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mapping:cawe:editingtools:camera [2007-10-05 17:09] Joern created |
mapping:cawe:editingtools:camera [2013-01-07 12:07] (current) |
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| {{mapping:cawe:editingtools:cawe_toolbar_camera.png?80 }} | {{mapping:cawe:editingtools:cawe_toolbar_camera.png?80 }} | ||
| - | A camera is simply an eye position and a viewing angle that decides in which direction the eye is looking. | + | 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: | ||
| + | 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. | ||
| - | The 3D view of CaWE needs a camera to decide what part of the level geometry to display. | + | 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. |
| - | Since CaWE has always a 3D view, there has to be at least one camera in each map. | + | The purpose of the Camera tool is to add the less frequently needed extras: |
| + | You can create new cameras (and assign them in turns to 3D views), and edit their origins and orientations in the 2D views. | ||
| - | The Camera tool allows to create additional cameras, change their position and viewing angle and switch between them. | + | To activate the Camera tool, click on the related icon in the tool bar or press ''Shift+C''. |
| - | 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 map 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 ===== |
| - | ===== Creating a camera ===== | + | {{: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). |
| - | {{:mapping:cawe:editingtools:cameracreate.png }} | + | 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> |
| - | 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 angle for this camera. | + | {{: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. |
| - | <clear> | + | As before, the most recently used (or changed) camera is highlighted in brighter colors.<clear> |
| - | {{:mapping:cawe:editingtools:cameraactiveinactive.png }} | ||
| - | 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. | + | ===== Creating and deleting cameras ===== |
| - | As the new camera is created, it becomes the active camera and the 3D view changes to this camera. | + | {{: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. | ||
| - | Note that created cameras are not saved and lost if you close the map. | + | 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]]. |
| - | ===== Moving a camera ===== | + | 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. | ||
| - | There are two ways to move a camera: | ||
| - | ==== Moving a camera in 2D view ==== | + | ===== Manipulating the origin and orientation ===== |
| - | {{:mapping:cawe:editingtools:cameramoveposition.png }} | + | 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). |
| - | To change the position of the camera eye, click on the cyan colored circle and drag it to its new location. | + | |
| - | <clear> | + | Sometimes however, it is worthwhile to set the origin and/or the orientation in a 2D view: |
| - | {{:mapping:cawe:editingtools:cameramoveangle.png }} | + | {{:mapping:cawe:editingtools:cameras_move_pos.png |Click and drag the dot in order to move the camera origin.}} |
| + | Click and drag the dot in order to move the camera origin. | ||
| - | 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. | + | /* 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> | ||
| - | <clear> | + | {{: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.) | ||
| - | Note that you can also move the whole camera preserving its current heading by pressing the ''CTRL'' key while moving either camera position or vieweing angle. | + | /* 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> | ||
| - | ==== Moving a camera in 3D view ==== | ||
| - | Moving the active camera of the 3D view doesn't require the Camera tool to be active. You can change the camera position and heading by moving in a direction with the ''WASD'' keys or changing the camera heading with the "arrow" keys. | + | ===== Switching cameras ===== |
| - | With an activated Camera tool however, you can control the camera position using your mouse. While holding the left mouse button down you can change the viewing angle by moving your mouse and holding the right mouse button down enables you to strafe the camera position in the direction of your mouse movement. | + | 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. |
| - | ===== 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'' key to cycle between cameras. | ||
| - | |||
| - | Another way to change the active camera is to click on the camera in a 2D view. | ||
| ===== 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.1191596975.txt.gz · Last modified: 2013-01-07 12:07 (external edit)