normalize it back to 1.0 maximum

Requires a compilation of ffmpeg and the test uses
a public domain vp9 test file

11b3d208 Add a Python test of vtkPolyDataItem fixes
fc3bc371 Make sure vtkPolyDataItem handles VTK_POLY_LINE cell type
757f5e85 Fix issue preventing rendering of multiple vtkPolyDataItems
3a2d0ce2 Fix mis-coloring when mixing lines and polys
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Dan Lipsa <dan.lipsa@kitware.com>
Merge-request: !4695

248bf676 Issue error if vtkAlgorithm::GetInputConnection called on wrong port
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Brad King <brad.king@kitware.com>
Merge-request: !4705

248bf676 Issue error if vtkAlgorithm::GetInputConnection called on wrong port
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Brad King <brad.king@kitware.com>
Merge-request: !4705

3d13a10e Update to latest VTK-m
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !4698

The original logic was issuing a warning if querying a connection that
was outside the range of input connections to the port. This led to
warnings in application code that was querying if a particular algorithm
had input connections yet.

The new logic issues an error if the port in reference, is outside the
normal range of input ports for the algorithm but silently returns a
nullptr when the connection index is outside the range of connection
indices for the port i.e. no more warning when no input is provided.

Brings in compatibilty changes for cuda 10.

b75faf9d Merge branch 'upstream-diy2' into fix-diy-installation
713a26f4 diy2 2018-09-24 (3298ccb3)
c7e6181e diy2: update the snapshot to use
248cf8a3 diy2: fix mangling
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4702

b75faf9d Merge branch 'upstream-diy2' into fix-diy-installation
713a26f4 diy2 2018-09-24 (3298ccb3)
c7e6181e diy2: update the snapshot to use
248cf8a3 diy2: fix mangling
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4702

* upstream-diy2:
  diy2 2018-09-24 (3298ccb3)

Code extracted from:

    https://gitlab.kitware.com/third-party/diy2.git

at commit 3298ccb3fd5af6d85fef9f0416f04f7587ddffc1 (for/vtk-20180924-g3298ccb3).

The install directory wasn't working properly.

d87f4cd7 Add error print to vtkParseHierarchy
368bd85c Add missing fclose() to vtkWrapPython
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !4697

Previously this utility would silently call exit(1) if there was
an error while reading the file.  Now it prints a line number.

4f82fd5c Add support of target and level in FBO
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Joachim Pouderoux <joachim.pouderoux@kitware.com>
Acked-by: Mathieu Westphal <mathieu.westphal@kitware.com>
Merge-request: !4693

The vtkWrapPython executable wasn't calling fclose() on its output
file.

d586c51c Fix failing test
82a6cacf Enable MSAA if available
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4676

Tests three things:  1) Make sure we can render multiple vtkPolyDataItem
objects in the scene,  2) ensure we can render a vtkPolyDataItem with
cells of type VTK_POLY_LINE, and 3) test that when cells include both
lines and polys interleaved, cell coloring still works properly.

Previously the code assumed that the full colors array would match
up with either the lines or the polys, but this is not the case when
the polydata has both lines *and* polys.  We have to iterate over
all the cells twice when rendering in order to make sure the color
array is indexed properly for each cell.

ed74f20d ENH: Add functions to set VR physical geometry with matrix
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4692

- Get/SetPhysicalToWorldMatrix functions added to vtkOpenVRRenderWindow to handle the PhysicalTranslation etc. camera related geometry changes as a matrix
- Refactored UpdateHMDMatrixPose code so that it is more understandable what happens under the hood when the camera is set. It works the very same way, but it is now better formalized and readable.
Here's how setting the camera works:
Scaling is applied through moving the camera closer to the focal point, because scaling of all actors is not feasible, and vtkCamera::ModelTransformMatrix is not supported throughout VTK (clipping issues etc.). To achieve this, a new coordinate system called NonScaledWorld is introduced. The relationship between Physical (in which the HMD pose is given by OpenVR) and NonScaledWorld is described by the PhysicalViewUp etc. member variables. After getting the HMD pose in Physical, those coordinates and axes are converted to the NonScaledWorld coordinate system, on which the PhysicalScaling trick of modifying the camera position is applied, resulting the World coordinate system.
- Renamed incorrect distance variable to physical scale

762cf88a fix two dashboard issues vtkCell3D and vtkDataSetSurfaceFilter
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: David E. DeMarle <dave.demarle@kitware.com>
Merge-request: !4690

70cc8c0a Fix volume jitter enable/disable.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ken Martin <ken.martin@kitware.com>
Merge-request: !4688

An easy fix for datasetsurfacefilter and a meh fix for Cell3D

799c638c fix a few issues with occulus controller support
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Csaba Pinter <csaba.pinter@queensu.ca>
Acked-by: Lucas Gandel <lucas.gandel@kitware.com>
Merge-request: !4685

18436989 Fixed some cppcheck warnings, suppressed others
Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: David Gobbi <david.gobbi@gmail.com>
Merge-request: !4675

f05117cd vtkPResampleWithDataSet: update for new diy API changes
cad967ee Merge branch 'upstream-diy2' into update-diy-20180918
5789e33e diy2 2018-09-18 (f402e419)
ad9f7b29 diy2: update the reference tag
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Sujin Philip <sujin.philip@kitware.com>
Merge-request: !4682

f05117cd vtkPResampleWithDataSet: update for new diy API changes
cad967ee Merge branch 'upstream-diy2' into update-diy-20180918
5789e33e diy2 2018-09-18 (f402e419)
ad9f7b29 diy2: update the reference tag
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Sujin Philip <sujin.philip@kitware.com>
Merge-request: !4682

The volume draw command was throwing GL_INVALID_OPERATION
because a sampler was bound but not used, and wouldn't draw
anything. Clearing the noise sampler when it wasn't going to
be used fixed the issue.

d2bc3045 vtkObjectFactory: include <string>
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ken Martin <ken.martin@kitware.com>
Merge-request: !4686