-
Shadow Problem with Essential Graphics and Collapse Transformations 3D Precomp
This may be a bug, but I’m hoping someone has a solution.
I have a precomp with 3D layers using essential graphics (so I can create multiple versions). In my main comp, I have the camera and light. The shadow cast by the object in my 3D layer doesn’t change accordingly when I alter some of the essential properties from their original default values (although, oddly, it does change accordingly when I change other essential properties).
Here are some screen shots to illustrate. My main comp is “Opening Title Animation” and my precomp is “Ripped Paper Generator”.
The first is the main comp with the problem essential properties (“dimensions”and “random seed”) set to default values, but other essential properties have been adjusted (“paper scale” and “main paper z pos”). In it, the shadow has correctly changed to match the adjusted properties.
The 2nd is the same comp with the problem properties adjusted from their defaults
(“dimensions” and “random seed”). The shadow has not changed to match the objects casting the shadows.The final screenshot shows the contents of the precomp.
Any help would be greatly appreciated. Thanks!
-
4 Replies
-
For anyone who encounters this thread in the future, I’ve got a solution. It took a day for Adobe tech support to come up with it, and I’m not sure why it fixes the issue, but it does.
Solution, switch the renderer (dropdown in bottom right corner of the composition panel) to Cinema 4D. (Doing so changes the way the lighting looks, so re-adjustment will be necessary.) That’s it!
Anyone have any idea why this works and why the problem exists using the classic renderer?
-
I spoke too soon! Changing the render engine solves the one problem but introduces another! Now the essential properties of the precomp don’t adjust individually. If I change them in on one instance of the precomp, it changes them in all instances.
Still need help! Anyone?
-
If you change the parameters that don’t correctly affect the shadow (with Classic Renderer), then Edit > Purge > All Memory and Disk Cache, do the shadows re-render correctly?
-
Thanks for your reply. I was so hoping that would work but it didn’t. The problem can be re-created quite simply with the following steps:
1) Create a new comp (1920×1080, name “Main”), add a camera, a point light (casts shadows: on) and a red solid.
2) Adjust
the z position of the light so that it’s behind the camera. Make the
solid a 3D layer and turn on “accepts shadows” in the material options.3) Create a new comp (1920×1080, name “Precomp”), add a new shape layer with a centred, 400×400, blue-filled rectangle.
4) Make the shape layer 3D, set its z position property to -400, and turn on “casts shadows” in the material options.
5) Open
the essential graphics panel and select “Precomp” from the primary
dropdown. Drag the rectangle path size property to the
essential graphics panel.6) In the “Main” comp, add the “Precomp” above the solid. Turn on collapse transformations and 3D layer checkboxes.
Adjusting the rectangle size essential property
changes the shape of the blue box, but the shadow does not correctly reflect
any changes from the default values.Any help would be very much appreciated! Thanks again!
Reply to this Discussion! Login or Sign Up