Proceedings of the Conference on High-Performance Graphics最新文献

Multi-resolution shared representative filtering for real-time depth completion 实时深度完成的多分辨率共享代表性滤波

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211280

Yu-Ting Wu, Tzu-Mao Li, I-Chao Shen, Hongquan Lin, Yung-Yu Chuang

引用次数: 0

Directed acyclic graph encoding for compressed shadow maps 压缩阴影贴图的有向无环图编码

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211283

L. Scandolo, E. Eisemann

引用次数: 2

Transfer-function-independent acceleration structure for volume rendering in virtual reality 虚拟现实中独立于传递函数的体绘制加速结构

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211279

Balázs Faludi, Norbert Z. Zentai, M. Żelechowski, A. Zam, G. Rauter, M. Griessen, Philippe C. Cattin

{"title":"Transfer-function-independent acceleration structure for volume rendering in virtual reality","authors":"Balázs Faludi, Norbert Z. Zentai, M. Żelechowski, A. Zam, G. Rauter, M. Griessen, Philippe C. Cattin","doi":"10.2312/hpg.20211279","DOIUrl":"https://doi.org/10.2312/hpg.20211279","url":null,"abstract":"Visualizing volumetric medical datasets in a virtual reality environment enhances the sense of scale and has a wide range of applications in diagnostics, simulation, training, and surgical planning. To avoid motion sickness, rendering at the native refresh rate of the head-mounted display is important, and frame drops have to be avoided. Despite these strict requirements and the high computational complexity of direct volume rendering, it is feasible to provide a comfortable experience using volume ray casting on modern hardware. Many implementations use precomputed gradients or illumination to achieve the targeted frame rate, and most rely on acceleration structures, such as distance maps or octrees, to speed up the ray marching shader. With many of these techniques, the opacity of voxels is baked into the precomputed data, requiring a recomputation when the opacity changes. This makes it difficult to implement features that lead to a sudden change in voxel opacity, such as real-time transfer function editing, transparency masking, or toggling the visibility of segmented tissues. In this work, we present an empty space skipping technique using an octree that does not have to be recomputed when the transfer function is changed and performs well even when more complex transfer functions are used. We encode the content of the volume as bitfields in the octree and are able to skip empty areas, even with transfer functions that cannot efficiently be represented as a simple range of voxel values. We show that our approach allows arbitrarily editing of the transfer function in real-time while maintaining the target frame rate of 90 Hz.","PeriodicalId":354787,"journal":{"name":"Proceedings of the Conference on High-Performance Graphics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131205811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Compression and rendering of textured point clouds via sparse coding 通过稀疏编码压缩和渲染纹理点云

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211284

Kersten Schuster, Philip Trettner, Patric Schmitz, Julian Schakib, L. Kobbelt

{"title":"Compression and rendering of textured point clouds via sparse coding","authors":"Kersten Schuster, Philip Trettner, Patric Schmitz, Julian Schakib, L. Kobbelt","doi":"10.2312/hpg.20211284","DOIUrl":"https://doi.org/10.2312/hpg.20211284","url":null,"abstract":"Splat-based rendering techniques produce highly realistic renderings from 3D scan data without prior mesh generation. Mapping high-resolution photographs to the splat primitives enables detailed reproduction of surface appearance. However, in many cases these massive datasets do not fit into GPU memory. In this paper, we present a compression and rendering method that is designed for large textured point cloud datasets. Our goal is to achieve compression ratios that outperform generic texture compression algorithms, while still retaining the ability to efficiently render without prior decompression. To achieve this, we resample the input textures by projecting them onto the splats and create a fixed-size representation that can be approximated by a sparse dictionary coding scheme. Each splat has a variable number of codeword indices and associated weights, which define the final texture as a linear combination during rendering. For further reduction of the memory footprint, we compress geometric attributes by careful clustering and quantization of local neighborhoods. Our approach reduces the memory requirements of textured point clouds by one order of magnitude, while retaining the possibility to efficiently render the compressed data.","PeriodicalId":354787,"journal":{"name":"Proceedings of the Conference on High-Performance Graphics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131935336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Vertex-blend attribute compression 顶点混合属性压缩

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211282

Bastian Kuth, Quirin Meyer

引用次数: 1

Rearchitecting spatiotemporal resampling for production 重新构建用于生产的时空重采样

Proceedings of the Conference on High-Performance Graphics Pub Date : 2021-07-06 DOI: 10.2312/hpg.20211281

Chris Wyman, Alexey Panteleev

引用次数: 13

RTX beyond ray tracing: exploring the use of hardware ray tracing cores for tet-mesh point location RTX超越光线追踪:探索使用硬件光线追踪核心进行网格点定位

Proceedings of the Conference on High-Performance Graphics Pub Date : 2019-07-08 DOI: 10.2312/hpg.20191189

I. Wald, W. Usher, N. Morrical, L. Lediaev, Valerio Pascucci

引用次数: 45

Wide BVH traversal with a short stack 用短堆栈进行宽BVH遍历

Proceedings of the Conference on High-Performance Graphics Pub Date : 2019-07-08 DOI: 10.2312/hpg.20191190

K. Vaidyanathan, Sven Woop, Carsten Benthin

引用次数: 8

Stochastic lightcuts 随机lightcuts

Proceedings of the Conference on High-Performance Graphics Pub Date : 2019-07-08 DOI: 10.2312/hpg.20191192

Cem Yuksel

引用次数: 18

Real-time ray tracing on head-mounted-displays for advanced visualization of sheet metal stamping defects 在头戴式显示器上的实时光线追踪，用于金属板冲压缺陷的高级可视化

Proceedings of the Conference on High-Performance Graphics Pub Date : 2019-07-08 DOI: 10.2312/hpg.20191196

Andreas Dietrich, J. Wurster, E. Kam, T. Gierlinger

引用次数: 0