[jfx-tests] RFR: 8315842: 3D tests fail because of edge pixel differences [v2]

[Jayathirth D V]

> Out of 62 3D tests, 26 tests fail because of minute color differences in edge pixels.
> These tests are used to verify 3D rendering with different parameters like translation, rotation.
> 
> So adding little color tolerance will not change the test behavior and allows us to use these tests to automatically verify any regression introduced in 3D rendering.
> 
> Added 5% color tolerance and with this change 23 of these tests pass.
> 
> Some sub-tests under below 3 tests continue to fail because of other reasons:
> [test/scenegraph/fx3d/camera/fixedeye/PerspectiveCameraFixedEyeIsolateTest.java](file:///Users/jdv/dev/workspace/jfx/jfx-tests/functional/3DTests/build/test.workdir/test/scenegraph/fx3d/camera/fixedeye/PerspectiveCameraFixedEyeIsolateTest.jtr)
> [test/scenegraph/fx3d/camera/parallel/ParallelCameraIsolateTest.java](file:///Users/jdv/dev/workspace/jfx/jfx-tests/functional/3DTests/build/test.workdir/test/scenegraph/fx3d/camera/parallel/ParallelCameraIsolateTest.jtr)
> [test/scenegraph/fx3d/camera/perspective/PerspectiveCameraIsolateTest.java](file:///Users/jdv/dev/workspace/jfx/jfx-tests/functional/3DTests/build/test.workdir/test/scenegraph/fx3d/camera/perspective/PerspectiveCameraIsolateTest.jtr)
> 
> Also i see that some of the camera tests just draw white images, this also needs to be verified.
> With this change 41 out of 62 3D tests will run properly.

Jayathirth D V has updated the pull request incrementally with one additional commit since the last revision:

  Use common tolerance variable

-------------

Changes:
  - all: https://git.openjdk.org/jfx-tests/pull/5/files
  - new: https://git.openjdk.org/jfx-tests/pull/5/files/70f97e8c..b3d3aa25

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx-tests&pr=5&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx-tests&pr=5&range=00-01

  Stats: 53 lines in 27 files changed: 27 ins; 0 del; 26 mod
  Patch: https://git.openjdk.org/jfx-tests/pull/5.diff
  Fetch: git fetch https://git.openjdk.org/jfx-tests.git pull/5/head:pull/5

PR: https://git.openjdk.org/jfx-tests/pull/5