Plz Help, How to bank a camera in Script?

butaixianran

How to bank camera in script? Please help.

I created a camera in script like this :

//Add new camera
var cam = new DzBasicCamera();
cam.setName( "cameraName" );
Scene.addNode( cam );
var tick = Scene.getTimeStep();

then, I set the X,Y,Z rotation with Rotation Control (XRotControl, YRotControl and ZRotControl)

But I found that operate ZRotControl is not bank!
And when I banking this camera in DAZ View (ctrl + right click + drag), all the X, Y, Z rotation are changing.

Is there a way to do this in script ?

Thanks!

rbtwhiz

Yes, there is... quaternions.

var oViewportMgr = MainWindow.getViewportMgr();
var oViewport = oViewportMgr.getActiveViewport();
var oViewport3D = oViewport.get3DViewport();

var oCamera = oViewport3D.getCamera();
var quatStart = oCamera.getLocalRot();
var vecAxis = new DzVec3( 0.0, 0.0, 1.0 );
var nDegrees = 45;
var nRadians = nDegrees * 0.0174532925;
var quatBank = new DzQuat( vecAxis, nRadians );

quatBank = quatBank.multiply( quatStart );
oCamera.setLocalRot( quatBank );

-Rob

butaixianran

rbtwhiz said:

Yes, there is... quaternions.

var oViewportMgr = MainWindow.getViewportMgr();
var oViewport = oViewportMgr.getActiveViewport();
var oViewport3D = oViewport.get3DViewport();

var oCamera = oViewport3D.getCamera();
var quatStart = oCamera.getLocalRot();
var vecAxis = new DzVec3( 0.0, 0.0, 1.0 );
var nDegrees = 45;
var nRadians = nDegrees * 0.0174532925;
var quatBank = new DzQuat( vecAxis, nRadians );

quatBank = quatBank.multiply( quatStart );
oCamera.setLocalRot( quatBank );

-Rob

Thanks! This helps a lot!