Falcor 8.0 floods slang warnings

[Hyiker]

Just get my fork upgraded to Falcor 8.0 aligning with commit 9dc819c162b2070335c65060436041690b7937f8. Running Mogwai with PathTracer.py on cornell box scene leads to flooding slang warnings:

...
warning 41016: use of uninitialized variable 'result'
                    path.setDeltaOnlyPath(result.isLobe(LobeType::DeltaReflection) || result.isLobe(LobeType::DeltaTransmission));
...

More than 1000+ lines of resembling logs are produced.

Checked the slang version 2024.1.34 supports slang::CompilerOptionName::DisableWarning api in deed, but it still floods warnings on my computer even if I create a brand new clone from https://github.com/NVIDIAGameWorks/Falcor and build.

I found adding spOverrideDiagnosticSeverity in createSlangCompileRequest could suppress the warning, but it's definitely not a good practice.

[tomas-davidovic]

Thank you for raising this. We are internally aware and are working with the Slang team on cleaning this up a bit. The problem is that Slang has changed the way their (default) initialization works just around the time when we needed to release, so this kinda crept in. Next release should hopefully have things much more settled down and cleaned up.