Simplify super-resolution initialization #4320

Job	Run time
Linux -> Pre-checks	23s
Linux -> GCC-x64, Debug	12m 7s
Linux -> Clang-NO_GLSLANG-x64, Debug	7m 12s
Linux -> Clang-x64, Debug	10m 40s
Linux -> GCC-x64, Release	10m 12s
Linux -> Clang-x64, Release	13m 4s
Linux -> Clang-NO_GLSLANG-NO_HLSL-x64, Release	6m 32s
	1h 0m 10s

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