Proceedings of the 2007 symposium on Interactive 3D graphics and games最新文献_第2页

Interactive motion correction and object manipulation 交互式运动校正和对象操作

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230124

Ari Shapiro, Marcelo Kallmann, P. Faloutsos

引用次数: 6

Flow simulation with locally-refined LBM 局部细化LBM的流动模拟

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230132

Ye Zhao, Feng Qiu, Zhe Fan, A. Kaufman

{"title":"Flow simulation with locally-refined LBM","authors":"Ye Zhao, Feng Qiu, Zhe Fan, A. Kaufman","doi":"10.1145/1230100.1230132","DOIUrl":"https://doi.org/10.1145/1230100.1230132","url":null,"abstract":"We simulate 3D fluid flow by a locally-refined lattice Boltzmann method (LBM) on graphics hardware. A low resolution LBM simulation running on a coarse grid models global flow behavior of the entire domain with low consumption of computational resources. For regions of interest where small visual details are desired, LBM simulations are performed on fine grids, which are separate grids superposed on the coarse one. The flow properties on boundaries of the fine grids are determined by the global simulation on the coarse grid. Thus, the locally refined fine-grid simulations follow the global fluid behavior, and model the desired small-scale and turbulent flow motion with their denser numerical discretization. A fine grid can be initiated and terminated at any time while the global simulation is running. It can also move inside the domain with a moving object to capture small-scale vortices caused by the object. Besides the performance improvement due to the adaptive simulation, the locally-refined LBM is suitable for acceleration on contemporary graphics hardware (GPU), since it involves only local and linear computations. Therefore, our approach achieves fast and adaptive 3D flow simulation for computer games and other interactive applications.","PeriodicalId":140639,"journal":{"name":"Proceedings of the 2007 symposium on Interactive 3D graphics and games","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128914097","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: 26

Ambient aperture lighting 环境光圈照明

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230111

Christopher Oat, P. Sander

引用次数: 34

Interactive k-d tree GPU raytracing 交互式k-d树GPU光线追踪

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230129

D. Horn, J. Sugerman, M. Houston, P. Hanrahan

{"title":"Interactive k-d tree GPU raytracing","authors":"D. Horn, J. Sugerman, M. Houston, P. Hanrahan","doi":"10.1145/1230100.1230129","DOIUrl":"https://doi.org/10.1145/1230100.1230129","url":null,"abstract":"Over the past few years, the powerful computation rates and high memory bandwidth of GPUs have attracted efforts to run raytracing on GPUs. Our work extends Foley et al.'s GPU k-d tree research. We port their kd-restart algorithm from multi-pass, using CPU load balancing, to single pass, using current GPUs' branching and looping abilities. We introduce three optimizations: a packetized formulation, a technique for restarting partially down the tree instead of at the root, and a small, fixed-size stack that is checked before resorting to restart. Our optimized implementation achieves 15 - 18 million primary rays per second and 16 - 27 million shadow rays per second on our test scenes. Our system also takes advantage of GPUs' strengths at rasterization and shading to offer a mode where rasterization replaces eye ray scene intersection, and primary hits and local shading are produced with standard Direct3D code. For 1024x1024 renderings of our scenes with shadows and Phong shading, we achieve 12-18 frames per second. Finally, we investigate the efficiency of our implementation relative to the computational resources of our GPUs and also compare it against conventional CPUs and the Cell processor, which both have been shown to raytrace well.","PeriodicalId":140639,"journal":{"name":"Proceedings of the 2007 symposium on Interactive 3D graphics and games","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126523532","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: 258

Geometry engine optimization: cache friendly compressed representation of geometry 几何引擎优化:缓存友好的几何压缩表示

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230102

J. Chhugani, Subodh Kumar

引用次数: 20

Example-based model synthesis 基于实例的模型综合

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230119

Paul C. Merrell

引用次数: 111

Multi-grained level of detail using a hierarchical seamless texture atlas 使用分层无缝纹理图集的多粒度细节级别

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230127

K. Niski, Budirijanto Purnomo, J. Cohen

引用次数: 17

Real-time procedural volumetric fire 实时程序体积射击

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230131

A. R. Fuller, Harinarayan Krishnan, Karim Mahrous, B. Hamann, K. Joy

{"title":"Real-time procedural volumetric fire","authors":"A. R. Fuller, Harinarayan Krishnan, Karim Mahrous, B. Hamann, K. Joy","doi":"10.1145/1230100.1230131","DOIUrl":"https://doi.org/10.1145/1230100.1230131","url":null,"abstract":"We present a method for generating procedural volumetric fire in real time. By combining curve-based volumetric free-form deformation, hardware-accelerated volumetric rendering and Improved Perlin Noise or M-Noise we are able to render a vibrant and uniquely animated volumetric fire that supports bi-directional environmental macro-level interactivity. Our system is easily customizable by content artists. The fire is animated both on the macro and micro levels. Macro changes are controlled either by a prescripted sequence of movements, or by a realistic particle simulation that takes into account movement, wind, high-energy particle dispersion and thermal buoyancy. Micro fire effects such as individual flame shape, location, and flicker are generated in a pixel shader using three- to four-dimensional Improved Perlin Noise or M-Noise (depending on hardware limitations and performance requirements). Our method supports efficient collision detection, which, when combined with a sufficiently intelligent particle simulation, enables real-time bi-directional interaction between the fire and its environment. The result is a three-dimensional procedural fire that is easily designed and animated by content artists, supports dynamic interaction, and can be rendered in real time.","PeriodicalId":140639,"journal":{"name":"Proceedings of the 2007 symposium on Interactive 3D graphics and games","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128824399","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: 35

Efficient histogram generation using scattering on GPUs 高效的直方图生成使用gpu散射

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230105

T. Scheuermann, J. Hensley

引用次数: 106

Rendering from compressed high dynamic range textures on programmable graphics hardware 在可编程图形硬件上从压缩的高动态范围纹理渲染

Proceedings of the 2007 symposium on Interactive 3D graphics and games Pub Date : 2007-04-30 DOI: 10.1145/1230100.1230103

Lvdi Wang, Xi Wang, Peter-Pike J. Sloan, Li-Yi Wei, Xin Tong, B. Guo

{"title":"Rendering from compressed high dynamic range textures on programmable graphics hardware","authors":"Lvdi Wang, Xi Wang, Peter-Pike J. Sloan, Li-Yi Wei, Xin Tong, B. Guo","doi":"10.1145/1230100.1230103","DOIUrl":"https://doi.org/10.1145/1230100.1230103","url":null,"abstract":"High dynamic range (HDR) images are increasingly employed in games and interactive applications for accurate rendering and illumination. One disadvantage of HDR images is their large data size; unfortunately, even though solutions have been proposed for future hardware, commodity graphics hardware today does not provide any native compression for HDR textures. In this paper, we perform extensive study of possible methods for supporting compressed HDR textures on commodity graphics hardware. A desirable solution must be implementable on DX9 generation hardware, as well as meet the following requirements. First, the data size should be small and the reconstruction quality must be good. Second, the decompression must be efficient; in particular, bilinear/trilinear/anisotropic texture filtering ought to be performed via native texture hardware instead of custom pixel shader filtering. We present a solution that optimally meets these requirements. Our basic idea is to convert a HDR texture to a custom LUVW space followed by an encoding into a pair of 8-bit DXT textures. Since DXT format is supported on modern commodity graphics hardware, our approach has wide applicability. Our compression ratio is 3:1 for FP16 inputs, allowing applications to store 3 times the number of HDR texels in the same memory footprint. Our decompressor is efficient and can be implemented as a short pixel program. We leverage existing texturing hardware for fast decompression and native texture filtering, allowing HDR textures to be utilized just like traditional 8-bit DXT textures. Our reduced data size has a further advantage: it is even faster than rendering from uncompressed HDR textures due to our reduced texture memory access. Given the quality and efficiency, we believe our approach suitable for games and interactive applications.","PeriodicalId":140639,"journal":{"name":"Proceedings of the 2007 symposium on Interactive 3D graphics and games","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128892953","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: 21