WebGL matrix performance fix

[kubapelc]

Fixes #5070 by passing float32 matrices to WebGL instead of float64. Note that the performance degradation only seemed to affect Chrome, not Firefox. Updates relevant unit & render tests.

[kubapelc]

It would be nice to also have some hard perf numbers for this from a benchmark. I will see if there is a benchmark that can catch this and try to post some numbers tomorrow.

[ibesora]

Nice work and quick fix!
Is there anything we should be wary of by going back to 32-bit matrices? What was the rationale on changing those to 64?

[HarelM]

Added a small question around object creation...
Looks good otherwise.

[kubapelc]

Firefox benchmark:

Chrome:

It seems that the float32 fix works, but there is still a performance regression somewhere.

[HarelM]

Codecov is not running on PRs lately for somereason, I'll see if I can make it work again.
Otherwise I left a few minor comments.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.80%. Comparing base (17f04d7) to head (010b367).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5072      +/-   ##
==========================================
- Coverage   91.81%   91.80%   -0.02%     
==========================================
  Files         279      279              
  Lines       38332    38340       +8     
  Branches     6698     6698              
==========================================
+ Hits        35195    35197       +2     
- Misses       3005     3009       +4     
- Partials      132      134       +2     

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[HarelM]

THANKS!