![]() Once you’ve applied the Boolean modifier, select your object and press Tab to enter Edit mode. Once the modifier is working how you want it, you can make it permanent by opening the dropdown in the Top Bar of the Boolean modifier and selecting Apply. Since the subject of this article is merging objects together, I’m going to go with Union! Difference Subtracts objects, using one object to cut a hole out of the other īy default, the Boolean modifier is set to Difference, so in the screenshot, the sphere is being Subtracted from the cube but to change the setting, simply go back to the Boolean modifier for the original object and select Intersect or Union instead.Union Adds objects, merging them into one.Intersect Multiplies objects together, only preserving the area where the two objects overlap.These are all essentially math operations that act on the 3D objects in your scene: Now we can see that the sphere seems to be cutting into the cube! So, what’s going on here? Well, what you’re seeing is the Difference boolean operation – and it’s one of the three different options for booleans: Intersect, Union, and Difference. At first, it’s difficult to see any difference, because the original boolean object is in the way so to make it easier to see what’s going on, I’m going to select my secondary object in the viewport, go to Properties Panel > Object Properties tab > Viewport Display, and under Display As, choose Wire. Once you’ve selected your secondary object in the boolean modifier, the boolean operation should become active right away. To do this, click the Eyedropper icon in the field labeled Object, and select your secondary object in the 3D viewport. ![]() Once the Boolean modifier is added to your primary object, you’ll need to tell the Boolean modifier what other object to use for the operation. For my example, I’ll be using a Cube and a UV Sphere!įor clarity, I’ll refer to the cube as my Primary object, and the sphere as my Secondary object.įirst, Select your primary object and go to the Properties Panel under the Modifier Properties tab, click the Add Modifier to open it.įrom the dropdown, choose Boolean to add a Boolean modifier to your object! The shapes and positions of the objects depend on your project, but they need to be overlapping for Boolean operations to be of use. In 3D art, Boolean Operations allow you to merge objects in a much more powerful way than the using Join function and they’re not just limited to merging objects together, either! But before we get into the many ways booleans can be helpful in modeling, we need to start by setting up a Boolean Modifier.įor any Boolean operation, you’ll need to start with two objects that overlap each other. This is because in Blender, all you’re doing when you Join objects is telling the software to consider their faces and vertices as part of the same object – so it doesn’t affect the actual model at all.īut what if you DO want to join objects in a more physical, permanent sense? Well, that’s where Boolean Operations come in! How to Merge Objects using Booleans In fact, even if you join two objects that are overlapping, you can go into Edit Mode and move them apart – even though they’re “Joined”, the original faces, vertices, and edges are unaffected. Now, something that may be confusing to new users is that even though the objects are Joined together, none of their vertices or faces change at all. Once you do this, the two objects will now be considered one in Blender – even if they’re not physically connected to each other in the 3D viewport, Blender now recognises them as a single object! To use this, select two objects and press Ctrl/Cmd – J (or Right Click them and select Join). In Blender, the simplest way to merge multiple objects or curves together into one is the Join function. Blender has both a Join function, as well as the option to merge objects using a Boolean operation – and while they might seem similar at first, they both do very different things! How to Join Objects But in Blender, there are a couple of ways to go about this, and they both work a bit differently. Very often while 3D modeling, you have two or more objects that you need to make one somehow, you have to merge them together.
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