'std::length_error' when doing cmake --build build -j

[skincrawl]

Hi!

I'm having trouble building this on Arch Linux with an RX 6700 XT. I am following the instructions on Github.

I cloned the repo, did git submodule update and did

cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DJAVA_PROJECT_ROOT_DIR=.. -DUSE_AMD=ON -DMCVR_ENABLE_NRD=ON -DCMAKE_POLICY_VERSION_MINIMUM=3.5

Without the last argument that I added it gives this error:

CMake Error at extern/FidelityFX-SDK/sdk/tools/ffx_shader_compiler/libs/tiny-process-library/CMakeLists.txt:23 (cmake_minimum_required):
  Compatibility with CMake < 3.5 has been removed from CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.

So that's why I added that. Then it says:

-- Build files have been written to: /home/user/.local/share/ModrinthApp/profiles/AUR_Modrinth/radiance/MCVR/build

I had put MCVR in the radiance directory, so that's why -DJAVA_PROJECT_ROOT_DIR=..

Then I did cmake --build build -j as per the instructions but every time I get:

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create

It fails at slightly different percentages, typically 76-79%. I have 32 GB RAM and a 6-core CPU, so I don't think hardware should be the issue.

Things I've tried:

I tried redoing everything with MCVR in my home directory, in case long paths were causing strings to be too long, but that didn't help.

I tried turning off FSR2 and 3, OF and FI in extern/FidelityFX-SDK/sdk/src/backends/vk/CMakeLists.txt, but it fails the same way regardless. You can turn them off in CMakeLists higher up in the project but for some reason it still goes through the permutations. And since NRD=ON is in the configuration command, it completely skips the settings in the top-level CMakeLists file. But since it fails even when you get it to skip a lot it doesn't really matter.

And of course always rm -rf build and redo the cmake -S . -B build command after making changes.

Sorry if I'm being a total noob, I'm not used to cmake build stuff. I can handle following instructions as long as there aren't random errors like this. D:

[supertiefighter]

Same issue here.
Running cmake --build build outputs the following:

[  1%] Built target tiny-process-library
[  2%] Built target FidelityFX_SC
[  2%] Generating ../shaders/vk/ffx_denoiser_filter_soft_shadows_0_pass_16bit_permutations.h
ffx_denoiser_filter_soft_shadows_0_pass.glsl
terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create
make[2]: *** [extern/FidelityFX-SDK/ffx-api/sdk/src/backends/vk/CMakeFiles/ffx_shader_permutations_vk.dir/build.make:430: extern/FidelityFX-SDK/ffx-api/sdk/src/backends/shaders/vk/ffx_denoiser_filter_soft_shadows_0_pass_16bit_permutations.h] Aborted (core dumped)
make[1]: *** [CMakeFiles/Makefile2:1340: extern/FidelityFX-SDK/ffx-api/sdk/src/backends/vk/CMakeFiles/ffx_shader_permutations_vk.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

Arch Linux, RX 9070, Ryzen 5 3600

[Orthestral]

After a lot of searching and testing, I've found that the problem is in the FidelityFX shader compiler. Specifically, any argument passing an array such as {0,1} will cause this error.

Replacing the arrays with 0 gets past that error but causes the build to fail later with these errors for every argument.
/home/xxx/Downloads/MCVR/extern/FidelityFX-SDK/sdk/src/backends/shared/blob_accessors/ffx_frameinterpolation_shaderblobs.cpp:84:9: error: 'ffx_frameinterpolation_inpainting_pass_PermutationKey' {aka 'union ffx_frameinterpolation_inpainting_pass_PermutationKey'} has no member named 'FFX_FRAMEINTERPOLATION_OPTION_JITTER_MOTION_VECTORS'

[skincrawl]

Oh, I thought you had to do the build part of the instructions but I guess that was optional. I could've skipped that all along. T_T However, everything is pretty dark despite it being noon. And it crashes immediately if I pause. :S

That's looking straight at the sun and it's still dark as heck.