1. { { , DXGI_FORMAT_R32G32B32_FLOAT, , , D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, }, { , DXGI_FORMAT_R32G32B32_FLOAT, , , D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, }, { , DXGI_FORMAT_R32G32B32_FLOAT, , , D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DA