Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/documentation/glfvarviewer.rst

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+..  
+     Copyright 2013 Pixar
+  
+     Licensed under the terms set forth in the LICENSE.txt file available at
+     https://opensubdiv.org/license.
+  
+
+glFVarViewer
+------------
+
+.. contents::
+   :local:
+   :backlinks: none
+
+SYNOPSIS
+========
+
+.. parsed-literal:: 
+   :class: codefhead
+
+   **glFVarViewer** [**-f**] [**-u**] [**-a**] [**-l** *refinement level*] [**-c** *animation loops*]
+       *objfile(s)* [**-catmark**] [**-loop**] [**-bilinear**]
+
+
+DESCRIPTION
+===========
+
+``glFVarViewer`` is a stand-alone application that allows the inspection of
+face-varying data interpolation. The window displays 2 views:
+
+    * left side: regular 3D view of the model, with a procedural (u,v) texture
+    * right side: a 2D view of the face-varying (u,v) pair
+
+The HUD allows interactive manipulation of the various face-varying boundary
+interpolation rules and tags.
+
+.. image:: images/uvviewer.jpg 
+   :width: 400px
+   :align: center
+   :target: images/uvviewer.jpg 
+
+OPTIONS
+=======
+
+See the description of the
+`common comand line options <code_examples.html#common-command-line-options>`__
+for the subset of common options supported here.
+
+.. include:: examples_see_also.rst