Use RenderMaterial() instead of SendMaterialProperties()

This changes the vtkCompositePainter class to use RenderMaterial()
instead of SendMaterialProperties() for setting the solid color on
individual blocks. The SendMaterialProperties() call did not correctly
scale the material properties.

Change-Id: Ia17ccbd75e677770e3ebf2cdb30bda224c62f3dd
Added ability to read function files to Plot3D reader.

The Plot3D reader now supports the ability to read function files.

Change-Id: Ic351dc2d6885e7015781006967956d38376b36cf
BUG: Fix GetProcAddress call when OSMesa is being used.

When OSMesa was used (and VTK was built without X), we ended up not loading any
of the extensions since GetProcAddress() didn't use the equivalent call for
OSMesa i.e. OSMesaGetProcAddress(). This patch addresses that issue.

Change-Id: Ia4e83f6884bd6e178f160934ff749cff4ef1e788
Fix unused variable warning.

Change-Id: I7f87745669f6f9f22a77139dcf25518c68159595
Fix logical error in TestInteractorStyleImageProperty.

This test was printing an error message even when succeeding.

Change-Id: I5e76ef8182003fa2a9f08f715bbb0cbd843f289c
Merge topic 'istyleimagepropertytest-fix' into master

5c1e16d7 Fix logical error in TestInteractorStyleImageProperty.
Merge topic 'scalarbar-warnings' into master

a80bad6c Fix unused variable warning.
Fix camera problem in TestXMLUnstructuredGridReader.

Calling Elevation(90) causes the view plane normal to become
parallel to the "view up" vector, and subsequent orthogonalization
of the "view up" vector has an undefined result (i.e. it could
go either way, depending on the roundoff error on a particular
architecture).  The ViewUp should be set explicitly.

Change-Id: Ib22cf101ebb3b5d620e14d1d4cb13c25847c32ad
Several enhancements to the Plot3D readers.

- Added ability to read function files
- Minor cleanup
- Refactored internal class so that it can be used by
subclasses in the future.

Change-Id: I2eaa819ccace77d30379bc90f5f9956bcd1d58a7
Merge topic 'plot3d-function-support' into master

5a824a95 Several enhancements to the Plot3D readers.
3d8bbc74 Added ability to read function files to Plot3D reader.
Merge topic 'osmesa_extensions' into master

a142841a BUG: Fix GetProcAddress call when OSMesa is being used.
Merge topic 'multi-block-color-support-2' into master

e3f5e52d Use RenderMaterial() instead of SendMaterialProperties()
Merge topic 'ugridreader-test-fix' into master

d8229dfd Fix camera problem in TestXMLUnstructuredGridReader.
allow os mesa to provide more than version 1.1

Change-Id: I93e5d0ceee726bdce813e863d8847c23c8393eaf
Merge topic 'osmesa_extensions' into master

c6a02eef allow os mesa to provide more than version 1.1