instantreality 1.0

Introduction

Followers divide in Dampers and Chasers. They are an easy to use alternative for common X3D interpolators. You only have to define a destination value and the duration of the interpolation in order to create a tween. Instant Reality provides the following dampers and chasers:

• ColorChaser
• ColorDamper
• CoordinateChaser
• CoordinateDamper
• OrientationChaser
• OrientationDamper
• PositionChaser2D
• PositionChaser3D
• PositionDamper2D
• PositionDamper3D
• ScalarChaser
• ScalarDamper
• TexCoordChaser
• TexCoordDamper

PositionChaser3D

This is an example about a PositionChaser3D that lets an object follow the mouse pointer. Other damper and chaser nodes follow the same logic.

Initially only the PositionChaser's duration - the time it takes to get to the destination value - has to be defined.

<PositionChaser3D DEF='pc' duration='5' />
        

The mouse pointer's position on a plane is recognized by a TouchSensor and routed to the PositionChaser3D's destination value. By routing the PositionChaser3D's value_changed field to a Transform's set_translation the objects seems to follow the mouse.

<PositionChaser DEF='pc' duration='5' />

<Transform DEF='trans_box'>
	<Shape>
		<Appearance>
			<Material diffuseColor='0 0.329 0.706' />
		</Appearance>
		<Sphere radius='0.25'/>
	</Shape>
</Transform>
		
<Transform DEF='trans_plane' translation='0 -0.25 0'>
	<TouchSensor DEF='ts' />
	<Shape>
		<Appearance>
			<Material diffuseColor='1 1 1' emissiveColor='1 1 1'/>
		</Appearance>
		<Box size='10 0.1 10'/>
	</Shape>
</Transform>
		
<ROUTE fromNode='ts' fromField='hitPoint_changed' toNode='pc' toField='set_destination'/>
<ROUTE fromNode='pc' fromField='value_changed' toNode='trans_box' toField='set_translation'/>
        

Image: PositionChaser3D

• PositionChaser3D.x3d