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I was beating my head against the wall trying to figure out why my sourcerectattime expression wasn't accurate and then I noticed that it doesn't take into account the 3D position. I found a forum post related to this with a possible solution from Dan, but the original post wasn't exactly my issue so I wanted to make sure there wasn't a simpler solution to getting the screen space of a 3D layer.Â
Dan's expression from the post I found. --- Common to position and scale expressions: L=thisComp.layer("3d layer"); R=L.sourceRectAtTime(time,false); UL = L.toComp([R.left,R.top]); UR = L.toComp([R.left+R.width,R.top]); LR = L.toComp([R.left+R.width,R.top+R.height]); LL = L.toComp([R.left,R.top+R.height]); maxX = Math.max(UL[0],UR[0],LR[0],LL[0]); minX = Math.min(UL[0],UR[0],LR[0],LL[0]); maxY = Math.max(UL[1],UR[1],LR[1],LL[1]); minY = Math.min(UL[1],UR[1],LR[1],LL[1]); Add this for position: [maxX+minX,maxY+minY]/2; Add this for scale: w = maxX - minX; h = maxY - minY; [(w/width),h/height]*100 Dan  --- |
