Table of Contents

This page provides information about Clipper objects in Chaos Vantage.


Overview


A Clipper object is a geometric primitive that can be used to clip away parts of the scene with a simple plane.

The Clipper parameters are grouped into General and Include/Exclude Settings (see the following table).


ButtonDescription

General settings – Contains settings for affecting lighting and rays, managing colors of clipped sections, and managing clipper modes.  

Include/Exclude settings – Contains settings for including/excluding objects from the clipper.





UI Path


||Top toolbar|| > Create new Clipper object


||Right side panel|| > Objects tab > Create new Clipper object



Workflow


To create a Clipper object, use the Create new Clipper object button either from the toolbar or from the Objects tab.

The Clipper object is now available in the viewport and its parameters are accessible from the Objects tab.

You have to adjust the Clipper's position and direction via the Move and Rotate tools.

Select objects to included or excluded from the effect of the clipper. This can be done in the Include/Exclude tab of the Clipper's parameters.

Adjust the rest of the Clipper's parameters to your liking. See the following sections for more information on the effect of each parameter.



General settings


EnabledEnables the use of a clipper. See the Clipper Effect example below.

Affect lighting – When enabled, the clipper affects area lighting.

Clip light's geometry – Enables or disables the clipping of lights geometry (for example a mesh light).

Camera rays only – When enabled, the clipper affects objects as they are directly seen by the camera, but they appear unchanged to reflection/refraction/GI rays.

Use object material – When enabled, the clipper uses the material of each clipped object to fill in the resulting holes. When disabled, the material applied to the clipper object itself is used. See the Use Object Material example below.

Set material ID – When enabled, you can specify a face material ID for the clipper object. This ID can then be used inside a Multi/Sub-object material to specify a different filler material for different objects. This option is available only when Use object material is enabled.

Mesh mode – Enables the clipper to clip against an arbitrary mesh object rather than an infinite plane. See the Mesh Mode example below.

Subtract – When enabled, clips away anything inside the specified mesh; only renders objects and parts of objects outside of the specified mesh. When disabled, clips away anything that is outside the specified mesh; only renders objects and parts of objects inside the specified mesh.

Pick scene object(s) – Picks an object for the mesh clipper list. 

Delete – Deletes a selected object from the mesh clipper list.

Mesh list – A list specifying the mesh used for clipping.



Include/Exclude settings


Include – Specifies a list of objects that are affected by the clipper. See the Clipper Include/Exclude example below.

Exclude – Specifies a list of objects that are not affected by the clipper. See the Clipper Include/Exclude example below.

Pick scene object(s) – Picks an object or multiple objects for the Include/Exclude list. 

Delete – Deletes a selected object or objects from the Include/Exclude list.



Examples


The following examples demonstrate the effect of Clipper and its parameters. You can click on the images to view them with higher resolution.


Clipper Effect

This example shows the effect of adding a Clipper. Here, the clipper affects only the pumpkin.


Use Object Material

This example shows the effect achieved when a Clipper uses the object's material to fill in the resulting holes.

off
on


off
on





Mesh Mode

This example demonstrates the effect of the Mesh mode. Here, a geometry in the form of Chaos Vantage's logo is cutting through the pumpkin. The geometry acts as a clipper.



Off
On





Clipper Include/Exclude

This examples shows the usage of Include/Exclude lists. The objects that are added to the Include list are affected by the Clipper, the rest of the objects are not clipped. If the objects are added to the Exclude list instead, then they are unaffected and everything else is clipped by the Clipper.


Pumpkin and Rock are added to the Include list.

Pumpkin is added to the Include list.

Rock is added to the Include list.

Rock and Pumpkin are added to the Exclude list.




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