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mapping:cawe:editingtools:camera [2010-10-30 23:11] Carsten Revised the text (needs more work / not yet finished...) |
mapping:cawe:editingtools:camera [2013-01-07 12:07] (current) |
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| In section [[mapping:cawe:views]] we have explained how 2D and 3D views work and how you use them to explore and navigate the map. | In section [[mapping:cawe:views]] we have explained how 2D and 3D views work and how you use them to explore and navigate the map. | ||
| We have also mentioned (albeit briefly) that each 3D view has a "camera" assigned: | We have also mentioned (albeit briefly) that each 3D view has a "camera" assigned: | ||
| - | A camera specifies a viewing //origin// (sometimes also called "eye position") and an //orientation//. When you use the mouse or keyboard to look, move, pan, zoom or orbit in a 3D view, you actually manipulate the related camera position and orientation, and the 3D view in turn uses the updated camera details to update the scene rendering. | + | A camera specifies a viewer //origin// (sometimes also called "eye position") and an //orientation// ("direction"). When you use the mouse or keyboard to look, move, pan, zoom or orbit in a 3D view, you actually manipulate the related camera position and orientation, and the 3D view in turn uses the updated camera details to update the scene rendering. |
| We believe that the mouse and keyboard camera controls of section [[mapping:cawe:views]] are so powerful and easy to use that you will use them virtually all the time. | We believe that the mouse and keyboard camera controls of section [[mapping:cawe:views]] are so powerful and easy to use that you will use them virtually all the time. | ||
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| You can create new cameras (and assign them in turns to 3D views), and edit their origins and orientations in the 2D views. | You can create new cameras (and assign them in turns to 3D views), and edit their origins and orientations in the 2D views. | ||
| - | /* // Das sollte nur bei "Delete a Camera" stehen: | + | To activate the Camera tool, click on the related icon in the tool bar or press ''Shift+C''. |
| - | Since CaWE has always a 3D view, there has to be at least one camera in each map. */ | + | |
| - | /* // Das sollte bei "Eine neue Camera anlegen" stehen: | ||
| - | Using more than one camera makes it possible to "save" a certain camera position and return to it later and therefore makes navigation in big maps a lot easier. */ | ||
| - | To activate the Camera tool, click on the related icon in the tool bar or press ''SHIFT+C''. | + | ===== Camera display in 2D views ===== |
| + | {{:mapping:cawe:editingtools:cameras_2d_tool_other.png |Cameras in a 2D view when a tool other than the Camera tool is active. The most recently used camera is highlighted.}} When a tool other than the Camera tool is active, cameras are shown with a gray dot at their origin and a gray line that indicates their viewing direction (orientation). | ||
| - | ===== Creating a camera ===== | + | The most recently used (or changed) camera is highlighted in a brighter shade of gray: For example, [[mapping:cawe:views#the_active_view|activating a 3D view]] highlights the related camera.<clear> |
| - | {{:mapping:cawe:editingtools:cameracreate.png }} | + | {{:mapping:cawe:editingtools:cameras_2d_tool_camera.png |Cameras in a 2D view when the Camera tool is active. The most recently used camera is highlighted.}} When the Camera tool is active, the cameras are displayed in colors so that they are easier to spot in the map. |
| - | To create a new camera you have to hold the ''SHIFT'' key down and left click into a 2D view to define an eye position and then move the mouse to drag a viewing direction for this camera. | + | As before, the most recently used (or changed) camera is highlighted in brighter colors.<clear> |
| - | <clear> | ||
| - | {{:mapping:cawe:editingtools:cameraactiveinactive.png }} | + | ===== Creating and deleting cameras ===== |
| - | The eye position of the camera is displayed as a cyan colored circle and the viewing angle is a red line if the camera is the active camera of the 3d view or a cyan line if the camera is currently inactive. | + | {{:mapping:cawe:editingtools:cameras_create.png |Use Shift+LMB to create a new camera.}} |
| + | To create a new camera, press and hold the ''Shift'' key, then use the left mouse button to drag a line in one of the 2D views. The starting point of the line becomes the camera origin, the line itself defines the orientation. | ||
| - | As the new camera is created, it becomes the active camera and the 3D view changes to this camera. | + | Having multiple cameras distributed at key locations in the map can facilitate map navigation a lot, as a 3D view can cycle through all available cameras as described [[mapping:cawe:editingtools:camera#switching_cameras|below]]. |
| + | |||
| + | At this time, cameras that are not assigned to a 3D view are not saved with the map; they are lost when the map is closed. | ||
| + | You can manually delete an active camera via the **Edit -> Delete** menu item. | ||
| + | The last camera cannot be deleted, as there is at least one 3D view that it is assigned to. | ||
| - | Note that created cameras are not saved and lost if you close the map. | ||
| ===== Manipulating the origin and orientation ===== | ===== Manipulating the origin and orientation ===== | ||
| - | The most powerful and most convenient method to manipulate a camera is to use the controls described in section [[mapping:cawe:views#navigating_the_3d_views|Navigating the 3D views]] (in addition, the controls described there do not require the Camera tool to be active: they work always). | + | The most powerful and most convenient methods to manipulate a camera are the controls described in section [[mapping:cawe:views#navigating_the_3d_views|Navigating the 3D views]] (in addition, the controls described there do not require the Camera tool to be active: they work always). |
| Sometimes however, it is worthwhile to set the origin and/or the orientation in a 2D view: | Sometimes however, it is worthwhile to set the origin and/or the orientation in a 2D view: | ||
| - | {{:mapping:cawe:editingtools:cameramoveposition.png }} | + | {{:mapping:cawe:editingtools:cameras_move_pos.png |Click and drag the dot in order to move the camera origin.}} |
| - | To change the position of the camera eye, click on the cyan colored circle and drag it to its new location. | + | Click and drag the dot in order to move the camera origin. |
| - | + | ||
| - | <clear> | + | |
| - | + | ||
| - | {{:mapping:cawe:editingtools:cameramoveangle.png }} | + | |
| - | + | ||
| - | To change the heading of the viewing angle, click on the endpoint of the line representing the viewing angle and drag it to its new position. | + | |
| - | <clear> | + | /* Eine normale " - ..." Liste funktioniert hier nicht gut... */ |
| + | • Holding the ''Alt'' key while dragging toggles grid snapping.\\ | ||
| + | • Holding the ''Ctrl'' key moves the line as well (and thus the camera as a whole).<clear> | ||
| - | Note that you can also move the whole camera preserving its current heading by pressing the ''CTRL'' key while moving either camera position or viewing angle. | + | {{:mapping:cawe:editingtools:cameras_move_dir.png |Click and drag the end of the line in order to change the camera orientation.}} |
| + | Click and drag the end of the line in order to change the camera orientation. | ||
| + | (The //length// of the line does not matter. You can for example drag the end of the line onto the object of interest, to center it precisely in the related 3D view.) | ||
| + | /* Eine normale " - ..." Liste funktioniert hier nicht gut... */ | ||
| + | • Holding the ''Alt'' key while dragging toggles grid snapping.\\ | ||
| + | • Holding the ''Ctrl'' key moves the dot as well (and thus the camera as a whole).<clear> | ||
| - | ===== Switching between cameras ===== | ||
| - | Only one camera can be active at a time and therefore define the viewport of the 3D view. To change the active camera you can use the ''PAGEUP'' and ''PAGEDOWN'' keys to cycle trough all cameras. | + | ===== Switching cameras ===== |
| - | Another way to change the active camera is to click on the camera in a 2D view. | + | In order to assign a 3D view (the [[mapping:cawe:views#the_active_view|active]] 3D view) another camera, use the ''Page Up'' and ''Page Down'' keys to cycle through all cameras in the map. |
| ===== Camera tool keyboard shortcuts ===== | ===== Camera tool keyboard shortcuts ===== | ||
| - | * ''PAGEUP'' | + | ^ Key ^ Action ^ |
| - | * Activate next camera. | + | | ''Page Up'' | Assign the next camera to the currently active 3D view. | |
| - | * ''PAGEDOWN'' | + | | ''Page Down'' | Assign the previous camera to the currently active 3D view. | |
| - | * Activate latter camera. | + | | ''ESC'' | Quit the camera tool and switch to the [[mapping:cawe:editingtools:selection|Selection]] tool. | |
| - | * ''ESC'' | + | | ''Shift'' | LMB-clicking and dragging in a 2D view creates new camera. | |
| - | * End camera tool and switch to Selection tool. | + | | ''Ctrl'' | Move the camera as a whole when dragging one of its handles. | |
| - | * ''SHIFT'' | + | | ''Alt'' | Temporarily toggle grid snapping while dragging a camera handle. | |
| - | * Clicking in 2D view creates new camera | + | |
| - | * ''CTRL'' | + | |
| - | * While moving the camera -> camera heading doesn't change | + | |
mapping/cawe/editingtools/camera.1288473069.txt.gz · Last modified: 2013-01-07 12:07 (external edit)