Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games最新文献_第9页

Tabletop Ensemble: touch-enabled virtual percussion instruments 桌面合奏:触控虚拟打击乐器

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159618

Zhimin Ren, Ravish Mehra, Jason Coposky, M. Lin

{"title":"Tabletop Ensemble: touch-enabled virtual percussion instruments","authors":"Zhimin Ren, Ravish Mehra, Jason Coposky, M. Lin","doi":"10.1145/2159616.2159618","DOIUrl":"https://doi.org/10.1145/2159616.2159618","url":null,"abstract":"We present an interactive virtual percussion instrument system, Tabletop Ensemble, that can be used by a group of collaborative users simultaneously to emulate playing music in real world while providing them with flexibility of virtual simulations. An optical multi-touch tabletop serves as the input device. A novel touch handling algorithm for such devices is presented to translate users' interactions into percussive control signals appropriate for music playing. These signals activate the proposed sound simulation system for generating realistic user-controlled musical sounds. A fast physically-based sound synthesis technique, modal synthesis, is adopted to enable users to directly produce rich, varying musical tones, as they would with the real percussion instruments. In addition, we propose a simple coupling scheme for modulating the synthesized sounds by an accurate numerical acoustic simulator to create believable acoustic effects due to cavity in music instruments. This paradigm allows creating new virtual percussion instruments of various materials, shapes, and sizes with little overhead. We believe such an interactive, multi-modal system would offer capabilities for expressive music playing, rapid prototyping of virtual instruments, and active exploration of sound effects determined by various physical parameters in a classroom, museum, or other educational settings. Virtual xylophones and drums with various physics properties are shown in the presented system.","PeriodicalId":91160,"journal":{"name":"Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games","volume":"40 1","pages":"7-14"},"PeriodicalIF":0.0,"publicationDate":"2012-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85333829","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: 19

Efficient pixel-accurate rendering of curved surfaces 有效的像素精确曲面渲染

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159644

Young In Yeo, Lihan Bin, J. Peters

引用次数: 23

Real-time bidirectional path tracing via rasterization 实时双向路径跟踪通过光栅化

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159647

Yusuke Tokuyoshi, Shinji Ogaki

引用次数: 17

Hardware accelerated construction of SAH-based bounding volume hierarchies for interactive ray tracing 硬件加速了基于sah的边界体层次结构的构建，用于交互式光线跟踪

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159655

Michael J. Doyle, Colin Fowler, M. Manzke

引用次数: 3

Decoupled deferred shading for hardware rasterization 为硬件栅格化解耦延迟着色

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159640

Gabor Liktor, C. Dachsbacher

引用次数: 52

Texture compression using wavelet decomposition: a preview 纹理压缩使用小波分解:预览

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159664

P. Mavridis, Georgios Papaioannou

引用次数: 3

Dynamic eye convergence for head-mounted displays improves user performance in virtual environments 头戴式显示器的动态眼收敛提高了用户在虚拟环境中的性能

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159620

A. Sherstyuk, Arindam Dey, C. Sandor, A. State

引用次数: 12

Real-time rough refraction via LEAN mapping and Gaussian sum reduction 实时粗糙折射通过精益映射和高斯和减少

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159662

Zeng Dai, Chris Wyman

引用次数: 3

Delta radiance transfer δ辐射转移

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159648

B. Loos, D. Nowrouzezahrai, Wojciech Jarosz, Peter-Pike J. Sloan

{"title":"Delta radiance transfer","authors":"B. Loos, D. Nowrouzezahrai, Wojciech Jarosz, Peter-Pike J. Sloan","doi":"10.1145/2159616.2159648","DOIUrl":"https://doi.org/10.1145/2159616.2159648","url":null,"abstract":"Modular Radiance Transfer (MRT) is a recent technique for computing approximate direct-to-indirect transport. Scenes are dynamically constructed by warping and connecting simple shapes and compact transport operators are only precomputed on these simple shapes. MRT ignores fine-scale transport from \"clutter\" objects inside the scene, and computes light transport with reduced dimensional operators, which allows extremely high performance but can lead to significant approximation error. We present several techniques to alleviate this limitation, allowing the light transport from clutter in a scene to be accounted for. We derive additional low-rank delta operators to compensate for these missing light transport paths by modeling indirect shadows and interreflections from, and onto, clutter objects in the scene. We retain MRT's scene-independent precomputation and augment its scene-dependent initialization with clutter transport generation, resulting in increased accuracy without a performance penalty. Our implementation is simple, requiring a few small matrix-vector multiplications that generate a delta lightmap added to MRT's output, and does not adversely affect the performance benefits of the overall algorithm.","PeriodicalId":91160,"journal":{"name":"Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games","volume":"1 1","pages":"191-196"},"PeriodicalIF":0.0,"publicationDate":"2012-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89756342","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: 14

Lossless compression of variable-precision floating-point buffers on GPUs gpu上可变精度浮点缓冲区的无损压缩

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159624

Jeff Pool, A. Lastra, Montek Singh

引用次数: 16