Wrap Capture SOP

Overview

This sop is the second of 3 sops that use one surface to deform another based on the weighted proximity of the points in the driver surface to the deformed one. This sop performs the capture phase on the surface you wish to deform. The attributes it creates are understood by the Wrap deform sop and effectively "bind" the captured surface to the driver surface.

Usage

Input 1 is the geometry to capture and input 2 must be a Wrap prep sop (which is itself wired to some polygon geometry). The various parameters adjust how the input geometry is bound to the driver surface.

Parameters

Radius of capture	Distance from each point in the surface to capture to look for preped points from the driver surface. This radius can be overriden by adding a radius float attribute to the capture surface.
Limit # of inf. points	Within the radius specified above many points may be found, this toggle allows you to specify a limit to the number of influence points returned.
Maximum # of inf. points	The maximum number of influence points returned within the radius specified.
Fade effect	Normally the weight of each point found within the radius is scaled by a distance falloff. This menu allows for other additional methods to limit the effect of the influence points found in the radius.
Fade out value	If fade out method is used to scale the weight then this value measured in radians is the angle at which the effect is scaled to 0. Usual values lie between -0.5 to -2
Kernel	The distance falloff kernel used to weight the effect of the influence points.
Visualise weights	Show the distribution of capture weights, this highlights areas that are more or less well captured. Blue areas less captured and red areas more captured.
Capture surface colours	If the driver surface has primitive colours on it then this will show the colours transferred onto the captured surface so you can see which primitives are influencing which areas. If have this work the prep sop must have 'keep prim cols' toggle turned on.