Method GetTextureGroupSampler

Source/Engine/Streaming/Streaming.cpp:294–330

}

GPUSampler* Streaming::GetTextureGroupSampler(int32 index)
{
    GPUSampler* sampler = nullptr;
    if (index >= 0 && index < TextureGroupSamplers.Count())
    {
        // Sampler from texture group options
        auto& group = TextureGroups[index];
        auto desc = GPUSamplerDescription::New(group.SamplerFilter);
        desc.MaxAnisotropy = group.MaxAnisotropy;
        sampler = TextureGroupSamplers[index];
        if (!sampler)
        {
            sampler = GPUSampler::New();
#if GPU_ENABLE_RESOURCE_NAMING
            sampler->SetName(group.Name);
#endif
            sampler->Init(desc);
            TextureGroupSamplers[index] = sampler;
        }
        if (sampler->GetDescription().Filter != desc.Filter || sampler->GetDescription().MaxAnisotropy != desc.MaxAnisotropy)
            sampler->Init(desc);
    }
    if (!sampler)
    {
        // Default sampler to prevent issue
        if (!FallbackSampler)
        {
            FallbackSampler = GPUSampler::New();
#if GPU_ENABLE_RESOURCE_NAMING
            FallbackSampler->SetName(TEXT("FallbackSampler"));
#endif
            FallbackSampler->Init(GPUSamplerDescription::New(GPUSamplerFilter::Trilinear));
        }
        sampler = FallbackSampler;
    }
    return sampler;
}