Docs - Add images for Frames, User and Root Frames Solver UI widgets.

docs/source/tools_solver_ui.rst

@@ -90,8 +90,9 @@ Solver Tabs
 ~~~~~~~~~~~
 
 The Solver tabs define the different solvers and the options for each
-solver. The different solvers tabs share options, such as frame range,
-but each Solver tab is independent.
+solver. The different solvers tabs share
+:ref:`solver-ui-common-solver-options-ref`, such as frame range, but
+each Solver tab is independent.
 
 The documentation for each Solver tab is below.
 
@@ -102,16 +103,23 @@ The documentation for each Solver tab is below.
     tools_solver_ui_tab_standard
     tools_solver_ui_tab_camera
 
+.. _solver-ui-common-solver-options-ref:
+
 Common Solver Options
-+++++++++++++++++++++
+~~~~~~~~~~~~~~~~~~~~~
 
 The options below are the same on one or many of the Solver tabs.
 
 Frames
-------
+++++++
 
 The Frames option defines the list of frames to be solved.
 
+.. figure:: images/tools_solver_ui_solver_options_frames.png
+    :alt: Solver Frame Options
+    :align: center
+    :scale: 100%
+
 Choose one of the options:
 
 .. list-table:: Frames
@@ -133,6 +141,7 @@ Choose one of the options:
    * - Custom Frames
      - Manually type the frame numbers to be solved.
 
+
 The frame numbers can be entered as '#-#' to define a range, or
 '#,#,#,#' to define a list of individual frame numbers. Examples are
 '1,10,20,30,40,50' or '10-20,30,40-50'.
@@ -145,7 +154,12 @@ currently created, and then reducing this number to '1' to solve each
 frame.
 
 User and Root Frames
---------------------
+++++++++++++++++++++
+
+.. figure:: images/tools_solver_ui_solver_options_user_root_frames.png
+    :alt: Solver User and Root Frame Options
+    :align: center
+    :scale: 100%
 
 The `Root Frames` are used to solve static and animated attributes,
 and are therefore not used with the :ref:`Basic Solver Tab
@@ -185,15 +199,15 @@ Therefore the full list of iterations look like this...
 - Iteration 5: ``1,7,13,19,25,31,37,43,48,54,60,66,72,78,84,90,95``
 
 Solve All at Once
------------------
++++++++++++++++++
 
 `Solve All at Once` will solve all frames in a single solver
 step. This is the most accurate method of solving, because all
 Attributes and Frames are considered when reducing the error, however
 this is much slower.
 
 Solve Only Root Frames
-----------------------
+++++++++++++++++++++++
 
 `Solve Only Root Frames` will skip the last solver step when solving
 only animated attributes for the full frame range. As a result only
@@ -206,23 +220,23 @@ option, or solve with the :ref:`Basic Solver Tab
 <basic-solver-tab-heading>`.
 
 Solve Focal Length
-------------------
+++++++++++++++++++
 
 A toggle to allow focal length attributes to be solved. If this value
 is disabled, all camera focal length attributes will be ignored. This
 option is helpful to quickly enable/disable focal length attributes in
 the solver.
 
 Solve Lens Distortion
----------------------
++++++++++++++++++++++
 
 A toggle to allow lens distortion attributes to be solved. If this
 value is disabled, all camera lens distortion attributes will be
 ignored. This option is helpful to quickly enable/disable lens
 distortion attributes in the solver.
 
 Evaluate Mesh Rivets
---------------------
+++++++++++++++++++++
 
 When enabled, *Evaluate Mesh Rivets* will change the internal
 evaluation method to help solve "complex" node networks (such as Mesh