fallback: tex3d update #3281

Job	Run time
macOS / release / homebrew-clang	6m 10s
macOS / debug / homebrew-clang	4m 55s
macOS / release / system-clang	4m 37s
Windows / release / msvc	24m 53s
macOS / debug / system-clang	4m 37s
Windows / release / clang-cl	20m 16s
Windows / release / llvm	24m 27s
Windows / debug / msvc	21m 17s
Windows / debug / clang-cl	19m 34s
Windows / debug / llvm	25m 5s
	2h 35m 51s

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