NRI error when running NRDSample

[edrumwri]

Apologies if I should be posting under the NRI repo instead, but it seems like this is the right place. This error happens under commit b520f2 on Ubuntu 24. Since NRDSample is supposed to be the "quick start" for NRD, I'd like to not personally dive into debugging the NRDSample issue just to see how NRD works; hopefully there is something simple I can be pointed to in order to make this work.

Error is below:

Loading scene 'Cubes.gltf'...
Loading texture 'black.png'...
Loading texture 'white.png'...
Loading texture 'checkerboard0.dds'...
Loading texture 'flatnormal.png'...
Loading texture 'scrambling_ranking_128x128_2d_4spp.png'...
Loading texture 'sobol_256_4d.png'...
Loading texture 'T_Brick_Beige_D.dds'...
Loading texture 'T_Brick_Beige_R.dds'...
Loading texture 'T_Brick_Beige_N.dds'...
Loading texture 'T_Brick_Cinder_D.dds'...
Loading texture 'T_Brick_Cinder_R.dds'...
Loading texture 'T_Brick_Cinder_N.dds'...
Loading texture 'T_Brick_Concrete_D.dds'...
Loading texture 'T_Brick_Concrete_R.dds'...
Loading texture 'T_Brick_Concrete_N.dds'...
Loading texture 'T_Brick_Yellow_D.dds'...
Loading texture 'T_Brick_Yellow_R.dds'...
Loading texture 'T_Brick_Yellow_N.dds'...
Loading texture 'T_Tile_White_D.dds'...
Loading texture 'T_Tile_White_R.dds'...
Loading texture 'T_Tile_White_N.dds'...
Loading scene 'ShaderBalls.gltf'...
Loading texture 'T_Tile_White_D.dds'...
Loading texture 'T_Tile_White_R.dds'...
Loading texture 'T_Tile_White_N.dds'...
Loading texture 'white.png'...
Loading texture 'roughness0_metalness1.png'...
Loading texture 'black.png'...
Loading texture 'roughness0_metalness0.png'...
Loading texture 'flat_normal.png'...
Loading texture 'gold.png'...
Loading texture 'gold_mat.png'...
Loading texture 'green.png'...
Loading texture 'T_Brick_Concrete_R.dds'...
Loading texture 'T_Brick_Concrete_N.dds'...
Loading texture 'T_Brick_Yellow_D.dds'...
Loading texture 'T_Brick_Yellow_R.dds'...
Loading texture 'T_Brick_Yellow_N.dds'...
Loading texture 'red.png'...
Loading texture 'roughness1_metalness0.png'...
Loading texture 'T_Brick_Beige_N.dds'...
Loading texture 'T_Concrete_Shimizu_D.dds'...
Loading texture 'T_Concrete_Shimizu_R.dds'...
Loading texture 'T_Concrete_Shimizu_N.dds'...
nri::ERROR (SwapChainVK.hpp:128) - VK::NVIDIA GeForce RTX 4090 - Create: swapChainDesc.textureNum is out of [3, 8] range

[dzhdanNV]

NRD sample uses pretty standard swapChainDesc.textureNum = SWAP_CHAIN_TEXTURE_NUM; (2).

While your Linux setup has [3; 8] limitations. This message comes from this code in NRI:

        bool isTextureNumValid = textureNum >= sc.surfaceCapabilities.minImageCount && (textureNum <= sc.surfaceCapabilities.maxImageCount || sc.surfaceCapabilities.maxImageCount == 0);
        RETURN_ON_FAILURE(&m_Device, isTextureNumValid, Result::INVALID_ARGUMENT, "swapChainDesc.textureNum is out of [%u, %u] range", sc.surfaceCapabilities.minImageCount,
            sc.surfaceCapabilities.maxImageCount);

Solution: change SWAP_CHAIN_TEXTURE_NUM to 3.