# How does metaballs work?

## How does metaballs work?

In computer graphics, metaballs are organic-looking n-dimensional isosurfaces, characterised by their ability to meld together when in close proximity to create single, contiguous objects.

## What are metaballs used for?

Metaballs are a nifty, ancient piece of 3D technology that is useful for creating blobs. (Similar to lumps of clay, eh?) You create simple primitive shapes and scale and rotate them to block out your character’s shape.

How do you use a grasshopper Metaball?

The metaball tool needs a set of points to start. You can use the “point” tool (params>point) and right click on it and choose multiple points or define the points in rhino and import them into Grasshopper 3d. You can also use the Gene Pool tool (Params>Util) to easily produce several values for the Charge input.

### What do you need to know about a Metaball?

I will begin with a brief review of what a metaball is, for newbies. A metaball is an isosurface in 3D space. Basically, define a function in 3D space, which takes as input the x,y,z coordinates of a point, and outputs a floating point value.

### How are metabolic equations used in the lab?

Equations are based on relating mechanical work rate to their metabolic equivalents Equations are appropriate for general clinical and lab usage Estimation of Energy Expenditure Equations can be used for: Estimating or predicting energy expenditure (Weight loss)

What does a Metaball do in 3D space?

A metaball is an isosurface in 3D space. Basically, define a function in 3D space, which takes as input the x,y,z coordinates of a point, and outputs a floating point value.

## What do metaballs look like in particle simulations?

Reading a bit about particle simulations on Wikipedia, I stumbled upon metaballs. In 3D, metaballs looks something like this: This looked like it had the potential to yield some cool behaviour, so I decided to dive in. To start, I just wanted some circles bouncing around, like this: Sweet. The next step is to make these things blobby.