Camera Control

Ok... I have the basics of the Camera Control down pat but say I want to have the camera create a static look... Ok so you ask... WTH do you mean... Well I'm trying to get it so that when you hop on a pose ball no matter where it's at or what it's rotation is have it basically look exactly the same... Centered in on the AV with the entire AV Showing with about a meter on top and bottom... Basically a centered shot... I'm trying to create a newb friendly photobooth... So to get those great shots you merely need to press ESC instead of having to setup the shot yourself... Would love any help I can get... And may even pay...

Heratiki Turnbull

Sounds like you'd be better off using the old fashioned, pre v1.9 camera commands: llSetCameraEyeOffset and llSetCameraAtOffset. Those only work when the avatar sits on the object (which is what you're doing anyway), and they don't require permissions (unlike the new v1.9 camera controls). Here's a basic example. You'll likely need to tinker with the offset vectors (all are relative to the root prim the script is placed inside) a bit to get the exact distance from and framing around the avatar in your booth, but this should give you a good start. The nice thing here is if you rotate the pose ball, the camera will automatically rotate with it, without the need for calculations of rotation and distance vectors.

default 
{
    state_entry() 
    {
        // The camera is located 4m in front of the pose ball, and 1m above it.
        llSetCameraEyeOffset(<4, 0, 1>);
        // The camera is focused on a point 1m above the pose ball,
        // and thus is facing back towards the avatar sitting on it.
        llSetCameraAtOffset(<0, 0, 1>);
     }
}

Thanx I'll give that a definite try... Question though... Will I have to change the values whenever the Pose ball is rotated around... But I'll definitely give that a try... Thank you again...

Heratiki

Yeah, the camera will rotate with the poseball. Depending on the pose, it could be easier to change the sit rotation in the sit animation script, and leave the poseball itself unrotated. But I suppose that defeats the purpose of using poseballs!

If you don't want to have the camera rotate with the pose ball, you could look into the v1.9 camera control functions, and set the CAMERA_FOCUS and CAMERA_POSITION variables. (You'll need to work out the permissions and such to activate when an avatar sits on the pose ball, but you already know that.) The CAMERA_POSITION and CAMERA_FOCUS work off region coordinates (thus the llGetPos() adder). The snippet below will locate the camera 4m in the region's absolute +X direction (East) and 1m above the pose ball. And the camera will look back at a point 1m above the pose ball. This will look identical to what the old style script above does, but it will set the camera in the same position no matter what the rotation of the poseball is.

llSetCameraParams([
    CAMERA_ACTIVE, TRUE, // Yes, we want to control the camera.
    CAMERA_FOCUS, llGetPos() + <0,0,1>, // The camera is focused on this point.
    CAMERA_FOCUS_LOCKED, TRUE, // And doesn't change focus.
    CAMERA_POSITION, llGetPos() + <4,0,1>, // The camera is located at this point.
    CAMERA_POSITION_LOCKED, TRUE // And doesn't change position.
]);

You'll make your life easier if you setup your photo booth in an east-west or north-south orientation, so you don't have to do rotation calculations to figure out the offset vector for the CAMERA_POSITION. (I'm not even going to attempt to explain that. Rotation calcs give me the willies.) Good luck!

Yeah currently it works great without all the Rotation calculations... 2 days ago I attempted to sit down and work out the calcs myself and I think my brain went into melt down... I just started babbling non-sensical words... It was horrible at the very least... Anyways... The old school method seems to work pretty well... If you get a chance IM me in world and I'll show ya... Thanx again...

Heratik Turnbull