Fix point cloud material syntax error

[iche033]

Signed-off-by: Ian Chen [email protected]

🦟 Bug fix

Summary

Without this fix, you would see an entry in ~/.ignition/rendering/ogre2.log:

Compiler error: invalid parameters in point_cloud_point.material(34): incorrect type specified; only variants of int, uint, float, double, and bool allowed

Point cloud visualization still worked though. It could be just that the initial values are not set correctly.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

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[codecov]

Codecov Report

Merging #433 (60ef35d) into main (34d1d0a) will increase coverage by 0.03%.
The diff coverage is 81.81%.

❗ Current head 60ef35d differs from pull request most recent head 2707f18. Consider uploading reports for the commit 2707f18 to get more accurate results

@@            Coverage Diff             @@
##             main     #433      +/-   ##
==========================================
+ Coverage   53.46%   53.49%   +0.03%     
==========================================
  Files         192      192              
  Lines       19536    19560      +24     
==========================================
+ Hits        10444    10464      +20     
- Misses       9092     9096       +4     

Impacted Files	Coverage Δ
ogre2/src/Ogre2Heightmap.cc	0.00% <ø> (ø)
ogre2/src/Ogre2SegmentationMaterialSwitcher.cc	61.22% <40.00%> (-1.55%)	⬇️
ogre2/src/Ogre2RenderEngine.cc	79.56% <60.00%> (-0.25%)	⬇️
ogre2/src/Ogre2DepthCamera.cc	87.30% <100.00%> (+0.17%)	⬆️
ogre2/src/Ogre2RayQuery.cc	38.70% <100.00%> (-0.69%)	⬇️
ogre2/src/Ogre2RenderTarget.cc	86.05% <100.00%> (+0.20%)	⬆️
ogre2/src/Ogre2Scene.cc	74.34% <100.00%> (+0.08%)	⬆️
...e/ignition/rendering/base/BaseGaussianNoisePass.hh	100.00% <0.00%> (+3.33%)	⬆️

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