How do get cast shadows to react with Turbulent Displace on a shape?

[Paloma26805941mvkb]

Basically, I have a wiggly shape on a 3D layer but the cast shadows aren't wiggling with the shape. Video attached.

The yellow shape has a Turbulent Displace effect on it. The evolution has an expression "time*200"
Cast shadows are switched on. There's a spotlight layer with cast shadows enabled.

The cast shadow only keeps the shape's original contour and doesn't reflect the turbulent displacement. How do I fix this?

[Mylenium]

Any chance you're using the C4D renderer? If so, switching to the Standard renderer would be the first thing to do. Otherwise a screenshot of the timeline and composition might clarify things. Cropped screenshots or rendered clips don't really tell us much.

Mylenium 

[Paloma26805941mvkb]

I'm using the Classic 3D renderer.

Here is a screenshot of everything.

[Mylenium]

Turn off the motion blur preview and check your hardware acceleration and/ or turn off Draft 3D. This looks like just another of those quadrillion bugs/ issues with GPU functions.

Mylenium 

[Paloma26805941mvkb]

Thank you for your suggestions, unfortunately the cast shadows are still static.

[Rick Gerard · Accepted solution]

You have a rendering order problem. Pre-compose the layer with Turbulent Displace moving all attributes, move the Turbulent Displace Effect to a 2D Adjustment layer above the original 3D layer, and return to the Main comp and Collapse transformations.  That should solve your rendering order problem. 

[Paloma26805941mvkb]

Fantastic! Thank you so much, this worked perfectly.

I also found that simply pre-composing the shape layer with the Turbulent Displace applied to the shape works just as well.