Greebler Tag : Nurnies tab
As well as Greebles, Greebler lets you use objects to populate a surface. These objects are called Nurnies. You can use any object but it is recommended to consider the memory usage and use Instances whenever possible. Texturing and Phong are taken from the source object. Neither is applied from the Greebler object onto the nurnie objects. Enable or disable the generation of Nurnies on the input object's polygon selection set. Settings Nurnies will be represented as Instance objects, which is much more memory efficient than simple copies of each Nurnie object. Note that Form to Polygon Shape is unavailable when nurnies are Instances because the instancing does not allow for that type of deformation. In Cinema 4D R11.5 and later there is the option to use so-called Render Instances, instances which are only fully realized during the render process. They are very memory efficient and it is recommended to enable this whenever possible. When disabled or unavailable, nurnies are simply placed onto the polygon as is. When enabled, the polygon is mapped into a unit-square and the nurnies placed onto that. When the unit-square is mapped back onto the polygon shape, the nurnies are misshaped so as to follow the polygon's form. This is only available when nurnies are Polygon objects and not being represented as Instances. This allows the nurnies to be placed less stringently with respect to the polygon's edges, thus creating a less obvious polygon-to-polygon greebling appearance. Sparsity is a percentage of how many polygons will be excluded from being populated with nurnies. At 0% sparsity, all polygons are employed. At 100% sparsity, no polygons are employed (same as not generating nurnies at all). Polygons are randomly selected for exclusion. The maximum number of nurnies that will populate any polygon. For each polygon, a random number of nurnies from 0 to this maximum is created. On more unidirectional surfaces such as a Landscape object, you may want the nurnies to point in the up direction despite the change in surface normals. Enabling this setting allows you to achieve just that. The Alignment vector is an HPB rotation vector that lets you change the global pointing direction of the nurnies. The first image below shows the nonaligned nurnie results (following the polygon normals). The second image shows the result of enabling Align Globally.
Two values set the minimum and maximum distance nurnies will be moved away from the polygon surface, given in real units of distance. The offset range can be positive or negative. Note that the greebles follow the path of the direction they face. If Align Globally is enabled then they will move in the same direction. If disabled, they will move along their polygon's normal direction. Two values set the minimum and maximum height to which nurnies will be scaled, given as a percentage. These two values let you specify a range for which the nurnie will occupy polygon space along one direction. For instance, 100-100% will cause the nurnie to be about as long as the polygon, limited with respect to its vicinity to the polygon edges. Similar to Length, these two values specify a range for occupying space in the other, perpendicular direction. Grouping Shapes can be grouped into any of three types: Bars (linear array), Array (MxN array), or Circular Array. Any of the Shapes available from the linked Library can be grouped. The descriptive images for each grouping type are also toggle buttons which, when clicked, change whether or not the type is used.
This allows you to control how many of the various nurnie and grouping types populate the object surface. At 100%, the particular nurnie has an equal chance as any other at 100%. At 50%, it has half the chance to be chosen as a nurnie for population. 0% is equivalent to disabling the nurnie. Basically, you can control whether or not there are more or less of a particular nurnie. If a nurnie is disabled then its Frequency value takes no part in the random decision process. Sets the scaling of the array, scaling the element objects respectively. All nurnies of this type will be rotated randomly on the surface plane. Note that this overrides Surface Rotation. All nurnies of this type will be rotated on the surface plane by the angle given. Same as for individual nurnies. This lets you dictate the orientation of the object on the surface that is different from its default. The options are:
When enabled, the array remains square (Bars and Array) or circular (Circular Array). When disabled, it's shape can be rectangular (Bars and Array) or elliptical (Circular Array) as determined randomly by Size. If Preserve Aspect is disabled, you can alter the aspect (change the width to length ratio) of the grouping between the minimum and maximum percentages given. Size aspects are determined randomly between Min and Max. A pull-down list which lists all of the available Nurnies, minus the grouping types, that can be used as the grouping element object. The minimum and maximum number of objects in the linear array (Bars). The minimum and maximum number of row and column objects in the Array. A relative scale value applied to each object in the Circular Array that allows you to vary the size of the objects with respect to the Circular Array size. The minimum and maximum number of objects on the circumference of the Circular Array. Objects You can use up to 1000 nurnies to extend your greebling possibilities. The objects used as Nurnies must exist in the document and the container Null object added to the Library Linkbox to be utilized with the Greebler object or tag. Opens the Greebler Library Management window so that you can add Nurnie objects from your Library into the document for use with Greebler objects and tags. See the Custom Objects section for detailed information and a tutorial on how to create and use Custom Objects as Nurnies with Greebler. Nurnies must exist in the document and be childed to a Null object so as to keep them grouped. When you drop the Null object into the Library Linkbox, all of the objects are dynamically added to the Objects list with toggleable images and Name for reference. Convenience button which enables all Nurnie and Grouping types. Convenience button which disables all Nurnie and Grouping types. The descriptive images for each nurnie are also toggle buttons which, when clicked, change whether or not the type is used. If you use objects that are not part of the Greebler Library, the image will be a generic one as shown below.
The name of the object representing the Nurnie. This name is also given to the C4D document file for the Nurnie stored on disk if added to the Greebler Library. This allows you to control how many of the available nurnie and grouping types populate the object surface. At 100%, the particular nurnie type has an equal chance as any other at 100%. At 50%, it has half the chance to be chosen as a nurnie type for population. 0% is equivalent to disabling the nurnie type. Basically, you can control whether or not there are more or less of a particular nurnie type. If a nurnie type is disabled then its Frequency value takes no part in the random decision process. Scales the object with respect to the scale calculated in order to fit within the polygon. Use this to make the object larger or smaller when the calculated size is undesirable. All greebles of this type will be rotated randomly on the surface plane. Note that this overrides Surface Rotation. All greebles of this type will be rotated on the surface plane by the angle given. This lets you dictate the orientation of the object on the surface that is different from its default. The options are:
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