How MAX2C4D Works
Install once, then drop the .max on Cinema 4D. No export step, nothing to prepare — the whole thing takes under a minute for most scenes.
First: who opens the file?
MAX2C4D offers three routes, and they all answer one question — who decodes the .max. Pick once in the import window and forget it.
Route 1 — default
Native reader
.max → MAX2C4D → C4D
MAX2C4D decodes the file itself. No export step, nothing to prepare. The shortest route, and the only one on Mac.
Route 2 — Windows
Through 3ds Max
.max → 3ds Max → export → C4D
3ds Max opens in the background and runs the exporter, then C4D imports what it wrote. Slower, but Max itself supplies the values — the most complete route.
Route 3 — teams
Existing export
export folder → C4D
The export already exists — you made it yesterday, or a colleague with Max did. One Max seat serves the whole studio instead of one per artist.
Routes 2 and 3 are the same route cut in half: route 2 builds the export then imports it, route 3 imports one that already exists. Route 1 involves no export at all.
Prerequisites
Cinema 4D is the only hard requirement. 3ds Max is optional — install it only if you want route 2. Of the three renderers, you only need the one you want to render with on the Cinema 4D side.
Cinema 4D — required
Version 2024 to 2026. On Mac, Apple Silicon.
3ds Max — optional
Version 2020 to 2026, only for the 3ds Max route. The native reader needs nothing.
Corona — for Corona scenes
Version 7 to 12+ (Max). Corona for C4D for native Corona materials. Falls back to Redshift if not installed. Corona materials guide →
V-Ray — for V-Ray scenes
V-Ray 5 to 7+ installed in 3ds Max for the 3ds Max route; the native reader opens scenes saved with V-Ray 3 or newer. V-Ray for Cinema 4D for native V-Ray materials. Falls back to Corona, then Redshift, if not installed. What V-Ray data transfers to Cinema 4D →
Redshift — for Redshift scenes
Redshift for Max on the export side. Nothing to install on the C4D side — Redshift ships with Cinema 4D — but the Redshift target needs C4D 2024.4 or newer. What Redshift data transfers to Cinema 4D →
Download & Install
On Windows, download the MAX2C4D installer and run it. It sets up the Cinema 4D plugin, and the 3ds Max exporter as well if Max is on the machine — no manual file copying, no folder hunting.
On macOS the download is an installer package, signed and notarized by Apple, so it opens without a security warning. Double-click it and the plugin is put into every compatible Cinema 4D on the machine, with nothing to copy by hand and no Terminal command. Quit Cinema 4D before installing, and launch it at least once beforehand so it has created its preferences.
Once installed, the plugin shows up in Cinema 4D's Extensions menu, and .max appears in the File > Open dialog. Enter your license key on first launch in C4D.
Drop the .max on Cinema 4D
Drag the file onto Cinema 4D, or use File > Open or File > Merge. You can also click IMPORT in the MAX2C4D window with Read with: Native reader selected. There is no export step and nothing to prepare.
What it accepts:
- A single
.max, or several at once .ziparchives, listed without extracting so you pick which scene to open, and.rarthe same way on Windows- Scenes saved by 3ds Max 2012 and earlier as long as they use V-Ray 3 or newer, and scenes saved by Corona 5, 6 and 15
- A file that cannot be read is named and skipped — it no longer takes the rest of the batch down
Speed depends on the scene. A 7.9 million polygon interior opens in about 87 seconds on the native reader. If an archive holds a Corona and a V-Ray version of the same scene, only the one matching your chosen engine is ticked.
Pick Your Render Engine
One dropdown decides which engine the materials are rebuilt for: Corona, V-Ray or Redshift. Or let it follow the engine the 3ds Max scene was made with, or the one your current document already uses — handy when you work in one engine and buy assets made in another.
The plugin then reconstructs the whole scene: materials with the full node graph, lights with correct intensity and colour, cameras with DOF and exposure, and render settings including GI solver, denoiser and tone mapping. Anything a target engine genuinely cannot receive is named in the import log with its value, rather than dropped in silence.
Hit Render
Your scene renders like it did in 3ds Max. Same Corona materials, same lighting setup, same render configuration. No re-noding, no guessing values from screenshots, no rebuilding materials from scratch.
Tips & Troubleshooting
Corona not installed in C4D?
MAX2C4D falls back to native Redshift, which ships with Cinema 4D, so you still get a real node graph rather than an approximation. Only if Redshift is unavailable too (C4D older than 2024.4) does it drop to C4D Standard/Physical with the closest property mapping.
Textures on a network drive?
The exporter resolves UNC paths, mapped drives, Synology NAS, and OneDrive placeholders. All textures are copied locally — no broken links after export.
Very large scenes?
A 7.9 million polygon interior opens in about 87 seconds on the native reader. On the 3ds Max route, geometry now transfers through Alembic instead of OBJ: a 235 MB scene went from 107 seconds to 24, and Cinema 4D uses about a third less memory to open it. Tested on 847-object scenes with 200+ materials — no crashes, no heap overflows.
Scene saved with "Compress on save"?
That option encodes the file with a codec Cinema 4D does not ship, so the native reader cannot open it — 5 of the 183 files in our test corpus were affected. MAX2C4D names the option and gives you the two ways round it: re-save from 3ds Max with the box unticked, or import through the MAX2C4D window using the 3ds Max route.
What needs the 3ds Max route?
Two things: VRayClipper and ForestPack scatters. Everything else — instances, materials, textures, lights, cameras, environment, render settings, Chaos Scatter, proxies, decals, VRayFur, splines and modifiers — comes across on the native reader too.
VRay materials in the scene?
Fully supported. 15+ material types and 25+ shader types convert to native VRay C4D equivalents. ~130 render settings, VFB2 layers, lights, cameras, proxies all transfer. Falls back to Corona if VRay C4D isn't installed.
Renderer selection
MAX2C4D auto-detects whether your scene uses Corona, V-Ray or Redshift. You can also force a specific renderer via the dropdown in the import dialog: Auto, Corona, V-Ray, or Redshift. Choosing Redshift converts a V-Ray or Corona scene to native Redshift as well.
MAX2C4D does not appear on macOS?
The Mac download is an installer package signed and notarized by Apple, so macOS no longer blocks anything. Two conditions matter. Cinema 4D must have been launched at least once before you install, because the installer puts the plugin next to its preferences and those are created on first launch. And Cinema 4D must be closed while you install, otherwise it keeps the previous version loaded. In both cases the installer stops and says so rather than reporting success. It installs into Cinema 4D 2024 and newer only: older versions run an older Python and could never load the plugin. If it still does not show up in the Extensions menu, open Extensions > Console, Python tab, and send us the lines starting with [MAX2C4D].
Keep Max alive between imports
Enable "Keep Max alive" in the import dialog to keep 3ds Max running between consecutive imports — saves 30-60 seconds of startup time per scene.
Preserve your C4D render settings?
Check "Override render settings" to keep your current Cinema 4D resolution, Corona GI, bloom, glare, tone mapping, and other render settings instead of importing from Max.
Stop rebuilding your
entire scene by hand.
Every hour you spend rebuilding materials, relinking textures, and reconfiguring lights and render settings is an hour you're not rendering, not iterating, not billing. MAX2C4D pays for itself on the first scene.
1-year license — not a subscription. Nothing renews automatically.