Camera Commands
Camera manipulation commands follow the same concept as @setenv where a single object can exclusively lock control of the camera.
While we don't anticipate major changes the final implementation and behaviour of these commands isn't set in stone and subject to your feedback.
Contents
Setting Camera values
@setcam=<n|y>
Only one object can hold this behaviour at a given time (debug output will show "locked" as the failure message on subsequent attempts). When an object holds the lock, all camera commands from all other objects will be ignored; when the object releases the lock all other camera behaviours will be restored.
@setcam_eyeoffset[<vector3>]=force
Changes the default camera offset by manipulating the CameraOffsetRearView debug setting.
@setcam_focus<agent|object|location>[;distance[;direction]]=force
Moves the camera and focus to the specified position (user can still change focus afterwards).
- <agent|object|location> UUID of the object or agent to focus on or a locational vector (in region coordinates)
- <distance> optional (calculated based on the object's size if omitted) distance of the camera to the focus
- <direction> optional (calculated on current camera if omitted) normalized directional vector
@setcam_focusoffset[<vector3>]=force
Changes the default camera focus offset by manipulating the FocusOffsetRearView debug setting.
@setcam_fov
@setcam_fovmin
@setcam_fovmax
@setcam_unlock
Camera Control Examples
Change 3rd person camera position & viewpoint
Basic camera position (as detailed in Penny Patton's A Matter of perspective) can be done via the @setcam_eyeoffset and @setcam_focusoffset commands which adjust the CameraOffsetRearView and FocusOffsetRearView debug settings respectively.
NOTE: if you're using these without @setcam then please restore the default manually after you're done; otherwise @setcam=y will take care of cleaning up and restore things back to the user's default
@setcam_eyeoffset-2/-0.4/-0.2=force
@setcam_focusoffset0.9/-0.7/0.2=force
Restore default 3rd person camera position & viewpoint
@setcam_eyeoffset=force
@setcam_focusoffset=force
Focus on an Agent
Focus on an agent(get your own UUID) from 20m away with your previous camera orientation.
@setcam_focusuuid;20;=force
Focus on an Object
Focus on an object (rez a prim for this and grab its UUID), this will cause the camera to look at the plywood cube (filling the screen) along negative X.
@setcam_focusuuid;;1/0/0=force
Now resize the prim (20x20x20m) and retry the command. You'll note that the plywood cube still fills the screen. If you omit the distance RLVa will calculate it based on scale so the object is always fully in view.
Focus on an Location
Move the camera to <128, 128, 75> looking down at the land.
@setcam_focus128/128/75;;0/0/1=force
Compatibility with existing RLV commands
Existing camera commands that don't fit the setcam_XXX family will currently (silently) translate to their new counterparts this is only a courtesy and these synonyms will be removed in a future release. Please use only @setcam_XXX in any of your products.