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Google SketchUp 6 Essential Training

Using Photo Match to align cameras


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Google SketchUp 6 Essential Training

with George Maestri

Video: Using Photo Match to align cameras

Now let's take a look at the Camera Match tool. And what this does is it allows you to take an existing photograph and then match it within SketchUp and then draw to the matched photographs. So you can basically recreate an existing building from a photograph. Now it is a little bit of a complex process, so let me take this in stages. The first thing we are going to do is just match the photo and then after that we will go ahead and model the building. So let me show you the photo of the building. I am in Photoshop here and it is just a photo of an old Bank building in the middle of Montana in Pony, Montana.
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  1. 5m 44s
    1. Welcome
      1m 41s
    2. Installing SketchUp
      1m 31s
    3. Tips for Mac users
      2m 32s
  2. 51m 22s
    1. Interface basics
      5m 54s
    2. Navigating in SketchUp
      3m 28s
    3. Walking around in SketchUp
      4m 21s
    4. Creating camera views
      4m 36s
    5. Shading faces and edges
      6m 44s
    6. Creating shadows and fog
      4m 35s
    7. Creating scenes
      2m 24s
    8. Selecting and moving objects
      6m 45s
    9. Scaling and rotating objects
      4m 14s
    10. Manipulating faces and edges
      3m 55s
    11. Advanced selection tools
      4m 26s
  3. 54m 6s
    1. Line tool fundamentals
      5m 25s
    2. Using the Line tool for 3D drawing
      4m 50s
    3. Using the Rectangle tool
      4m 55s
    4. Creating circles and polygons
      3m 33s
    5. Creating arcs
      3m 46s
    6. Pushing and pulling faces into 3D
      8m 11s
    7. Using the Offset tool to create outlines
      6m 14s
    8. Using the Follow Me tool
      3m 49s
    9. Creating text
      2m 44s
    10. Softening round edges
      4m 19s
    11. Using construction tools to create guides
      4m 49s
    12. Creating sections
      1m 31s
  4. 38m 55s
    1. Grouping objects
      4m 54s
    2. Creating components
      6m 37s
    3. The Component window
      5m 51s
    4. Working with layers
      4m 26s
    5. Creating layers
      4m 31s
    6. Using the Outliner
      6m 29s
    7. Hiding and unhiding objects
      4m 23s
    8. Locking and unlocking objects
      1m 44s
  5. 26m 5s
    1. Using the Materials palette on a Mac
      1m 50s
    2. Applying materials
      4m 25s
    3. Editing materials
      4m 22s
    4. Creating materials
      2m 21s
    5. Mapping images
      3m 39s
    6. Applying bitmap images
      2m 21s
    7. Mapping curved objects
      4m 13s
    8. Projecting maps on curved objects
      2m 54s
  6. 26m 26s
    1. Applying styles
      3m 7s
    2. Creating styles
      6m 57s
    3. Outputting 2D bitmaps
      3m 51s
    4. Basic animation
      4m 33s
    5. Advanced animation
      7m 58s
  7. 17m 26s
    1. Contours
      6m 15s
    2. Creating terrain from scratch
      2m 56s
    3. Sculpting with the Smoove tool
      2m 21s
    4. Stamping and draping objects on terrain
      5m 54s
  8. 17m 53s
    1. Using Photo Match to align cameras
      6m 56s
    2. Modeling in Photo Match
      5m 54s
    3. Exporting models to Google Earth
      5m 3s
  9. 15s
    1. Goodbye
      15s

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Google SketchUp 6 Essential Training
3h 58m Beginner Nov 21, 2008

Viewers: in countries Watching now:

Architecture, design, and media professionals all over the world are using Google SketchUp to create detailed 3D models efficiently and quickly. In Google SketchUp 6 Essential Training, design expert George Maestri teaches the foundations of SketchUp's drawing, design, and rendering tools. He covers the fundamentals of the application, the interface, and the Sandbox extension, which is used to create realistic organic shapes and terrain. George also discusses how to model and texture objects from existing photographs and export models to Google Earth to visualize how buildings fit in a real landscape. Exercise files accompany the course.

Topics include:
  • Using SketchUp's unique 3D drawing and modeling tools to create realistic objects and scenes
  • Creating textures and materials to add additional realism and depth to scenes
  • Creating libraries of components to make changes on multiple models within a scene
  • Creating walk-through animations for presentation and final output
  • Outputting 2D bitmaps to create realistic or stylized renderings for clients
Subjects:
3D + Animation Architecture Previsualization 3D Drawing
Software:
SketchUp
Author:
George Maestri

Using Photo Match to align cameras

Now let's take a look at the Camera Match tool. And what this does is it allows you to take an existing photograph and then match it within SketchUp and then draw to the matched photographs. So you can basically recreate an existing building from a photograph. Now it is a little bit of a complex process, so let me take this in stages. The first thing we are going to do is just match the photo and then after that we will go ahead and model the building. So let me show you the photo of the building. I am in Photoshop here and it is just a photo of an old Bank building in the middle of Montana in Pony, Montana.

And this is actually a really good way to take the picture. Now for SketchUp's Photomatch, you do need to take a picture of the corner of the building. You need to get at least two sides of the building; you can't take a straight on or a side view of the building. You want to get some perspective in the shot and so this is a really good shot for that. So let's go ahead and show you how to match this photo. We have a window here called Match Photo and let's go ahead and open that. And in here, we basically have one button that is active at this point and that is a New Matched Photo.

So let's go ahead and hit that. And then let's go up to our Desktop and let's go to our Exercise Files and we are in CH07. And there is a file out there called OldBankBuilding. Open that up and all of a sudden, all of this stuff comes up. I am going to go ahead and minimize this for right now. Let me go ahead and open this. Now we have got a couple of options here. One is the Photo; obviously we need to use that. And then the other one towards the bottom here is the Grid. The type of grid that we want to use depends upon where the photograph was taken. If it is an inside photo, let's say you are taking a photo of the inside of a house or something, you would use this. If it is a kind of a photo that's taken from the top and down, let's say you are taking a picture of an object and you want to model that, then you would use this. And this one here, which is the default, is called Outside and it's the one that's mostly for architecture, which is what we are doing. So we have Inside, Above and Outside and we are going to be using the Outside one.

So I am going to go ahead and minimize this so we have more space. When we create the Match Photo, all of these red lines, and yellow lines, and green lines up come and they can be quite scary. But they are really not. All they are is the vanishing points of the scene. You can almost see how this works with the building. So this is the top corner of the building. In fact, let's just start working with these. What you do is you just left click and drag these and you can zoom. I use my middle mouse button here and you just position these so that you get the parallel lines of the building to match up. Now I can middle click and drag to Pan. And then what I am doing is I am trying to get this top flashing here. And I can just zoom in and I am just really trying to get the parallel lines that represent this green axis and basically what I am doing is lining my green axis.

Now I can do the same here and I want to do this a lot lower. Now I don't have to do it exactly. So, for example, I can line up the bottoms of these windows. Let me go ahead and take the rest of this green axis here. So the bottom of these windows lineup, so all I have to do is make sure that I have got these windows lined up here. And then I can do the red axis. Now the one thing about this building is notice how it kind of juts out here. These don't have to be on the same plane but they have to be parallel. So I can, for example, get the underside of this roof detail here that would be a really good parallel line for this top one here.

And for another one, I can probably just do the underside of this window here where this doorway, or whatever this is. Okay, and just kind of zoom in here. And I am really just trying to match this up as precisely as possibly; so I am trying to get this line to match up exactly with this. So now that I have that, I have the perspective of this building. But the one thing we also need to do is we need to align the building to our axis. Now here if I click on this yellow box here, you will see this moves the axis around. Now this is the axis that I will actually be modeling on. This is my red, green and blue axis.

So probably, the best thing to do is to line this up so that that blue axis is vertical to the corner of the building. And I have got this green and red axis kind of parallel to the building as well. Now the one thing about this building is it is on a slide hill. So this bottom far corner here is actually lower than this corner. So we have to be aware of that. This red one is going to align to the sidewalk and aligned to the building because the side walks is actually at an angle low.

So now that we have done that, we have one more thing to do. And we have our guy in the scene here, this guy named Brice. And he is a little big compared to the building. Now if you think of the doorway as something like compared to human, we can shrink this down. In fact, I am going to double click on this Match Photo and open it up here. And what we have is we have a spacing grid here, we have a 5' Spacing. So each one of these dotted lines is 5' apart. So that means he is about 6' tall. Now if I move my cursor over this blue line and left click, I can size my scale of my scene. So I am going to make it so that that doorway is about 8' tall, maybe a little bit more so that is properly sized. Now if I had an exact size for the building, I could also just make sure that it is exactly the right size.

Now once I have done that, now I can start actually modeling on the building. So all I have to do here is click Done and I am ready to go. So now I am ready to sketch over. Now I am going to stop right here and we are going to pick up right from where we left off in the next lesson.

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