{"title":"Session details: Lighting and appearance","authors":"Steve Marschner","doi":"10.1145/3253362","DOIUrl":"https://doi.org/10.1145/3253362","url":null,"abstract":"","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120984610","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}
{"title":"Session details: Character animation","authors":"H. Shum","doi":"10.1145/3253359","DOIUrl":"https://doi.org/10.1145/3253359","url":null,"abstract":"","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133799715","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}
{"title":"Session details: 3D acquisition and image based rendering","authors":"M. Gross","doi":"10.1145/3253360","DOIUrl":"https://doi.org/10.1145/3253360","url":null,"abstract":"","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"32 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114396403","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}
{"title":"Session details: Painting and non-photorealistic graphics","authors":"J. P. Lewis","doi":"10.1145/3253369","DOIUrl":"https://doi.org/10.1145/3253369","url":null,"abstract":"","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130285469","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}
Welcome to the SIGGRAPH 2002 Papers Program. It's an exciting collection that pushes the boundaries of our field. Several areas have an increased presence: the numerical simulation of natural phenomena; data- driven synthesis, including texture synthesis from images and motion synthesis from motion-capture data; and image- and video-processing methods.There were 358 submissions and 67 acceptances. About six dual submissions to other conferences were discovered and rejected automatically. The 358 submissions represent a 20% increase over last year.The papers are arranged in their order of presentation, grouped into sessions. Sessions are created after the paper selection process and thus reflect the result of the selection. We take all of the papers that are good enough and then figure out sessions for them. I once heard of a conference in which reviewers give one of three ratings: "Accept," "Reject," and "Accept as Filler." By avoiding the preselection of topics, i hope we can forever avoid that third category.There are several notable changes this year. First and foremost, as the start of a two-year experiment, this year's papers are published as an issue of ACM Transactions on Graphics (TOG). Because TOG is a journal, papers had to be refereed rather than just reviewed. Each submission was either accepted, accepted with minor changes, or rejected. Kurt Akeley's idea, for S1GGRAPH 2000, of only accepting papers "as is" was a great step towards fairness. But I felt that it also let some bad things happen -- papers were rejected because of just a few misplaced words. Letting reviewers require minor changes addresses this issue. The authors made these changes and a referee checked them. If the author felt that the minor changes were not acceptable, s/be was welcome to withdraw the paper. The advantages to this new approach are threefold: papers are double-checked for mistakes; small mistakes or omissions can be fixed; and papers, having been refereed, can be published in a journal, which is important in some academic tenure cases.There are disadvantages too. The refereeing process was rushed and sometimes inconvenient, and different reviewers had different notions of "small changes," despite my best efforts to outline what these were. In retrospect, Kurt's rule of "acceptable as is" has the enormous advantage of being unambiguous? Jessica Hodgins, next year's chair, will have to evaluate this experiment carefully.A second change was in the selection process: the non-committee reviewers were selected by both committee members responsible for a paper instead of just one as in earlier years.A third and final change was that by expanding the technical program to start one day earlier, we have no overlapping sessions. When Jim Kajiya shifted to overlapping sessions, he noted that it was a positive change: no longer was the committee "counting papers" near the end of the selection process and getting tougher about accepting them because "there isn't room
{"title":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","authors":"Tom Appolloni","doi":"10.1145/566570","DOIUrl":"https://doi.org/10.1145/566570","url":null,"abstract":"Welcome to the SIGGRAPH 2002 Papers Program. It's an exciting collection that pushes the boundaries of our field. Several areas have an increased presence: the numerical simulation of natural phenomena; data- driven synthesis, including texture synthesis from images and motion synthesis from motion-capture data; and image- and video-processing methods.There were 358 submissions and 67 acceptances. About six dual submissions to other conferences were discovered and rejected automatically. The 358 submissions represent a 20% increase over last year.The papers are arranged in their order of presentation, grouped into sessions. Sessions are created after the paper selection process and thus reflect the result of the selection. We take all of the papers that are good enough and then figure out sessions for them. I once heard of a conference in which reviewers give one of three ratings: \"Accept,\" \"Reject,\" and \"Accept as Filler.\" By avoiding the preselection of topics, i hope we can forever avoid that third category.There are several notable changes this year. First and foremost, as the start of a two-year experiment, this year's papers are published as an issue of ACM Transactions on Graphics (TOG). Because TOG is a journal, papers had to be refereed rather than just reviewed. Each submission was either accepted, accepted with minor changes, or rejected. Kurt Akeley's idea, for S1GGRAPH 2000, of only accepting papers \"as is\" was a great step towards fairness. But I felt that it also let some bad things happen -- papers were rejected because of just a few misplaced words. Letting reviewers require minor changes addresses this issue. The authors made these changes and a referee checked them. If the author felt that the minor changes were not acceptable, s/be was welcome to withdraw the paper. The advantages to this new approach are threefold: papers are double-checked for mistakes; small mistakes or omissions can be fixed; and papers, having been refereed, can be published in a journal, which is important in some academic tenure cases.There are disadvantages too. The refereeing process was rushed and sometimes inconvenient, and different reviewers had different notions of \"small changes,\" despite my best efforts to outline what these were. In retrospect, Kurt's rule of \"acceptable as is\" has the enormous advantage of being unambiguous? Jessica Hodgins, next year's chair, will have to evaluate this experiment carefully.A second change was in the selection process: the non-committee reviewers were selected by both committee members responsible for a paper instead of just one as in earlier years.A third and final change was that by expanding the technical program to start one day earlier, we have no overlapping sessions. When Jim Kajiya shifted to overlapping sessions, he noted that it was a positive change: no longer was the committee \"counting papers\" near the end of the selection process and getting tougher about accepting them because \"there isn't room","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130843326","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}
In this paper we describe how to simulate geometrically complex, interactive, physically-based, volumetric, dynamic deformation models with negligible main CPU costs. This is achieved using a Dynamic Response Texture, or DyRT, that can be mapped onto any conventional animation as an optional rendering stage using commodity graphics hardware. The DyRT simulation process employs precomputed modal vibration models excited by rigid body motions. We present several examples, with an emphasis on bone-based character animation for interactive applications.
{"title":"DyRT: dynamic response textures for real time deformation simulation with graphics hardware","authors":"Doug L. James, D. Pai","doi":"10.1145/566570.566621","DOIUrl":"https://doi.org/10.1145/566570.566621","url":null,"abstract":"In this paper we describe how to simulate geometrically complex, interactive, physically-based, volumetric, dynamic deformation models with negligible main CPU costs. This is achieved using a Dynamic Response Texture, or DyRT, that can be mapped onto any conventional animation as an optional rendering stage using commodity graphics hardware. The DyRT simulation process employs precomputed modal vibration models excited by rigid body motions. We present several examples, with an emphasis on bone-based character animation for interactive applications.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"6 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":"116786061","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}
This paper introduces an efficient two-pass rendering technique for translucent materials. We decouple the computation of irradianceat the surface from the evaluation of scattering inside the material.This is done by splitting the evaluation into two passes, where the first pass consists of computing the irradiance at selected points on the surface. The second pass uses a rapid hierarchical integration technique to evaluate a diffusion approximation based on the irradiance samples. This approach is substantially faster than previous methods for rendering translucent materials, and it has the advantage that it integrates seamlessly with both scanline rendering and global illumination methods. We show several images and animations from our implementation that demonstrate that the approach is both fast and robust, making it suitable for rendering translucent materials in production.
{"title":"A rapid hierarchical rendering technique for translucent materials","authors":"H. Jensen, Juan Buhler","doi":"10.1145/566570.566619","DOIUrl":"https://doi.org/10.1145/566570.566619","url":null,"abstract":"This paper introduces an efficient two-pass rendering technique for translucent materials. We decouple the computation of irradianceat the surface from the evaluation of scattering inside the material.This is done by splitting the evaluation into two passes, where the first pass consists of computing the irradiance at selected points on the surface. The second pass uses a rapid hierarchical integration technique to evaluate a diffusion approximation based on the irradiance samples. This approach is substantially faster than previous methods for rendering translucent materials, and it has the advantage that it integrates seamlessly with both scanline rendering and global illumination methods. We show several images and animations from our implementation that demonstrate that the approach is both fast and robust, making it suitable for rendering translucent materials in production.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"117 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":"124355654","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}
A new method for the visualization of two-dimensional fluid flow is presented. The method is based on the advection and decay of dye. These processes are simulated by defining each frame of a flow animation as a blend between a warped version of the previous image and a number of background images. For the latter a sequence of filtered white noise images is used: filtered in time and space to remove high frequency components. Because all steps are done using images, the method is named Image Based Flow Visualization (IBFV). With IBFV a wide variety of visualization techniques can be emulated. Flow can be visualized as moving textures with line integral convolution and spot noise. Arrow plots, streamlines, particles, and topological images can be generated by adding extra dye to the image. Unsteady flows, defined on arbitrary meshes, can be handled. IBFV achieves a high performance by using standard features of graphics hardware. Typically fifty frames per second are generated using standard graphics cards on PCs. Finally, IBFV is easy to understand, analyse, and implement.
{"title":"Image based flow visualization","authors":"J. V. Wijk","doi":"10.1145/566570.566646","DOIUrl":"https://doi.org/10.1145/566570.566646","url":null,"abstract":"A new method for the visualization of two-dimensional fluid flow is presented. The method is based on the advection and decay of dye. These processes are simulated by defining each frame of a flow animation as a blend between a warped version of the previous image and a number of background images. For the latter a sequence of filtered white noise images is used: filtered in time and space to remove high frequency components. Because all steps are done using images, the method is named Image Based Flow Visualization (IBFV). With IBFV a wide variety of visualization techniques can be emulated. Flow can be visualized as moving textures with line integral convolution and spot noise. Arrow plots, streamlines, particles, and topological images can be generated by adding extra dye to the image. Unsteady flows, defined on arbitrary meshes, can be handled. IBFV achieves a high performance by using standard features of graphics hardware. Typically fifty frames per second are generated using standard graphics cards on PCs. Finally, IBFV is easy to understand, analyse, and implement.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"25 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":"116862154","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}
Several techniques have been developed to approximate Bidirectional Reflectance Distribution Functions (BRDF) with acceptable quality and performance for realtime applications. The recently published Homomorphic Factorization by McCool et al. is a general approximation approach that can be used with various setups and for different quality requirements.In this paper we propose a new technique based on the Homomorphic Factorization. Instead of approximating the BRDF, our technique factorizes the full lighting computation of an isotropic BRDF in a global illumination scenario. With this method materials in complex lighting situations can be simulated with only two textures by using commonly available computation capabilities of current graphics hardware.The new technique can also be considered as a generalized approach to several environment map prefiltering techniques. Existing prefiltering techniques are usually limited to specific BRDFs or require advanced hardware capabilities like 3D texturing. With the factorization only common 2D textures are required.
{"title":"Homomorphic factorization of BRDF-based lighting computation","authors":"Lutz Latta, A. Kolb","doi":"10.1145/566570.566610","DOIUrl":"https://doi.org/10.1145/566570.566610","url":null,"abstract":"Several techniques have been developed to approximate Bidirectional Reflectance Distribution Functions (BRDF) with acceptable quality and performance for realtime applications. The recently published Homomorphic Factorization by McCool et al. is a general approximation approach that can be used with various setups and for different quality requirements.In this paper we propose a new technique based on the Homomorphic Factorization. Instead of approximating the BRDF, our technique factorizes the full lighting computation of an isotropic BRDF in a global illumination scenario. With this method materials in complex lighting situations can be simulated with only two textures by using commonly available computation capabilities of current graphics hardware.The new technique can also be considered as a generalized approach to several environment map prefiltering techniques. Existing prefiltering techniques are usually limited to specific BRDFs or require advanced hardware capabilities like 3D texturing. With the factorization only common 2D textures are required.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"30 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":"128990638","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}
We present a new method for real-time rendering of objects with complex isotropic BRDFs under distant natural illumination, as specified by an environment map. Our approach is based on spherical frequency space analysis and includes three main contributions. Firstly, we are able to theoretically analyze required sampling rates and resolutions, which have traditionally been determined in an ad-hoc manner. We also introduce a new compact representation, which we call a spherical harmonic reflection map (SHRM), for efficient representation and rendering. Finally, we show how to rapidly prefilter the environment map to compute the SHRM---our frequency domain prefiltering algorithm is generally orders of magnitude faster than previous angular (spatial) domain approaches.
{"title":"Frequency space environment map rendering","authors":"R. Ramamoorthi, P. Hanrahan","doi":"10.1145/566570.566611","DOIUrl":"https://doi.org/10.1145/566570.566611","url":null,"abstract":"We present a new method for real-time rendering of objects with complex isotropic BRDFs under distant natural illumination, as specified by an environment map. Our approach is based on spherical frequency space analysis and includes three main contributions. Firstly, we are able to theoretically analyze required sampling rates and resolutions, which have traditionally been determined in an ad-hoc manner. We also introduce a new compact representation, which we call a spherical harmonic reflection map (SHRM), for efficient representation and rendering. Finally, we show how to rapidly prefilter the environment map to compute the SHRM---our frequency domain prefiltering algorithm is generally orders of magnitude faster than previous angular (spatial) domain approaches.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"24 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":"114145859","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：