Hey Tim --
if this is related to your earlier DOF control post...
Instead of using an ICE approach, you could try the following, which might
be adequate:
1. create your ICE instance cloud
2. create a null -- let's name it "null" for creativity's sake
3. add your bokeh lens shader to the camera of choice
4. set up an expression using the distance from the null to the camera
to set the Focus distance:
1. right-click on the Focus distance animation icon in the bokeh
shader PPG
2. choose "expression editor..."
3. copy/paste this into the expression editor: ctr_dist_cam( null. )
4. click "Apply"
5. Now you can move your null around the scene, and snap it to any
actual geo with the regular snapping controls, and keyframe the null
6. If you include points in the snap-to options, you can snap the null
to the points in the cloud that's instancing your instance geo. As long as
the instanced objects aren't very big relative to your DOF distance range,
this may be accurate enough.
hope this helps,
Ed
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