coverflow sort of???

[Ben Rollason]

Okay… I’ve got a comp 860×484… don’t know why that size, but anyway.

In the middle is a blue solid 200×200, which sits at [430, 242].

On to this solid (which is a 3D layer) I set position to…

origTY = 242; // orig (central) y position.
tMaxHeight = 200; //max y movement above or below origTY
tDepth = tMaxHeight*3; //you can make this more than max height to exagerrate the depth. At 1, the object will describe a circle.

tY = transform.position[1];
tY = (tY > origTY + tMaxHeight?origTY + tMaxHeight: (tY < origTY - tMaxHeight? origTY - tMaxHeight: tY)); //clamp tY so it can't move outside its upper or lower bounds. acosY = Math.acos((tY-242)/tMaxHeight); tZ = Math.sin(acosY); [transform.position[0], tY,(-tZ*tDepth)+tDepth];

and orientation to...

origTY = 242; //orig (central) y position
tFactor = 1.5; //adjust for more or less rotation
xRot = transform.position[2]/10;
[-tFactor * xRot * (((transform.position[1] > origTY)*2)-1), transform.orientation[1], transform.orientation[2]]


I think that gives you something like you're after. The trigonometry causes the solid to move back in space in a circular fashion. It's essentially describing a circle with a central point tMaxHeight behind your solid. The movement is driven by animating the y position.

The rotation is arbitrary, based on the movement back in z space.

Hope that helps,

-Ben.

http://www.benrollason.com