# GeoInst_UpdateInstance

GeoInst_UpdateInstance pGeoInst, InstIndex

## Description

Updates an instance's internal world matrix using it's current position, rotation and scale values. This command should be called once after the instance's transforms have been updated. This command does not need to be called if only custom element data was modified.

## Parameters

pGeoInst | INTEGER | Pointer to the GeoInst which contains the instance
InstIndex | INTEGER | 1-Based Instance Index

GeoInst Commands
jGfx Command Index
jGfx Main