s not generic AI generating pretty but invented images. It’s AI that understands the project, respects geometry and proportions, and renders with fidelity.
And it does this in 20 to 40 seconds. Without installing anything. Without configuring material by material. Without powerful hardware.
The work that took hours between setup and processing with Corona, AI solves in minutes. It’s not an incremental improvement. It’s a category change.
Comparison: Corona Render vs Redraw
| Criteria | Corona Render | Redraw |
|---|---|---|
| Time per render | 40 min to 4 hours | 20 to 40 seconds |
| Required hardware | Powerful multi-core CPU, 32 GB+ RAM | Any PC with internet |
| Annual cost (software) | ~US$ 395 (Corona) + 3DS Max/C4D license | From US$ 180/year (US$ 15/month) |
| Hardware cost | US$ 1,500 to US$ 4,000 | Zero (runs in browser) |
| Learning curve | Medium-high (easier than V-Ray, still complex) | Very low (upload + generate) |
| Processing type | CPU-based (local) | AI cloud |
| Works standalone? | No (plugin for 3DS Max/Cinema 4D) | Yes, directly in browser |
| Fast variations | 30+ min per variation | 30 sec per variation |
| Remote access | No | Yes, 100% cloud |
The real math
For a studio with 2 professionals delivering 40 renders per month:
With Corona Render:
2 Corona Premium licenses: US$ 1,030/year
2 3DS Max licenses: US$ 5,640/year
Hardware for 2 stations: ~US$ 6,000/year (amortized)
Render time: ~80 hours/month
Total: ~US$ 12,670/year + 80 hours/month idle
With Redraw:
Expert Plan (2 users): US$ 384/year
Hardware: laptops they already have
Render time: ~25 minutes/month
Total: US$ 384/year + 25 minutes
The difference is brutal. Over US$ 12,000 per year and almost 80 monthly hours of productivity returned. Even if you cut 3DS Max from the bill, Corona alone with hardware still costs over US$ 7,000/year. Against US$ 384.
For those who use Corona and like the result
If you master Corona and have your setup running, Redraw works as an accelerator. Rendered with Corona? Drop it into Redraw’s Enhance Render. In 30 seconds, textures and lighting are improved without needing to re-render the entire scene.
Client asked for a night version of what you already delivered? Do it directly in Redraw. Need 5 material variations? 5 times 30 seconds. Done.
But the question worth asking is: of your projects, how many really need path tracing with manual configuration of each bounce of light? For presentations, posts, portfolio and day-to-day deliveries, AI solves it. And solves it faster and cheaper.
Frequently Asked Questions
Does Redraw replace Corona Render in architecture projects?
For most projects, yes. Redraw delivers photorealistic images in 20 to 40 seconds versus 40 minutes to 4 hours with Corona, without requiring powerful hardware or an additional license. Corona still has its place in highly complex animations and scenes that demand absolute control over every light bounce, but for commercial presentations, schematic design, variations and portfolio, Redraw delivers equivalent quality in a fraction of the time.
How much does Corona Render cost per year compared to Redraw?
Corona Solo costs around US$ 395/year and Corona Premium US$ 515/year, prices that do not include the mandatory 3DS Max or Cinema 4D license (another US$ 2,800/year) or the powerful hardware (US$ 1,500 to US$ 4,000). Redraw starts at US$ 15/month (US$ 180/year), runs in the browser without dedicated hardware and skips any host software. Annual savings exceed US$ 12,000 for studios with 2 workstations.
Can I enhance a Corona render using Redraw?
Yes. Redraw’s Enhance Render feature accepts images from any software, including Corona, V-Ray, Lumion and Enscape. You upload the existing render and in about 30 seconds receive an enhanced version with sharper textures, lighting and clarity, without re-rendering the entire scene in Corona. It’s the fastest path for those already invested in a traditional pipeline who want speed on variations.
Does Corona Render work standalone or does it need another software?
Corona Render is a plugin and does not work standalone. It requires an active license of 3DS Max or Cinema 4D to run, adding two subscriptions to the budget. Redraw, on the other hand, is a standalone platform that runs directly in the browser, with no installation and no host software dependency, drastically reducing total cost and setup time for solo architects and 1-to-10-person studios.
What is the best alternative to Corona Render in 2026?
The best alternative to Corona Render in 2026 is Redraw, an AI platform trained specifically on architecture, engineering and interior design, with localized pricing, multilingual support and integration with the standard SketchUp, Revit and Archicad workflow. Redraw delivers photorealistic renders in seconds instead of hours, without powerful hardware or a host software license, and it’s the path most solo offices and small studios are adopting to scale deliveries.
Does AI rendering have enough photorealistic quality to present to the final client?
Yes. The latest generations of Redraw produce images indistinguishable from Corona or V-Ray renders in the vast majority of cases: residential, commercial, hospitality, retail and interiors. The end client decides on emotion before reason, and what matters is the visual narrative of light, texture and ambience, all delivered in minutes by Redraw. Traditional renders are reserved only for architectural competitions and real estate catalogs with the most demanding technical requirements.
Try Redraw → redraw.pro
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