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Start drawing, designing, and rendering your ideas with SketchUp, the inexpensive 3D modeling toolkit used for everything from architecture to game design. George Maestri covers the fundamentals of the application, the interface, and how to model objects from scratch. Plus, learn how to texture objects and create simple animations.
All of the lessons work with both SketchUp Make, the free version of the program, and SketchUp Pro.
If you want to apply textures to a surface more accurately, you may need to use projected textures. Let me show you how this works. Now I've got this simple object, but I've got this kind of concave surface and I want to put a texture on it. Now if I were to do File> Import here. And, say, select that soup label, open it up, and apply it. You'll see that while I get the same sort of situation that I had with the soup can. And if I apply that material, well, it applies but I can't control the position of the material.
I can control the scale, but not the position. So I can actually get the position a little bit more accurately using what's called a projection. So I'm actually going to back my way out of this. I'm going to undo that and we're going to create what's called a projector. Which is basically a slide projector screen from which we're going to project that texture. So I need to create a rectangle as wide as this opening. So I'm going to select my Rectangle tool, draw across that opening, and you can see how it closes off, but we'll fix that. Go ahead and hit the push/pull tool, pull that out a bit, and then I'm going to erase these edges here.
So now I've got this rectangle, which is exactly as wide as this opening. So I'm going to go ahead and bring in that material again, but this time I'm going to apply it to this face. So I'm going to go File> Import, select that label, Open. And now, as before, I could apply it here. But actually I'm going to apply it to this particular rectangle. And I'm going to scale it up so it's exactly the right height. Now if I were to take this material and apply it here, I would pretty much get the same results.
I would get, the mapping would be pretty close in terms of scale, but not in terms of position. So what I can do is I can select this object here, right-click over it, go Texture> Projected. Now what this is going to do is it's going to project the texture on to anything else. So once I do that I can eye dropper this texture and then click on here and now it places it. Now, for Mac users don't use the magnifying glass here instead select the paint bucket tool and hold down the command key to show the eye dropper.
Then click on the texture. Once you've done that click on the curved surface and the texture should project properly. Now once it's placed, it's actually stuck to the materials. If I move this, it's not going to reproject it. So for example, if I were to select this face and move it, it doesn't re-project it until I reapply the material. So if I were to eyedropper this and apply the material again, I would get that new projection mapping. So you can use this as a great way to accurately position textures on irregular surfaces.
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