Method RenderSky

SampleFramework11/v1.01/Graphics/Skybox.cpp:305–379

}

void Skybox::RenderSky(ID3D11DeviceContext* context,
                       Float3 sunDirection,
                       Float3 groundAlbedo,
                       Float3 sunColor,
                       float sunSize,
                       float turbidity,
                       const Float4x4& view,
                       const Float4x4& projection,
                       Float3 scale)
{
    PIXEvent pixEvent(L"Skybox Render Sky");

    // Update the cache, if necessary
    skyCache.Init(sunDirection, groundAlbedo, turbidity);

    if(skyCache.CubeMap == nullptr)
    {
        const uint64 CubeMapRes = 128;
        std::vector<Float4> texels;
        texels.resize(CubeMapRes * CubeMapRes * 6);

        for(uint64 s = 0; s < 6; ++s)
        {
            for(uint64 y = 0; y < CubeMapRes; ++y)
            {
                for(uint64 x = 0; x < CubeMapRes; ++x)
                {
                    Float3 dir = MapXYSToDirection(x, y, s, CubeMapRes, CubeMapRes);
                    Float3 radiance = SampleSky(skyCache, dir);

                    uint64 idx = (s * CubeMapRes * CubeMapRes) + (y * CubeMapRes) + x;
                    texels[idx] = Float4(radiance, 1.0f);
                }
            }
        }

        D3D11_TEXTURE2D_DESC desc;
        desc.Width = uint32(CubeMapRes);
        desc.Height = uint32(CubeMapRes);
        desc.ArraySize = 6;
        desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
        desc.CPUAccessFlags = 0;
        desc.Format = DXGI_FORMAT_R32G32B32A32_FLOAT;
        desc.MipLevels = 1;
        desc.MiscFlags = D3D11_RESOURCE_MISC_TEXTURECUBE;
        desc.SampleDesc.Count = 1;
        desc.SampleDesc.Quality = 0;
        desc.Usage = D3D11_USAGE_IMMUTABLE;

        D3D11_SUBRESOURCE_DATA resData[6];
        for(uint64 i = 0; i < 6; ++i)
        {
            resData[i].pSysMem = &texels[i * CubeMapRes * CubeMapRes];
            resData[i].SysMemPitch = sizeof(texels[0]) * CubeMapRes;
            resData[i].SysMemSlicePitch = 0;
        }

        ID3D11DevicePtr device;