Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games最新文献_第8页

Interactive GPU-based octree generation and traversal 基于交互式gpu的八叉树生成和遍历

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159657

Chen Wei, J. Gain, P. Marais

引用次数: 1

Linear compression for spatially-varying BRDFs 空间变化brdf的线性压缩

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159658

S. Braeger, C. Hughes

引用次数: 0

Editing and constraining kinematic approximations of dynamic motion 编辑和约束动态运动的运动学逼近

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159652

Cyrus Rahgoshay, A. Rabbani, Karan Singh, P. Kry

{"title":"Editing and constraining kinematic approximations of dynamic motion","authors":"Cyrus Rahgoshay, A. Rabbani, Karan Singh, P. Kry","doi":"10.1145/2159616.2159652","DOIUrl":"https://doi.org/10.1145/2159616.2159652","url":null,"abstract":"Physical simulation is now a robust and common approach to recreating reality in virtual worlds and is almost universally used in the animation of natural phenomena, ballistic objects, and character accessories like clothing and hair. Despite these great strides, the animation of primary characters continues to be dominated by the kinematic techniques of motion capture and above all traditional keyframing. Two aspects of a primary character in particular, skeletal and facial motion, are often laboriously animated using kinematics. There are perhaps three chief reasons for this. First, kinematics, unencumbered by physics, provides the finest level of control necessary for animators to breathe life and personality into their characters. Second, this control is direct and history-free, in that the authored state of the character, set at any point in time is precisely observed upon playback and its impact on the animation is localized to a neighborhood around that time. Third, animator interaction with the time line is WYSIWYG (what-you-see-is-what-you-get), allowing them to scrub to various points in time and observe the character state without having to playback the entire animation. Secondary dynamics can be overlaid on primarily kinematic character motion to enhance the visceral feel of their characters. But unfortunately compromise the second and third reasons animators rely on pure kinematic control.","PeriodicalId":91160,"journal":{"name":"Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games","volume":"1 1","pages":"206"},"PeriodicalIF":0.0,"publicationDate":"2012-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83071453","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: 0

Multiresolution attributes for tessellated meshes 细分网格的多分辨率属性

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159645

Henry Schäfer, Magdalena Prus, Quirin Meyer, J. Süßmuth, M. Stamminger

{"title":"Multiresolution attributes for tessellated meshes","authors":"Henry Schäfer, Magdalena Prus, Quirin Meyer, J. Süßmuth, M. Stamminger","doi":"10.1145/2159616.2159645","DOIUrl":"https://doi.org/10.1145/2159616.2159645","url":null,"abstract":"We present a novel representation for storing sub-triangle signals, such as colors, normals, or displacements directly with the triangle mesh. Signal samples are stored as guided by hardware-tessellation patterns. Thus, we can directly render from our representation by assigning signal samples to attributes of vertices generated by the hardware tessellator.\u0000 Contrary to texture mapping, our approach does not require any atlas generation, chartification, or uv-unwrapping. Thus, it does not suffer from texture-related artifacts, such as discontinuities across chart boundaries or distortion. Moreover, our approach allows specifying the optimal sampling rate adaptively on a per triangle basis, resulting in significant memory savings for most signal types.\u0000 We propose a signal optimal approach for converting arbitrary signals, including existing assets with textures or mesh colors, into our representation. Further, we provide efficient algorithms for mip-mapping, bi- and tri-linear interpolation directly in our representation. Our approach is optimally suited for displacement mapping: it automatically generates crack-free, view-dependent displacement mapped models enabling continuous level-of-detail.","PeriodicalId":91160,"journal":{"name":"Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games","volume":"142 1","pages":"175-182"},"PeriodicalIF":0.0,"publicationDate":"2012-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927160","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: 10

Realtime volume rendering using precomputed photon mapping 实时体渲染使用预先计算的光子映射

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159663

Yubo Zhang, Z. Dong, K. Ma

引用次数: 1

A reconstruction filter for plausible motion blur 一个重建过滤器为合理的运动模糊

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159639

M. McGuire, P. Hennessy, Michał Bukowski, Brian Osman

引用次数: 33

Ray tracing visualization toolkit 光线追踪可视化工具包

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159628

C. Gribble, J. Fisher, Daniel Eby, E. Quigley, Gideon Ludwig

引用次数: 13

A framework for rendering complex scattering effects on hair 一个用于渲染头发上复杂散射效果的框架

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159635

Xuan Yu, Jason C. Yang, J. Hensley, T. Harada, Jingyi Yu

{"title":"A framework for rendering complex scattering effects on hair","authors":"Xuan Yu, Jason C. Yang, J. Hensley, T. Harada, Jingyi Yu","doi":"10.1145/2159616.2159635","DOIUrl":"https://doi.org/10.1145/2159616.2159635","url":null,"abstract":"The appearance of hair plays a critical role in synthesizing realistic looking human characters. However, due to the high complexity in hair geometry and the scattering nature of hair fibers, rendering hair with photorealistic quality and at interactive speeds remains as an open problem in computer graphics. Previous approaches attempt to simplify the scattering model to only tackle a specific aspect of the scattering effects. In this paper, we present a new approach to simultaneously render complex scattering effects including volumetric shadows, transparency, and antialiasing under a unified framework. Our solution uses a shadow-ray path to produce volumetric self-shadows and an additional view-ray path to produce transparency. To compute and accumulate the contribution of individual hair fibers along each (shadow or view) path, we develop a new GPU-based k-buffer technique that can efficiently locate the K nearest scattering locations and combine them in the correct order. Compared with existing multi-layer based approaches[Kim and Neumann 2001; Yuksel and Keyser 2008; Sintorn and Assarsson 2009], we show that our k-buffer solution can more accurately reproduce the shadowing and transparency effects. Further, we present an anti-aliasing scheme that directly builds upon the k-buffer. We implement all three effects (volumetric shadows, transparency, and anti-aliasing) under a unified rendering pipeline. Experiments on complex hair models demonstrate that our new solution produces near photorealistic hair rendering at very interactive speed.","PeriodicalId":91160,"journal":{"name":"Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games","volume":"114 1","pages":"111-118"},"PeriodicalIF":0.0,"publicationDate":"2012-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89923743","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

4D parametric motion graphs for interactive animation 用于交互动画的4D参数化运动图形

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159633

D. Casas, M. Tejera, Jean-Yves Guillemaut, A. Hilton

引用次数: 37

Animal reality 动物的现实

Proceedings. ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games Pub Date : 2012-03-09 DOI: 10.1145/2159616.2159651

A. Sherstyuk

引用次数: 0