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# 3ds Max Modeling Techniques - Boolean Operations

By
-
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Industry
• Design Visualization
Subject
• Modeling
• 2011
• Basics
Products
• 3ds Max
Skill Level
• Beginner
Duration
4 min

# 3ds Max Modeling Techniques - Boolean Operations

#### In this tutorial, learn how to use Boolean Operations to build 3d mathematical derivatives of 3d objects. You will experiment by learning how to add, subtract and intersect objects to create new objects.

Notes

• Recorded in: 3ds Max 2010
• This tutorial is intended for use with 3ds Max version 2010 or higher.

Transcript

`00:00:00 --> 00:00:04You use Boolean operations to create mathematical derivatives of 3D objects.00:00:04 --> 00:00:09The resulting object is created by adding, subtracting or intersecting multiple objects.00:00:10 --> 00:00:13Typically, you don't use Boolean operations to model organic objects,00:00:13 --> 00:00:18by their very nature, Booleans are more useful for mechanical or architectural designs.00:00:18 --> 00:00:23In this example, you'll use boolean operations to assemble 3D geometry into a fireplace mantle.00:00:24 --> 00:00:29The existing geometry was created mostly with boxes with slight edits to round off some corners and edges.00:00:31 --> 00:00:36The molding on top was created using the Sweep modifier and then converted to an Editable Poly.00:00:36 --> 00:00:40To use Boolean operations, you need two or more intersecting objects in the scene.00:00:41 --> 00:00:47Select a base blue box and go to the Create Compound Objects panel. This is where you will find the ProBoolean tool.00:00:48 --> 00:00:52The Boolean tool also seen here uses older technology.00:00:52 --> 00:00:54It is recommended to use ProBoolean instead.00:00:54 --> 00:00:59When you use this tool, the selected object is converted into a proboolean object,00:00:59 --> 00:01:01and you can now use boolean operation on it.00:01:02 --> 00:01:06Start off by using the Attach operation to attach all the blue parts together.00:01:06 --> 00:01:12Use the Start Picking button, and then use the Select by Name dialog to select all boxes and the LineSweep object.00:01:12 --> 00:01:16This attaches all the objects but does not perform any geometric edits yet,00:01:16 --> 00:01:20however, you now have one resulting object instead of the original eight.00:01:20 --> 00:01:25Using the Layer toolbar, unhide the "detail" layer. Additional objects appear in green.00:01:27 --> 00:01:32The rectilinear objects on either side of the mantle are made of capsule primitives.00:01:32 --> 00:01:37Still in in Start Picking mode, set the Boolean operation to Subtraction,and go to the Select by Name dialog again.00:01:38 --> 00:01:44Select all twelve capsule objects and click the Pick button. Notice the embossed figures on the mantle in the viewport.00:01:44 --> 00:01:48Proboolean can handle more complex geometry than simple primitives.00:01:48 --> 00:01:53In Subtraction mode and with Start Picking still enabled, click the text in the viewport.00:01:53 --> 00:01:56The operation takes a while longer but the operation is still successful.00:01:57 --> 00:02:03At any time, you can switch operation modes. Using Union, pick the two remaining details using the Select by Name dialog.00:02:04 --> 00:02:07This time, instead of being subtracted, the two objects are added to the geometry.00:02:08 --> 00:02:11It is important to remember that boolean operations are calculated linearly. 00:02:12 --> 00:02:16This means that adding an operation on top of another may affect the result unexpectedly.00:02:17 --> 00:02:23Unhide the "extra-detail" layer. Use Subtraction mode to create two negative volumes in the mantel.00:02:28 --> 00:02:33This removes geometry from the original blue model, but also the details you added a moment ago.00:02:34 --> 00:02:39Sure enough, notice in the Sub-object Operations the order in which they are calculated.00:02:41 --> 00:02:46You can rearrange that order by selecting an operation and giving it new spot.00:02:46 --> 00:02:56For example, to evaluate the Sub1 subtraction before the detail1 union, you give the subtraction the ID number 21 and click the Reorder Ops button.00:02:58 --> 00:03:05This operation is now evaluated earlier while others have been pushed down. Notice the detail is now visible in the viewport.00:03:06 --> 00:03:11Similarly, you can reorder Sub2 to take place earlier, with an ID of 22.00:03:12 --> 00:03:20You now have a resulting boolean object made of 24 elements or operands. You can still have access to individual operands if you need to.00:03:20 --> 00:03:27For example, the two details you have been manipulating are extruding a tad too much. You need to push them in a little bit.00:03:28 --> 00:03:35This can be done in the Modify panel. Expand the Proboolean label and click Operands to access this sub-object mode.00:03:36 --> 00:03:42In the Sub-object Operations list, use CTRL to select the last two entries (detail1 & detail2).00:03:43 --> 00:03:52Using the Move tool in Offset mode, move the operands 0.5" in the Y-direction. Exit Operands mode when done.00:03:58 --> 00:04:05To view the mantle textured, go to the Material Editor and drag the Wood_Oak material onto the mantle in the viewport.`
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Tags
• 3ds Max
• Modeling
• 2011
• Basics

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