How to Render Crowds in 3ds Max with Anima: Step-by-Step

Getting Started with Anima: A Step-by-Step Crowd Rendering Tutorial

If you have never used Anima before, the plugin can feel overwhelming. The terminology is unfamiliar, the workflow is different from hand animation, and the documentation assumes prior crowd simulation experience.

This article removes that barrier. We walk through Anima from first install to final rendered frame, assuming you know 3ds Max but have zero crowd simulation background.

By the end, you will have rendered your first crowd scene, understand how Anima actors work, and know exactly what to do when something breaks.

Step 1: Install Anima for 3ds Max

Anima comes as a plug-in installer from AXYZ Design. Download the installer compatible with your 3ds Max version (2022, 2023, 2024, or 2025) from the AXYZ Design website at https://www.chaos.com/anima.

Run the installer. It will register the Anima plug-in with 3ds Max and create a resource directory on your local machine. This resource directory holds the digital actor library—the pre-built human models and animations that Anima uses.

After installation, restart 3ds Max. Go to Customize > Plug-in Manager and verify that Anima appears in the plug-in list with a green checkmark. If it does not appear, re-run the installer and ensure you selected the correct 3ds Max version.

Step 2: Explore the Anima Designer and Actor Library

Before opening 3ds Max, familiarize yourself with the Anima Designer, a separate application for building and previewing Anima actors. Launch Anima Designer from your Windows Start menu or Applications folder.

The Anima Designer shows the built-in actor library: business suits, casual wear, sports wear, children, elderly, etc. Browse these actors. Each has multiple animation variations (walking, standing, running, sitting) and clothing options.

Download a few actors you like. These actors will be your raw material for the crowd scene. We recommend starting with:

One business character (e.g., "Business Male 01")
One casual character (e.g., "Casual Female 02")
One alternative (e.g., "Tourist Male 01")

These three can be varied through Anima's instancing system to create visual diversity.

Step 3: Create a Basic Scene in 3ds Max

Open 3ds Max and create a new scene. Build a simple architectural environment—nothing complex. A rectangular plaza or interior space is sufficient for learning.

Create a ground plane using a standard plane primitive. Make it at least 50 × 50 units. This will serve as the surface where crowds walk.

Add basic architectural elements: walls, columns, or benches. Keep it simple. The goal is not to build a masterpiece environment, but to have a definable walking area for the crowd.

Step 4: Set Up Anima Crowd Paths

Crowds in Anima move along paths. Define these paths using spline objects in 3ds Max.

Go to Create > Shapes > Splines. Choose a spline type (Line or Bezier). Draw paths across your plaza or corridor where you want characters to walk.

For a plaza, create:

One path running east-west across the center
One path running north-south across the center
One path circling the perimeter

These paths define where Anima characters will move. Characters will not wander randomly; they will follow these splines at controlled speeds.

Name each path clearly: "plaza_center_ew", "plaza_center_ns", "plaza_perimeter". This helps when configuring crowd placement later.

Step 5: Create an Anima Crowd Group

In the 3ds Max scene, go to Create > Particle Systems > Anima Crowd (or access it through the Anima menu if it differs in your version).

This creates a crowd group object—a single object that manages all the characters on a particular path. Each path needs its own crowd group.

Select the crowd group and go to the Anima Crowd Properties panel (usually on the right side in the Modify tab). Configure:

Actor: Select the first digital actor you downloaded (e.g., "Business Male 01")
Path Object: Select the spline path this crowd group will follow
Count: Set to 10 (ten characters on this path)
Density: Leave at default (0.5 characters per unit of path length)

In the viewport, you should now see 10 characters standing or walking along your defined path. They might appear as simple silhouettes in the viewport preview, which is normal.

Step 6: Repeat for Multiple Actors and Paths

Create additional crowd groups for your other actors. Use the same paths or create new ones:

Crowd Group 1: Business Male 01, 10 characters, path 1
Crowd Group 2: Casual Female 02, 8 characters, path 2
Crowd Group 3: Tourist Male 01, 6 characters, path 3

Do not use the same actor more than once in the same crowd group. Instead, create separate groups so you can vary animation timing and placement. This creates visual diversity.

You should now have approximately 24 characters scattered across your scene following different paths.

Step 7: Configure Materials and Render Setup

Before rendering, set up materials. Go to Material Editor. Create a new material and assign it to your crowd groups.

If you are using V-Ray or Corona (recommended for Anima):

V-Ray: Create a V-Ray material. Anima textures will auto-populate when you render; you do not need to manually assign texture maps.
Corona: Create a Corona material. Similar to V-Ray, Corona detects Anima textures automatically.

If you are using Redshift or Octane, material setup is more involved. You will need to manually configure PBR properties (diffuse color, roughness, metallic) based on the actor definitions provided by AXYZ Design. For the smoothest workflow with Anima, V-Ray and Corona are highly recommended.

For a first test render, keep materials simple. Just assign a basic V-Ray or Corona material to the crowd groups; Anima will handle the texture detail.

Step 8: Set Your Camera and Lighting

Position your camera to view the crowd scene. A typical crowd shot frames the plaza or interior with the crowd visible in the foreground and middle ground.

Set up basic lighting: a key light (sun), fill light, and sky light. Professional crowd rendering benefits from proper lighting, but for a test render, simple 3-point lighting is sufficient.

Step 9: Render a Test Frame Locally

Go to Render > Render or press F10. Set render resolution to something modest (1920×1080) and render quality to medium (around 10–20 samples per pixel for V-Ray or Corona).

This test should complete in 1–5 minutes depending on your hardware. You are looking for:

Do characters appear in the viewport and in the render?
Are textures visible (clothing colors, skin)?
Are there obvious errors or black areas?

If this test frame renders successfully, you have successfully created your first Anima crowd scene. Congratulations.

Step 10: Common First-Time Mistakes and Fixes

Problem: Characters do not appear in the render. Check that Anima actors are installed. Verify in the crowd group properties that an actor is selected. Confirm that the crowd group count is greater than zero.

Problem: Characters appear but are black or untextured. This usually means the texture video files are missing from the resource folder. Reinstall Anima actors. In the crowd group properties, click the folder icon next to the actor selector and ensure you are pointing to a valid actor file.

Problem: Render is extremely slow (30+ minutes for one frame). You likely have too many characters or too-high LOD settings. Reduce the crowd count to 5–10 characters for testing. Lower the LOD polygon target in Anima settings to 2,000–3,000 polygons.

Problem: Characters overlap or phase through walls. Your path splines may be too close to obstacles. Offset the spline paths away from walls. Increase the character avoidance radius in Anima settings to prevent overlap.

Step 11: Iterating on Your Scene

Once your first test render succeeds, iterate. Add more characters. Refine lighting. Adjust path placements. Render additional test frames to verify changes.

At this stage, you are building familiarity with the tool. There is no "correct" crowd setup; only what works for your specific scene and deadline.

Step 12: Preparing for Render Farm Submission

When your local test renders look acceptable, prepare for farm submission. This is where render farms become valuable—they finish your job in minutes instead of hours.

Collect all Anima actor files into a single folder called resource_cache. This folder should contain:

All .4d character files you used
All texture video files
Any external geometry references

Create a folder structure:

resource_cache/
├── anima_actors/
│   ├── business_male_01.4d
│   ├── casual_female_02.4d
│   └── tourist_male_01.4d

Zip your 3ds Max scene file (.max) and your resource_cache folder together. Upload both to your chosen render farm.

On the render farm interface, specify:

Scene file: your_scene.max
Render engine: V-Ray or Corona (whichever you used locally)
Output format: EXR or PNG
Frame range: the frames you want to render

Submit the job. The farm will handle rendering across multiple nodes. A 400-frame sequence that would take 24 hours locally will render in approximately 20–30 minutes on a professional farm with 256+ CPU cores.

Beginner Troubleshooting: Farm Submission Issues

Farm reports "Anima license not found" error. Your farm does not have Anima licenses installed on render nodes. Contact farm support and request Anima PRO or Anima ALL licenses. Many farms offer this as an add-on service.

Farm reports "Actor not found" in logs. Your resource_cache folder is incomplete or paths are incorrect. Verify that all .4d actor files are present. Re-check folder structure matches your local setup.

Rendered frames are black. Texture video files are missing from resource_cache. Verify all .exr or video files are uploaded. Test locally with the same resource structure before farm submission.

FAQ: Beginner Questions About Anima

Q: Do I need special hardware to use Anima locally? A: No. Anima works on standard workstations. For complex scenes with many characters, 16+ GB of RAM and a multi-core CPU (6+ cores) is recommended. A GPU is optional.

Q: Can I use Anima with 3ds Max versions older than 2022? A: No. Anima requires 3ds Max 2022 or later. Older versions are not supported.

Q: How many characters can I realistically render in one scene? A: Depends on your hardware and render time budget. Locally, 10–50 characters is manageable. On a render farm, 200–500 characters is practical.

Q: Do I need Anima Designer to use Anima in 3ds Max? A: No. Anima Designer is optional. It is useful for previewing actors and understanding the library, but you can import actors directly into 3ds Max without it.

Q: What render engines work well with Anima? A: V-Ray and Corona have native Anima integration and are strongly recommended. Redshift and Octane work but require manual material setup. Arnold has limited support.

Q: How do I create my own custom Anima actors? A: This is an advanced workflow beyond beginner scope. Consult AXYZ Design documentation on the Anima Actor Editor for custom character creation.

Related Resources

Last Updated: 2026-03-18

Anima Plugin Tutorial: How to Render Crowd Animation in 3ds Max