Box2D: b2Filter Struct Reference

| Box2D 2.4.1 A 2D physics engine for games

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Public Attributes | List of all members
b2Filter Struct Reference

This holds contact filtering data. More...

`#include <b2_fixture.h>`

## Public Attributes
uint16 | categoryBits
| The collision category bits. Normally you would just set one bit.
uint16 | maskBits
int16 | groupIndex

## Detailed Description

This holds contact filtering data.

## Member Data Documentation

## ◆ groupIndex

int16 b2Filter::groupIndex

Collision groups allow a certain group of objects to never collide (negative) or always collide (positive). Zero means no collision group. Non-zero group filtering always wins against the mask bits.

## ◆ maskBits

uint16 b2Filter::maskBits

The collision mask bits. This states the categories that this shape would accept for collision.

The documentation for this struct was generated from the following file:

- /build/box2d/src/box2d-2.4.1/include/box2d/b2_fixture.h