Procedural CSG Operations

Procedurals have options to perform Boolean operations between the different generators.

procedural-csg-render

Attribute	Description
CSG Mode	These options change how a this node combines with the rest of the procedural system. Replace, Replaces the previous procedural system. Union, Adds the new procedural to the old procedural system. Intersection, Interesects the new procedural with the old procedural. Subtract, Subtracts the new procedural from the previous procedural system. Blend, Blends between both procedurals - driven by the CSG Blend Weight. Union Blend, A combination of Union and Blend - driven by the CSG Blend Weight. Smooth Union, The new procedural is added to the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight. Smooth Subtract, The new procedural is subtracted from the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight. Offset, Adds one procedural ontop of the other another. Custom Code, allows you to enter your own expression code.
CSG Blend Weight	How much the new procedural blends with the old procedurals, depending on the CSG Blend Mode.

Attribute

Description

CSG Mode

These options change how a this node combines with the rest of the procedural system.

Replace, Replaces the previous procedural system.
Union, Adds the new procedural to the old procedural system.
Intersection, Interesects the new procedural with the old procedural.
Subtract, Subtracts the new procedural from the previous procedural system.
Blend, Blends between both procedurals - driven by the CSG Blend Weight.
Union Blend, A combination of Union and Blend - driven by the CSG Blend Weight.
Smooth Union, The new procedural is added to the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight.
Smooth Subtract, The new procedural is subtracted from the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight.
Offset, Adds one procedural ontop of the other another.
Custom Code, allows you to enter your own expression code.

CSG Blend Weight

How much the new procedural blends with the old procedurals, depending on the CSG Blend Mode.

<img src="https://manual.notch.one/0.9.23/en/docs/techniques/procedural-csg-operations/img/procedural-csg_v3.jpg"width="1000" height="467"

/><figcaption>
        <h4>CSG Operations</h4>
    </figcaption>

<img src="https://manual.notch.one/0.9.23/en/docs/techniques/procedural-csg-operations/img/procedural-csg-graph_v1.jpg"width="1000" height="484"

/><figcaption>
        <h4>CSG Operation Nodegraph</h4>
    </figcaption>

CSG operations works the same way for the Volume Generator. procedural-csg-volume

Order of Operations #

The order of operations for processing CSG operation is decided based on the Y position of the node in the nodegraph, or the X position if the Y values are the same.

procedural-csg-order

$procedural-csg-ab-fract$

procedural-csg-ab-null

Affect Color #

This option only takes affect if the renderer node being used for this procedural supports it. For example, the Generate Colours checkbox in the Procedural Meshing node must be enabled.

CSG Blend Weight is used for colour blending procedural-colour