The Match Photo dialog box controls are used to help you create accurate 3D models from photos and to accurately place models in a photo's context. This dialog box is only relevant during matching. Activate the Match Photo dialog box from the Window menu. The following image contains a screen shot of the Match Photo dialog box on Microsoft Windows:
New Matched Photo button
Click on the New Matched Photo button to start a new matching.
Edit Matched Photo button
Click on the Edit Matched Photo button to reenter the matching mode. This button is only active in a Sketch-Over-Image mode.
Check the Model checkbox to display the model. Uncheck the Model checkbox to hide the model. This option is also available in sketch-over-image mode.
Project textures from photo button
Click on the Project textures from photo button to automatically project the photo as a texture onto your model.
Grid On/Auto radio buttons
Check the On radio button to continuously display the axes grid. Check the Auto radio button to only show the grid when manipulating one of the matching controls.
Click on the Style buttons to change the style of the grid. Grid styles are used to set the grid to best complement a specific type of photo. The left-most style is used for photos usually taken indoors where walls, ceiling, and floor of a room meet at a corner (the origin is usually at the bottom corner where the walls, ceiling, and floor meet). The middle style is used for photos taken from a vantage point where you are looking down on the building or structure (the origin would be at the top corner of the building where roof and walls meet). Finally, the right-most style is used for photos taken from a vantage point where you are standing on the ground (the origin would be the bottom corner where the walls and ground meet).
Click on the Planes buttons to toggle the display of grid lines on a particular plane. The Red/Green button toggles grid lines in the red and green planes. The Red and Blue button toggles grid lines in the red and blue planes. Finally, the Green/Blue button toggles grid lines in the green and blue planes.
The spacing field is used to set the scale of your model before you start sketching over the image. Enter a value in the spacing text-entry box to change the size of grid spacing to represent some multiple of the overall structure size. Then, drag the axes lines to line grid squares up with your image.