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Votes

0

Found in

2019.3

2019.3.0f6

2020.1

2020.2

Issue ID

1219431

Regression

No

CustomSampler.GetReporter().elapsedNanoseconds returns 0 in code when the first frame takes longer than a second to compute

Profiling

-

Reproduction steps:
1. Open the attached project ("case_1219431-BRep.zip")
2. Open the repro scene ("main")
3. Enter Play Mode and wait for the cubes to load
4. Inspect the GUI on the lower right corner of the Game View

Expected result: Information about loading times can be seen
Actual result: Text fields remain empty (CustomSampler.GetReporter().elapsedNanoseconds returns 0)

Reproducible with: 2019.3.6f1, 2020.1.0b2, 2020.2.0a3
Couldn't test with: 2017.4, 2018.4 (project breaking after downgrade)

  1. Resolution Note (2020.2.X):

    The 0 data reported by Recorder is due to the design decision that sampler.GetRecorder() creates a new recorder.
    This results in the situation where a recorder object created on stack is garbage collected disabled and disposed.
    Basically Update method with usage like sampler.GetRecorder().elapsedNanoSeconds always returns 0 being a new recorder.

    A workaround for this would be to use a member variable to store recorder instance in the class.

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