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We are now on page 32 of your working file, Combine and Break Apart. This is one of those lessons that, well, you may need to come back to it over time; a lot of people get confused about the subject of Combine. Now, combining an object is just nothing like grouping an object and that's the thing that needs to be set upfront. We have two objects here; the orangey color ellipse or circle and the white circle in front. These two, as you can see up here, are grouped together.
I can ungroup them and I have two objects. However if I take these two objects and I combine them, once you have two objects selected, as with Group, you can right click and choose Combine or Ctrl+L or straight up here on the Property bar, you can combine. See there? I have got the option to group, but also to combine. Now, when I combine, what happens is they joined together, become one object and I can actually see through.
See the difference? Really big difference between Combine and Group, isn't there? Ctrl+Z, I'll undo that. Let me delete this one here. The important thing to understand about combining objects together, and Plus (+) on my keyboard, I'll just create a duplicate and pop it there, Shift+Page Up. The important thing is that in the same way as we learnt with aligning objects, you know at the object on the lowest layer, becomes the reference, well, it's the same thing with combining.
Either the object on the lowest layer or the lowest of stacking order, or the last object you select, becomes the reference. For example if I select the orange first, finger on Shift and then the white circle and I combine, what will happen? You will notice I end up with a white filled circle or ellipse or hollow if you want to call that and it has a red outline. So basically the resulting combined object, I'll say that again, the resulting combined object adopted the properties of the object on the lowest layer, for example like that one there, or the last selected object.
In this case, the last selected object was the white circle with the red outline. So my end result is white with a red outline and the outline thickness is also the same. That's quite powerful, isn't it? Let's take that a little further, so you can see it over here. If I select all of these objects, that orange one is on the bottom layer, let's combine together. Well, they have all turned orange, they all have a thin black outline and where that crossed over, the crossover point is see-through; can you see that? It's actually see-through.
So whatever objects crossover and you combine them, you will be able to see through them. So let's quickly undo that. What I am going to do now is take this object here. Now objects don't have to touch to be combined. And I am going to select all of those objects, in fact let's not do it that way, finger on Shift, and I'll select this as the last object. So when I combine, I expect they will all turn purple with a thicker blue outline, so I combine and there you go.
Crossover point is see-through. It's really quite simple once you start to understand these principles. Let me delete that and I am going to increase the size of this. Now this is the bowling ball we used on the previous page, but there is a certain part of that I didn't actually show you. To create the correct effect in this highlighted area, we actually needed to combine the objects. Let me ungroup that. Now, what I have got here is not a group of objects as we did previously, but rather a combined number of objects.
And that's how I am getting that unique effect. Notice I have the white glow as a bit bright of the area, so it pales out on the others, that's because an effect has been applied to the combined object. If I break them apart, now yes, whenever you combine a number of objects together and you break them apart, watch this one here. If I select that and I come up here to Break apart, Ctrl+K or right click and choose Break apart, which will be up there, I ended up with two resulting objects that are the same size originally.
But they will have the properties of whatever the combined object had, which of course was white with a red outline. Let me undo that. Watch this, if I break apart this combined lot of objects, you will notice that that effect now is applied individually to each object and of course that doesn't look right at all. It was the combining of those objects making them one object, so I could apply the effect across the one object that made it work so well.
So let's go back and recombine them and that does look so much better, doesn't it? Now, don't worry if you don't completely understand that, you can always come back and refer back to this in time. I'll put that back there like that. Now, the last thing I quickly want to show you is, if I select these two objects here and just bring them over here, just to take the principle further, again if we combine these two together, Combine, they will end up turning the orange color, Ctrl+Z because that was on the lowest layer.
Alternately, if I select that object and then the number and then the red circle and combine, as you can see we ended up with the resulting being great with the black outline, but also where the characters are, let's go Shift+Page Up, bring to the top, where the characters are, you can see they are actually see-through. Can you see that? In fact let's look at that a little deeper. When I break this apart, always remember that everything will break apart in the resulting color, okay, that it was as a combined object.
Well, let me just delete that, pop that on there, always remember when you are looking for that see-through effect, Shift+Page Up, so we can see that, we'll just increase the size, finger on Shift, stretch it a little bit, just to really highlight this to you. When you are after that effect of see- through, okay, place one object on top of the other and combine the two and you will always end up with a see-through object as you can see. Okay, so the Combine makes one object of many objects.
Now in time, you will also see tremendous other values in doing this type of thing, particularly when it comes to node editing, okay. We'll talk more about that as we go. So, hey, I'd like for you to go ahead, play with all of the objects and really just reproduce what I've done and that will help you to at least sink a little bit of this process in, but as we get into future design elements, it will become very, very obvious why we're combining objects.
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