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Im new at blender and i stumble this problem on my simple character project where the character using lattice / flat eye, is there any way to make an eye tracker to animate the character because the one tutorial i found need me to not applying the lattice modifier while my character already applied it and i havent found a way to do this with lattice modifier already applied, or is there realy no other way ?

blend file : http://pasteall.org/blend/index.php?id=52053

Thankyou

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It is well explained here.

I don't think it is recommended to apply the Lattice modifier, and I think you should begin with a round sphere, not a flat sphere, otherwise it won't deform properly. So:

  • First create your lattice around your eye sphere. Keep the lattice cubic. Give your eye a Lattice modifier with the Lattice as Object. Give your lattice a basis shape key and create a second shape key.

enter image description here

  • Keep the lattice selected, go in Edit mode, select the second shape key, scale the lattice on the Y axis.

enter image description here

  • Back in Object mode, select the second shape key and push the value to 1, the eye should deform. Then bring it back to 0 for the moment.

enter image description here

  • Create a bone at the center of the eye, use the 3D cursor as Pivot Point to rotate it 90° so that it point forwards. Create a second bone that will be the target. Give the first bone a Track To constraint with this second bone as Target. Parent the eye to its bone, move the target, the eye should follow.

enter image description here enter image description here

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  • $\begingroup$ thankyou for answering my question again, yes i end up making the eye again and not applying the modifier and it looks like it work but i have problem cause the pupil look at the back(inside of face) instead of front whenever i use copy rotation (using youtube method) and when i use the bone method you explained the pupil facing upward. its like the rotation messed up or something this is my updated file if you dont mind to take a look : pasteall.org/blend/index.php?id=52057 $\endgroup$ – Jolzal Jul 16 at 10:01
  • $\begingroup$ you must give your bone a BONE constraint (select it in Pose mode and select the BONE CONSTRAINTS tab), not an OBJECT constraint to the armature, plus keep both the 2 bones within the same armature, it will be much more convenient $\endgroup$ – moonboots Jul 16 at 11:50
  • $\begingroup$ thankyou work perfectly $\endgroup$ – Jolzal Jul 18 at 6:45
  • $\begingroup$ also when you'll make a face, join these bones to the same armature, it will make things easier as well $\endgroup$ – moonboots Jul 18 at 6:54
  • $\begingroup$ yea i already joined the focus and eye bone , but should i join the left and right eye to one armature ? and is it okay to separate eye bone and body rig? $\endgroup$ – Jolzal Jul 18 at 7:25

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