Title: GPU Volume Rendering with Hierarchical Compression Using VDB Show Chinese title

Title: 基于使用VDB的分层压缩的GPU体积渲染

Abstract: We propose a compression-based approach to GPU rendering of large volumetric data using OpenVDB and NanoVDB. We use OpenVDB to create a lossy, fixed-rate compressed representation of the volume on the host, and use NanoVDB to perform fast, low-overhead, and on-the-fly decompression during rendering. We show that this approach is fast, works well even in a (incoherent) Monte Carlo path tracing context, can significantly reduce the memory requirements of volume rendering, and can be used as an almost drop-in replacement into existing 3D texture-based renderers. Show Chinese abstract

Abstract: 我们提出了一种基于压缩的方法，使用OpenVDB和NanoVDB对大型体积数据进行GPU渲染。 我们使用OpenVDB在主机上创建体积的有损固定速率压缩表示，并使用NanoVDB在渲染期间进行快速、低开销且实时的解压缩。 我们表明，这种方法速度快，在（非一致的）蒙特卡洛路径追踪环境中也能很好地工作，可以显著减少体积渲染的内存需求，并可以几乎直接替换现有的基于3D纹理的渲染器。