Proceedings of the 29th annual conference on Computer graphics and interactive techniques最新文献_第3页

Interactive motion generation from examples 交互式运动生成的例子

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566606

Okan Arikan, D.A. Forsyth

引用次数: 700

Graphical modeling and animation of ductile fracture 韧性断裂的图形建模与动画

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566579

James F. O'Brien, Adam W. Bargteil, J. Hodgins

引用次数: 103

Ray tracing on programmable graphics hardware 可编程图形硬件上的光线追踪

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566640

Timothy J. Purcell, I. Buck, W. Mark, P. Hanrahan

{"title":"Ray tracing on programmable graphics hardware","authors":"Timothy J. Purcell, I. Buck, W. Mark, P. Hanrahan","doi":"10.1145/566570.566640","DOIUrl":"https://doi.org/10.1145/566570.566640","url":null,"abstract":"Recently a breakthrough has occurred in graphics hardware: fixed function pipelines have been replaced with programmable vertex and fragment processors. In the near future, the graphics pipeline is likely to evolve into a general programmable stream processor capable of more than simply feed-forward triangle rendering.In this paper, we evaluate these trends in programmability of the graphics pipeline and explain how ray tracing can be mapped to graphics hardware. Using our simulator, we analyze the performance of a ray casting implementation on next generation programmable graphics hardware. In addition, we compare the performance difference between non-branching programmable hardware using a multipass implementation and an architecture that supports branching. We also show how this approach is applicable to other ray tracing algorithms such as Whitted ray tracing, path tracing, and hybrid rendering algorithms. Finally, we demonstrate that ray tracing on graphics hardware could prove to be faster than CPU based implementations as well as competitive with traditional hardware accelerated feed-forward triangle rendering.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124170389","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

Improving noise 改善噪声

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566636

K. Perlin

引用次数: 612

Level set surface editing operators 水平集表面编辑操作符

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566585

K. Museth, D. Breen, R. Whitaker, A. Barr

{"title":"Level set surface editing operators","authors":"K. Museth, D. Breen, R. Whitaker, A. Barr","doi":"10.1145/566570.566585","DOIUrl":"https://doi.org/10.1145/566570.566585","url":null,"abstract":"We present a level set framework for implementing editing operators for surfaces. Level set models are deformable implicit surfaces where the deformation of the surface is controlled by a speed function in the level set partial differential equation. In this paper we define a collection of speed functions that produce a set of surface editing operators. The speed functions describe the velocity at each point on the evolving surface in the direction of the surface normal. All of the information needed to deform a surface is encapsulated in the speed function, providing a simple, unified computational framework. The user combines pre-defined building blocks to create the desired speed function. The surface editing operators are quickly computed and may be applied both regionally and globally. The level set framework offers several advantages. 1) By construction, self-intersection cannot occur, which guarantees the generation of physically-realizable, simple, closed surfaces. 2) Level set models easily change topological genus, and 3) are free of the edge connectivity and mesh quality problems associated with mesh models. We present five examples of surface editing operators: blending, smoothing, sharpening, openings/closings and embossing. We demonstrate their effectiveness on several scanned objects and scan-converted models.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130387597","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: 241

Synthesis of complex dynamic character motion from simple animations 从简单动画合成复杂的动态角色运动

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566596

Karen Liu, Zoran Popovi´c

引用次数: 294

A procedural approach to authoring solid models 一个程序的方法来创作实体模型

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566581

B. Cutler, Julie Dorsey, L. McMillan, Matthias Müller, Robert Jagnow

引用次数: 125

Linear combination of transformations 变换的线性组合

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566592

M. Alexa

{"title":"Linear combination of transformations","authors":"M. Alexa","doi":"10.1145/566570.566592","DOIUrl":"https://doi.org/10.1145/566570.566592","url":null,"abstract":"Geometric transformations are most commonly represented as square matrices in computer graphics. Following simple geometric arguments we derive a natural and geometrically meaningful definition of scalar multiples and a commutative addition of transformations based on the matrix representation, given that the matrices have no negative real eigenvalues. Together, these operations allow the linear combination of transformations. This provides the ability to create weighted combination of transformations, interpolate between transformations, and to construct or use arbitrary transformations in a structure similar to a basis of a vector space. These basic techniques are useful for synthesis and analysis of motions or animations. Animations through a set of key transformations are generated using standard techniques such as subdivision curves. For analysis and progressive compression a PCA can be applied to sequences of transformations. We describe an implementation of the techniques that enables an easy-to-use and transparent way of dealing with geometric transformations in graphics software. We compare and relate our approach to other techniques such as matrix decomposition and quaternion interpolation.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129350186","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: 257

Structural modeling of flames for a production environment 生产环境火焰的结构建模

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566644

Arnauld Lamorlette, N. Foster

引用次数: 146

Motion capture assisted animation: texturing and synthesis 动作捕捉辅助动画:纹理和合成

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566608

Katherine Pullen, C. Bregler

引用次数: 386