New thermal camera integration test failure for Edifice

[adlarkin]

After forward porting some changes from ign-rendering4 to main, a new integration test failure appeared for the thermal camera. More information can be found in #246.

Environment

• OS Version: MacOS
• Source build (commit https://github.com/ignitionrobotics/ign-rendering/commit/52c4ab0d5a57a793d90171cbc54f324e8aac37d4, main branch at the time of this writing)

Description

• Expected behavior: test/integration/thermal_camera should pass on MacOS.
• Actual behavior: test/integration/thermal_camera failed on MacOS.
• test/integration/thermal_camera does not fail for MacOS on the ign-rendering4 branch: https://github.com/ignitionrobotics/ign-rendering/pull/246#issuecomment-778477528

Steps to reproduce

1. Clone the repo: git clone https://github.com/ignitionrobotics/ign-rendering.git
2. Complete the build so that tests are available:

cd ign-rendering
mkdir build
cd build
cmake ..
make

3. Run the thermal camera integration test:

# the following steps assume you are already in the ign-rendering/build directory
cd bin
./INTEGRATION_thermal_camera

Output

Here is the original failure from CI in #246:

/Users/jenkins/workspace/ignition_rendering-ci-pr_any-homebrew-amd64/ign-rendering/test/integration/thermal_camera.cc:233
The difference between boxTemp and temp is 14, which exceeds boxTempRange, where
boxTemp evaluates to 310,
temp evaluates to 296, and
boxTempRange evaluates to 3.

[adlarkin]

It seems like there are related test failures in https://github.com/ignitionrobotics/ign-gazebo/pull/622, which should also be addressed. I'm guessing that the thermal camera behavior is different in Edifice.

[jacobperron]

Another instance of this test failure: https://build.osrfoundation.org/job/ignition_rendering-ci-ign-rendering5-homebrew-amd64/17/

I noticed many instances of the following logged error (I'm not sure if it's relevant):

[Err] [Ogre2RenderEngine.cc:467] Unable to find Ogre Plugin[/usr/local/opt/ogre2.1/lib/OGRE-2.1/RenderSystem_GL3Plus]. Rendering will not be possible.Make sure you have installed OGRE properly.

[chapulina]

I'm guessing that the thermal camera behavior is different in Edifice.

The test has been flaky on all versions, so I don't think the issue is version-specific. Here are the histories:

• ign-rendering3 - has the most failures
• ign-rendering4 - surprisingly no failures
• ign-rendering5 - few failures
• main - again, no failures

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https://github.com/osrf/buildfarmer/issues/224