Maya Back Faces Black - Reverse Normals Doesn't Work

Make sure the Vertex normals aren't locked:
Choose your problem vertexes, then:
Mesh Display > Unlock normals

Then try to flip the normals again:
Go to face mode and select the dark faces then in the top menu go to Mesh Display and under the "Normals" category click reverse


AND/OR
Choose: mesh display > set to face, which usually fixes the reversed normals while also leaving the normals which are fine


If reversing the normals doesn't work, your vertexes are probably locked. Select problem vertexes and go to:
Mesh Display > Unlock normals


You could also try: Shift+RMB go to the bottom and reset normal settings


References:
https://www.reddit.com/r/Maya/comments/51ajr5/why_does_my_objectface_turn_black/

https://www.reddit.com/r/Maya/comments/ab2zfb/imported_object_has_reversed_normals_cannot/

After Effects 4 point Corner pin to 3D Nulls exported from syntheyes

This little script you can attach to your corner pin points to nulls in 3D space.

For example, lets say you wanted the “Upper Left” corner pin point to be bound to a 3D null called "tracker 20. You would alt-click the stopwatch on the specific corner pin and then type this:

L = thisComp.layer("Tracker20");
L.toComp([0,0,0]);

That would force the 2-dimensional corner pin point to align to the 3 dimension position of the null. Rinse and repeat for the other 3 points.

IMPORTANT: You need to have your graphic /video to be corned pinned precomped inside a precomp that is the full size of your main comp and scaled to fit that precomp that it's inside of.

If the nulls go off camera you might have issues.

Export Maya Camera to After Effects

The easy way would be to use Adobe After Effects Live Link but if you have an older version of maya that may not be an option for you. :)

First in Maya.

1. Name camera starting with "Cam"

2. Name nulls you want to carry over Null_1,Null_2 etc


3. Change the maya scene to mm

(Make sure you don't save OVER your maya project after changing to mm it may screw up things.)

4. Save your scene before baking the keyframes. Then select the camera and nulls and bake them for the duration of the animation.

5. Select those items and export select as .ma

6. Then just import the .ma into after effects!

Maya proper way to do overscan

Proper location to do overscan in maya.

DO NOT use prescale or post scale, use the Camera Scale setting.

Simply decide what percentage you want overscan. In my case 33% Then take your original NON overscan size in render settings multiply it by 1.33 (in my case) and that is your new overscan render dimensions.

If you need to offset in a direction (for instance to only have overscan on the top. you can use the Film offset setting.