Because the object is placed on a stand and pictures taken showing the calibration target(s), the underneath of the object is not visible in any of the images. When you build the textured model, the underneath of the model is textured with a plain colour guessed from the surrounding geometry.
In many cases the plain texture (as seen in Figure 4.4.4) is adequate since you may not be interested in the bottom of the object or it may be plain anyway. If you do want to add texture, the simplest approach with 3DSOM Pro is to turn the object over and take one or two images of the base of the object and add these to the project manually.
3DSOM Pro will not be able to locate the camera position for these underneath shots. The Align Wizard is used to manually align each of these additional images relative to the others in the project so that they can be used when generating the texture map.
Create a new project and load in all the photographs. The underneath images without the calibration target(s) will be marked as "rejected". Alternatively, you can load all the images except the underneath ones, and then add them to the project at the end of this step.
Choose button to move onto the next page.
Position and orient the model so that it matches the image displayed behind it using the View Model toolbar if you want to move back to where you were previously. button, button, button and button buttons as normal. Use the button (and the button) on the
To position the model more accurately, you may want to see the image in more detail - use the button and button tools to enlarge and move around the background image while you position the model.
When you are happy with the alignment of the first image, use the button to move onto the next one. You can always return to the other images later if you wish, but note that pressing button will keep all the changes you have made to the alignment of all images other than the one currently displayed.
When you have aligned all the images you want to, click the button at the bottom if the window to proceed to the final page.
If you have already created an edited texture map you can merge in just the underneath images by selecting each in turn from the Thumbnail Window and then using the menu item (alternatively, hold Ctrl and drag the thumbnail onto the View Model Window).
|< Previous topic|
(Improving the geometry with subdivision surfaces)
|Next topic >
(Spot fixing the textures)