If you are working with Element 3D V2 in After Effects for your 3D workflow, you might want to bring in a 3D object built in Maya. To do this, you first need to export the Maya scene as an OBJ model. Simple enough, right? That'll only bring the Maya object into Element 3D as one big object with the same texture. Great if you just want to slap one material on an object and move a 3D After Effects camera around it, but not great if you want assign different materials to different parts of the 3D object, or want to animate individual parts separately.
If you want to have different materials on different parts of the object, you'll have to do some additional set-up work in Maya to assign different materials to different parts of the object. This way, Element 3D will read the different materials as markers for different parts of the object. You can then assign new materials to each part of the 3D model in Element 3D. By doing this, with a new feature of Element 3D V2, you can also create animation on each individual piece by using Auxiliary or AUX Channels. To learn how to import 3D objects from Maya into Element 3D V2, check out the video above.
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For a step-by-step breakdown of the process of bringing a Maya 3D Object into Element 3D V2, you first need to turn on OBJ export in the Maya plug-ins manager, which is in Windows > Settings/Preferences > Plug-ins Manager. You then want to scroll down and check on "OBJexport.Bundle"
The next step is to export the Maya 3D Object as an OBJ, by going to File > Export all, and making sure you select "OBJexport" from the "Files of Type" drop-down.
Next, back in After Effects, within the scene settings for Element 3D V2, you'll want to hit the Import button and locate the OBJ Model.
This will bring in the 3D object as one big object and material. If you want to be able to assign different Element 3D V2 Materials to different parts of the object, you'll have to jump back over to Maya and do a bit of additional work. To allow Element 3D to read different parts of the 3D OBJ model as different materials, all you need to do is assign a new material to each piece of the object, by right clicking and selecting "Assign New Material."
It doesn't matter what color the material is, just that each part is a different material. I usually throw on a bunch of bright colors in Maya for reference, and end with a crazy rainbow colored 3D Model in Maya that looks something like this:
This way, when you bring the 3D Object back into Element 3D V2 as an OBJ Model, each piece will be separate. This will allow you to assign new materials to each piece.
This process can also be used to animate each piece separately, by creating a duplicate of just one piece, and assigning it to an Auxiliary or AUX Channel. This setting is new to Element 3D V2, so be sure to update!
Then, after you've assigned different pieces to different AUX channels, you can animate position, scale, and rotation separately on the Element 3D effect, under Group > Aux Channels. This new system of groups with Aux channels massively grows the type of specific animation you can do in Element 3D V2.
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