The Get Region of Definition Action

	#include "ofxImageEffect.h"
	#define kOfxImageEffectActionGetRegionOfDefinition        "OfxImageEffectActionGetRegionOfDefinition"
Arguments

Description

The region of definition for an image effect is the rectangular section of the 2D image plane that it is capable of filling, given the state of its input clips and parameters. This action is used to calculate the RoD for a plugin instance at a given frame. For more details on regions of definition see Image Effect Architectures.

Note that hosts that have constant sized imagery need not call this action, only hosts that allow image sizes to vary need call this.

Return Values

Default Action

If the effect did not trap this, it means the host should use the default RoD instead, which depends on the context. This is...