Replaced calls to recently removed methods (.GetSrcObjectCount and
.GetSrcObject, previously deprecated) with existing variants.
See
http://help.autodesk.com/view/FBX/2017/ENU/?guid=__files_GUID_2A50CD0F_062D_4F80_88C7_BBA0483FBE0F_htm
for details

* remove repeated calculation from renderer

* remove now redundant getter

* unnecessary shared=false ( false is default )

* fix using in vertex shader

* cleanup

* cleanup

* cleanup

* fix title

* cleanup

* fix use of includes and extension in expression

* debut VarNode and varying example

* #9663: Fix radius bug in CylinderBufferGeometry

* CylinderBufferGeometry: simplify normal generation

* CylinderBufferGeometry: Cleanup

* CylinderBufferGeometry: Rename tanTheta variable

* Fix distortion on stereo camera when zoom is not equal to one.

* Add parenthesis to make the code changes clearer.

* Add a local zoom variable to StereoCamera to keep track of changes.