Proceedings of the 16th annual conference on Computer graphics and interactive techniques最新文献_第2页

Metamouse: specifying graphical procedures by example 元鼠标:通过示例指定图形化过程

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74346

D. Maulsby, I. Witten, Kenneth A. Kittlitz

引用次数: 122

Separable image warping with spatial lookup tables 具有空间查找表的可分离图像变形

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74371

G. Wolberg, T. Boult

引用次数: 54

Curve-to-curve associations in spline-based inbetweening and sweeping 基于样条的中间和扫描中的曲线到曲线关联

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74350

R. Bartels, Ronald T. Hardock

引用次数: 5

Scan line display of algebraic surfaces 代数曲面的扫描线显示

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74348

T. Sederberg, A. Zundel

引用次数: 48

Ray tracing deterministic 3-D fractals 光线追踪确定性三维分形

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74363

J. Hart, D. Sandin, L. Kauffman

引用次数: 136

Combinatorial analysis of ramified patterns and computer imagery of trees 树的分枝图案和计算机图像的组合分析

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74336

X. Viennot, Georges Eyrolles, N. Janey, Didier Arquds

{"title":"Combinatorial analysis of ramified patterns and computer imagery of trees","authors":"X. Viennot, Georges Eyrolles, N. Janey, Didier Arquds","doi":"10.1145/74333.74336","DOIUrl":"https://doi.org/10.1145/74333.74336","url":null,"abstract":"Herein is presented a new procedural method for generating images of trees. Many other algorithms have already been proposed in the last few years focusing on particle systems, fractals, graftals and L-systems or realistic botanical models. Usually the final visual aspect of the tree depends on the development process leading to this form. Our approach differs from all the previous ones. We begin by defining a certain \"measure\" of the form of a tree or a branching pattern. This is done by introducing the new concept of ramification matrix of a tree. Then we give an algorithm for generating a random tree having as ramification matrix a given arbitrary stochastic triangular matrix. The geometry of the tree is defined from the combinatorial parameters implied in the analysis of the forms of trees. We obtain a method with powerful control of the final form, simple enough to produce quick designs of trees without loosing in the variety and rendering of the images. We also introduce a new rapid drawing of the leaves. The underlying combinatorics constitute a refinment of some work introduced in hydrogeology in the morphological study of river networks. The concept of ramification matrix has been used very recently in physics in the study of fractal ramified patterns.","PeriodicalId":422743,"journal":{"name":"Proceedings of the 16th annual conference on Computer graphics and interactive techniques","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121446894","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: 109

Algorithms for solid noise synthesis 固体噪声合成算法

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74360

J. P. Lewis

{"title":"Algorithms for solid noise synthesis","authors":"J. P. Lewis","doi":"10.1145/74333.74360","DOIUrl":"https://doi.org/10.1145/74333.74360","url":null,"abstract":"A solid noise is a function that defines a random value at each point in space. Solid noises have immediate and powerful applications in surface texturing, stochastic modeling, and the animation of natural phenomena.Existing solid noise synthesis algorithms are surveyed and two new algorithms are presented. The first uses Wiener interpolation to interpolate random values on a discrete lattice. The second is an efficient sparse convolution algorithm. Both algorithms are developed for model-directed synthesis, in which sampling and construction of the noise occur only at points where the noise value is required, rather than over a regularly sampled region of space. The paper attempts to present the rationale for the selection of these particular algorithms.The new algorithms have advantages of efficiency, improved control over the noise power spectrum, and the absence of artifacts. The convolution algorithm additionally allows quality to be traded for efficiency without introducing obvious deterministic effects. The algorithms are particularly suitable for applications where high-quality solid noises are required. Several sample applications in stochastic modeling and solid texturing are shown.","PeriodicalId":422743,"journal":{"name":"Proceedings of the 16th annual conference on Computer graphics and interactive techniques","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124635593","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: 226

Real-time rendering of trimmed surfaces 修剪表面的实时渲染

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74344

A. Rockwood, Kurt Heaton, Tom Davis

引用次数: 182

Hypertexture Hypertexture

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74359

K. Perlin, Eric M. Hoffert

引用次数: 251

A characterization of ten rasterization techniques 十种光栅化技术的特性

Proceedings of the 16th annual conference on Computer graphics and interactive techniques Pub Date : 1989-07-01 DOI: 10.1145/74333.74370

N. Gharachorloo, S. Gupta, R. Sproull, I. Sutherland

引用次数: 47