Playing Magneto in 3ds Max
Have you ever wanted to simulate the behavior of magnets in 3ds Max only to discover the software doesn't come with comic book physics included? 🧲 Don't worry, with a bit of ingenuity, controllers, and some Wire Parameters, you can trick reality enough to achieve that much-desired attraction and repulsion effect.
The Key Lies in Distance... and Signs
To achieve this effect, place a helper or point on the face of each object where you want to simulate the magnetic pole. Assign each one a value of "positive" or "negative" using custom attributes. Then, use expressions or scripts to measure the distance between those points and apply a proportional force: if the poles are opposite, they attract; if they are the same, they repel. 🎯
How to Make Them Approach or Flee From Each Other
There are several ways to move the objects:
- Apply Position Constraints adjusted with mathematical expressions based on distance.
- Use Wire Parameters to connect attributes and control positions.
- Incorporate scripts that calculate direction vectors and movement intensity.
You can also turn to MassFX: it doesn't have magnets, but it accepts external forces. With a bit of scripting, you can push or pull objects based on their proximity and orientation. The result is a semi-automatic system that seems more science than science fiction ⚡.
Want More Control? Customize Everything
With the Parameter Editor you can add custom attributes to the rig: pole type, effect intensity, influence radius, etc. This allows you to adjust the behavior without touching the base script every time something changes. Less chaos, more control 🎛️.
The illusion is magnetic... until someone moves a helper and everything goes to pieces.
Magnetism Proof Against Curious Artists
Simulating magnetic forces in 3ds Max requires millimeter precision. It's not a native function, but it is an achievable effect with some logic and scripting. That said, if you share the scene with someone who touches everything without asking, it's better to freeze the helpers 🔒.
Because deep down, nothing says "professional simulation" like watching two boxes approach romantically… until one flies away as if it owed money 😅.