3D Viewer Controls
You can control the perspective of the camera by means of these control items. The Pan button is pressed down by default.
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Home (F) – Click this button to set the camera to the initial view of the scene. You may press hotkey F to fast return to the home view.
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Zoom – It toggles the camera to Zoom mode by pressing down this button. Move your cursor up in the 3D viewer to zoom in and move the cursor down to zoom out the scene.
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Pan – It toggles the camera to Pan mode. Drag the 3D view left / right to move the scene horizontally while drag the 3D view up / down to move the scene vertically.
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Rotate – It toggles the camera to Rotate mode. It turns the whole scene counter clockwise as you move up the cursor and clockwise as you move the cursor down.
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Roll – It toggles the camera to Roll mode. Drag the cursor up / down to roll the scene vertically and drag it left / right to roll the scene horizontally.
Tip:
You may press down the Shift key to accelerate the speed of Pan and Zoom by ten times.
Operate 3D Viewer with mouse
You can also change the camera view to observe the scene in different perspectives with mouse.
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Zoom In / Out: Press down both left and right mouse buttons, move the cursor up / down to Zoom In / Out.
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Horizontal Roll: Press down the left or right mouse button, move the cursor left / right to roll the scene horizontally.
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Vertical Roll: Press down the left or right mouse button, move the cursor up / down to roll the scene vertically.