Defined in include/extensions/PxBroadPhaseExt.h

class PxBroadPhaseExt

Public Static Functions

static PxU32 createRegionsFromWorldBounds(PxBounds3 *regions, const PxBounds3 &globalBounds, PxU32 nbSubdiv, PxU32 upAxis = 1)

Creates regions for PxSceneDesc, from a global box.

This helper simply subdivides the given global box into a 2D grid of smaller boxes. Each one of those smaller boxes is a region of interest for the broadphase. There are nbSubdiv*nbSubdiv regions in the 2D grid. The function does not subdivide along the given up axis.

This is the simplest setup one can use with PxBroadPhaseType::eMBP. A more sophisticated setup would try to cover the game world with a non-uniform set of regions (i.e. not just a grid).

  • regions[out] Regions computed from the input global box

  • globalBounds[in] World-space box covering the game world

  • nbSubdiv[in] Grid subdivision level. The function will create nbSubdiv*nbSubdiv regions.

  • upAxis[in] Up axis (0 for X, 1 for Y, 2 for Z).


number of regions written out to the ‘regions’ array