Stochastic sampling in computer graphics
ACM Transactions on Graphics (TOG)
ARTSccelerated ray-tracing system
IEEE Computer Graphics and Applications
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Ray coherence theorem and constant time ray tracing algorithm
CG International '87 on Computer graphics 1987
Principles and applications of pencil tracing
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Fast ray tracing by ray classification
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Marching cubes: A high resolution 3D surface construction algorithm
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Display of Surfaces from Volume Data
IEEE Computer Graphics and Applications
Display of surfaces from volume data
Display of surfaces from volume data
Volume rendering by adaptive refinement
The Visual Computer: International Journal of Computer Graphics
A hierarchical data structure for multidimensional digital images
Communications of the ACM
An improved illumination model for shaded display
Communications of the ACM
Optimal surface reconstruction from planar contours
Communications of the ACM
A rendering algorithm for visualizing 3D scalar fields
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
V-buffer: visible volume rendering
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
New techniques for ray tracing procedurally defined objects
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
A 3-dimensional representation for fast rendering of complex scenes
SIGGRAPH '80 Proceedings of the 7th annual conference on Computer graphics and interactive techniques
Beam tracing polygonal objects
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
An adaptive subdivision algorithm and parallel architecture for realistic image synthesis
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Gaze-directed volume rendering
I3D '90 Proceedings of the 1990 symposium on Interactive 3D graphics
Octrees for faster isosurface generation
VVS '90 Proceedings of the 1990 workshop on Volume visualization
Hierarchical splatting: a progressive refinement algorithm for volume rendering
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Three-dimensional medical imaging: algorithms and computer systems
ACM Computing Surveys (CSUR)
Octrees for faster isosurface generation
ACM Transactions on Graphics (TOG)
An updated cross-indexed guide to the ray-tracing literature
ACM SIGGRAPH Computer Graphics
A survey of algorithms for volume visualization
ACM SIGGRAPH Computer Graphics
Volume rendering on scalable shared-memory MIMD architectures
VVS '92 Proceedings of the 1992 workshop on Volume visualization
Data parallel volume rendering as line drawing
VVS '92 Proceedings of the 1992 workshop on Volume visualization
Fast algorithms for volume ray tracing
VVS '92 Proceedings of the 1992 workshop on Volume visualization
I3D '92 Proceedings of the 1992 symposium on Interactive 3D graphics
Frequency domain volume rendering
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Turbulent wind fields for gaseous phenomena
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Segmented ray casting for data parallel volume rendering
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
A data distributed, parallel algorithm for ray-traced volume rendering
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Scalable parallel volume raycasting for nonrectilinear computational grids
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Parallel volume-rendering algorithm performance on mesh-connected multicomputers
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Fast data parallel polygon rendering
Proceedings of the 1993 ACM/IEEE conference on Supercomputing
Fast volume rendering using a shear-warp factorization of the viewing transformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Multi-dimensional trees for controlled volume rendering and compression
VVS '94 Proceedings of the 1994 symposium on Volume visualization
A multiresolution framework for volume rendering
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Real-time previewing for volume visualization
VVS '94 Proceedings of the 1994 symposium on Volume visualization
A Lipschitz method for accelerated volume rendering
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Real-time volume rendering on shared memory multiprocessors using the shear-warp factorization
PRS '95 Proceedings of the IEEE symposium on Parallel rendering
Depicting fire and other gaseous phenomena using diffusion processes
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Direct volume rendering with shading via three-dimensional textures
Proceedings of the 1996 symposium on Volume visualization
Fast sliding thin slab volume visualization
Proceedings of the 1996 symposium on Volume visualization
Fast perspective volume rendering with splatting by utilizing a ray-driven approach
Proceedings of the 7th conference on Visualization '96
Deformable volume rendering by 3D texture mapping and octree encoding
Proceedings of the 7th conference on Visualization '96
Real-time slicing of data space
Proceedings of the 7th conference on Visualization '96
Visualization of laser confocal microscopy datasets
Proceedings of the 7th conference on Visualization '96
PRS '97 Proceedings of the IEEE symposium on Parallel rendering
The VSBUFFER: visibility ordering of unstructured volume primitives by polygon drawing
VIS '97 Proceedings of the 8th conference on Visualization '97
Multiresolution tetrahedral framework for visualizing regular volume data
VIS '97 Proceedings of the 8th conference on Visualization '97
Accelerated volume rendering using homogeneous region encoding
VIS '97 Proceedings of the 8th conference on Visualization '97
Efficiently using graphics hardware in volume rendering applications
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
Adding shadows to a texture-based volume renderer
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
Wavelet based adaptive interpolation for volume rendering
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
Opacity-weighted color interpolation, for volume sampling
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
Image-based transfer function design for data exploration in volume visualization
Proceedings of the conference on Visualization '98
Modeling and rendering of weathered stone
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
A fast volume rendering algorithm for time-varying fields using a time-space partitioning (TSP) tree
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
High performance presence-accelerated ray casting
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
Stereo Matching with Transparency and Matting
International Journal of Computer Vision - 1998 Marr Prize
The RACE II engine for real-time volume rendering
HWWS '00 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Accelerating volume rendering with quantized voxels
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
A practical evaluation of popular volume rendering algorithms
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
Accelerating time-varying hardware volume rendering using TSP trees and color-based error metrics
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
4D volume rendering with the Shear Warp factorisation
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
A Parallel Algorithm for Volume Projections on SIMD Mesh-Connected Computers
The Journal of Supercomputing
Volume illustration: non-photorealistic rendering of volume models
Proceedings of the conference on Visualization '00
Hardware-accelerated parallel non-photorealistic volume rendering
NPAR '02 Proceedings of the 2nd international symposium on Non-photorealistic animation and rendering
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
Volume rendering multivariate data to visualize meteorological simulations: a case study
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
An interleaved parallel volume renderer with PC-clusters
EGPGV '02 Proceedings of the Fourth Eurographics Workshop on Parallel Graphics and Visualization
EGPGV '02 Proceedings of the Fourth Eurographics Workshop on Parallel Graphics and Visualization
OpenGL volumizer: a toolkit for high quality volume rendering of large data sets
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Accelerating volume rendering with texture hulls
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Distance-field based skeletons for virtual navigation
Proceedings of the conference on Visualization '01
Accelerated volume ray-casting using texture mapping
Proceedings of the conference on Visualization '01
Fast and reliable space leaping for interactive volume rendering
Proceedings of the conference on Visualization '02
A new object-order ray-casting algorithm
Proceedings of the conference on Visualization '02
Volume Rendering of DCT-Based Compressed 3D Scalar Data
IEEE Transactions on Visualization and Computer Graphics
A Multiscale Model for Structure-Based Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
Analysis of a Parallel Volume Rendering System Based on the Shear-Warp Factorization
IEEE Transactions on Visualization and Computer Graphics
IEEE Transactions on Visualization and Computer Graphics
Adaptive Projection Operators in Multiresolution Scientific Visualization
IEEE Transactions on Visualization and Computer Graphics
Adaptive Projection Operators in Multiresolution Scientific Visualization
IEEE Transactions on Visualization and Computer Graphics
Interactive Ray Tracing for Volume Visualization
IEEE Transactions on Visualization and Computer Graphics
Fast Ray-Tracing of Rectilinear Volume Data Using Distance Transforms
IEEE Transactions on Visualization and Computer Graphics
Interactive Direct Rendering of Trivariate B-Spline Scalar Functions
IEEE Transactions on Visualization and Computer Graphics
Volume Illustration: Nonphotorealistic Rendering of Volume Models
IEEE Transactions on Visualization and Computer Graphics
IEEE Computer Graphics and Applications
Direct Visualization of Volume Data
IEEE Computer Graphics and Applications
Visualization of 3D Ultrasound Data
IEEE Computer Graphics and Applications
IEEE Computer Graphics and Applications
Enabling View-Dependent Progressive Volume Visualization on the Grid
IEEE Computer Graphics and Applications
IPDPS '01 Proceedings of the 15th International Parallel & Distributed Processing Symposium
Dependent Rendering: Visualizing Multiple Properties of an Object
ISMDA '02 Proceedings of the Third International Symposium on Medical Data Analysis
Asynchronous Parallel Construction of Recursive Tree Hierarchies
ParNum '99 Proceedings of the 4th International ACPC Conference Including Special Tracks on Parallel Numerics and Parallel Computing in Image Processing, Video Processing, and Multimedia: Parallel Computation
InVIS - Interactive Visualization of Medical Data Sets
Dagstuhl '97, Scientific Visualization
Ray-Based Data Level Comparisons of Direct Volume Rendering Algorithms
Dagstuhl '97, Scientific Visualization
Determining Visible Points in a Three-Dimensional Discrete Space
DGCI '00 Proceedings of the 9th International Conference on Discrete Geometry for Computer Imagery
Optimizing parallel performance of unstructured volume rendering for the Earth Simulator
Parallel Computing - Parallel graphics and visualisation
Parallel ray tracing on a chip
Practical parallel rendering
Parallel Rendering Techniques for Massively Parallel Visualization
PAS '97 Proceedings of the 2nd AIZU International Symposium on Parallel Algorithms / Architecture Synthesis
An Efficient Wavelet-Based Compression Method for Volume Rendering
PG '99 Proceedings of the 7th Pacific Conference on Computer Graphics and Applications
High Performance Visualization in a Hospital Operating Theatre
TPCG '03 Proceedings of the Theory and Practice of Computer Graphics 2003
Interval Set: A Volume Rendering Technique Generalizing Isosurface Extraction
VIS '95 Proceedings of the 6th conference on Visualization '95
On Enhancing the Speed of Splatting with Indexing
VIS '95 Proceedings of the 6th conference on Visualization '95
Direct Rendering of Laplacian Pyramid Compressed Volume Data
VIS '95 Proceedings of the 6th conference on Visualization '95
High-Speed Volume Rendering Using Redundant Block Compression
VIS '95 Proceedings of the 6th conference on Visualization '95
Acceleration of template-based ray casting for volume visualization using FPGAs
FCCM '95 Proceedings of the IEEE Symposium on FPGA's for Custom Computing Machines
Fast rotation of volume data on data parallel architectures
VIS '91 Proceedings of the 2nd conference on Visualization '91
Achieving direct volume visualization with interactive semantic region selection
VIS '91 Proceedings of the 2nd conference on Visualization '91
VIS '91 Proceedings of the 2nd conference on Visualization '91
Interactive visualization of large scalar voxel fields
VIS '92 Proceedings of the 3rd conference on Visualization '92
Interactive splatting of nonrectilinear volumes
VIS '92 Proceedings of the 3rd conference on Visualization '92
Virtual smoke: an interactive 3D flow visualization technique
VIS '92 Proceedings of the 3rd conference on Visualization '92
Massively parallel isosurface extraction
VIS '92 Proceedings of the 3rd conference on Visualization '92
A scientific visualization renderer
VIS '92 Proceedings of the 3rd conference on Visualization '92
Fast volume rendering of compressed data
VIS '93 Proceedings of the 4th conference on Visualization '93
Fast surface rendering from raster data by voxel traversal using chessboard distance
VIS '94 Proceedings of the conference on Visualization '94
Parallel performance measures for volume ray casting
VIS '94 Proceedings of the conference on Visualization '94
Comparative Flow Visualization
IEEE Transactions on Visualization and Computer Graphics
Light Weight Space Leaping using Ray Coherence
VIS '04 Proceedings of the conference on Visualization '04
Visibility Culling for Time-Varying Volume Rendering Using Temporal Occlusion Coherence
VIS '04 Proceedings of the conference on Visualization '04
Multidimensional volume visualization for PC-based microsurgical simulation system
VRCAI '04 Proceedings of the 2004 ACM SIGGRAPH international conference on Virtual Reality continuum and its applications in industry
Performance Evaluation of Task Pools Based on Hardware Synchronization
Proceedings of the 2004 ACM/IEEE conference on Supercomputing
Adaptive sampling of intersectable models exploiting image and object-space coherence
Proceedings of the 2005 symposium on Interactive 3D graphics and games
GPU-accelerated high-quality hidden surface removal
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
Faster Isosurface Ray Tracing Using Implicit KD-Trees
IEEE Transactions on Visualization and Computer Graphics
Real-Time Volume Rendering of Time-Varying Data Using a Fragment-Shader Compression Approach
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
Acceleration Techniques for GPU-based Volume Rendering
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Empty Space Skipping and Occlusion Clipping for Texture-based Volume Rendering
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Visibility Culling Using Plenoptic Opacity Functions for Large Volume Visualization
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Visualizing Spatial and Temporal Variability in Coastal Observatories
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Low-complexity maximum intensity projection
ACM Transactions on Graphics (TOG)
3-D Volume modeling, feature identification and rendering of a human skull
MIC'06 Proceedings of the 25th IASTED international conference on Modeling, indentification, and control
Modeling and rendering of weathered stone
ACM SIGGRAPH 2006 Courses
IEEE Transactions on Visualization and Computer Graphics
Modeling and rendering of weathered stone
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Interactive ray tracing for volume visualization
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Visualization in Medicine: Theory, Algorithms, and Applications
Visualization in Medicine: Theory, Algorithms, and Applications
The impact of Web3D technologies on medical education and training
Computers & Education
Interactive segmentation of image volumes with Live Surface
Computers and Graphics
A reliable surface reconstruction system in biomedicine
Computer Methods and Programs in Biomedicine
Adaptive load balancing for raycasting of non-uniformly bricked volumes
Parallel Computing
Interactive volume cutting of medical data
Computers in Biology and Medicine
Volumetric Curved Planar Reformation for Virtual Endoscopy
IEEE Transactions on Visualization and Computer Graphics
Self-Adaptive Configuration of Visualization Pipeline Over Wide-Area Networks
IEEE Transactions on Computers
Interactive volume isosurface rendering using BT volumes
Proceedings of the 2008 symposium on Interactive 3D graphics and games
Real-time visualization of large volume datasets on standard PC hardware
Computer Methods and Programs in Biomedicine
High performance approach for inner structures visualisation in medical data
International Journal of Computer Applications in Technology
Real-time smoke rendering using compensated ray marching
ACM SIGGRAPH 2008 papers
Using X3D for medical training simulations
Web3D '08 Proceedings of the 13th international symposium on 3D web technology
Streaming model based volume ray casting implementation for Cell Broadband Engine
Scientific Programming - High Performance Computing with the Cell Broadband Engine
A Half-Skewed Octree for Volume Ray Casting
IEICE - Transactions on Information and Systems
Silhouette detection in volumetric models based on a non-photorealistic illumination system
Computers and Graphics
View compensated compression of volume rendered images for remote visualization
IEEE Transactions on Image Processing
Fast Cube Cutting for Interactive Volume Visualization
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part I
Accelerating volume rendering by ray leaping with back steps
Computer Methods and Programs in Biomedicine
Accelerate volume splatting by using run length encoding
ICCS'03 Proceedings of the 1st international conference on Computational science: PartI
Acceleration of terrain rendering using cube mesh
ICVR'07 Proceedings of the 2nd international conference on Virtual reality
Hardware-accelerated volume rendering for real-time medical data visualization
ISVC'07 Proceedings of the 3rd international conference on Advances in visual computing - Volume Part II
Physics-based interactive volume manipulation for sharing surgical process
IEEE Transactions on Information Technology in Biomedicine - Special section on new and emerging technologies in bioinformatics and bioengineering
Technical Section: A rapid 3D seed-filling algorithm based on scan slice
Computers and Graphics
Large data visualization on distributed memory multi-GPU clusters
Proceedings of the Conference on High Performance Graphics
Comparing GPU-based multi-volume ray casting techniques
Computer Science - Research and Development
Challenges of medical image processing
Computer Science - Research and Development
Indirect shader domain rendering
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part II
Giga-scale multiresolution volume rendering on distributed display clusters
HCIV'09 Proceedings of the Second IFIP WG 13.7 conference on Human-computer interaction and visualization
An approach to point based approximate color bleeding with volumes
ISVC'11 Proceedings of the 7th international conference on Advances in visual computing - Volume Part I
Efficient perspective volume visualization method using progressive depth refinement
CIS'04 Proceedings of the First international conference on Computational and Information Science
PARM: data structure for efficient volume ray casting
ISCIS'06 Proceedings of the 21st international conference on Computer and Information Sciences
Bidirectional distancemap for efficient volume ray casting
ISCIS'06 Proceedings of the 21st international conference on Computer and Information Sciences
Hierarchical σ-octree for visualization of ultrasound datasets
FSKD'06 Proceedings of the Third international conference on Fuzzy Systems and Knowledge Discovery
An efficient path-generation method for virtual colonoscopy
CIARP'05 Proceedings of the 10th Iberoamerican Congress conference on Progress in Pattern Recognition, Image Analysis and Applications
High-quality shear-warp volume rendering using efficient supersampling and pre-integration technique
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
Parallel volume rendering with early ray termination for visualizing large-scale datasets
ISPA'04 Proceedings of the Second international conference on Parallel and Distributed Processing and Applications
VECPAR'04 Proceedings of the 6th international conference on High Performance Computing for Computational Science
High quality volume rendering for large medical datasets using GPUs
AsiaSim'04 Proceedings of the Third Asian simulation conference on Systems Modeling and Simulation: theory and applications
Computational study of helix wave formation in active media
Mathematical and Computer Modelling: An International Journal
ALua: flexibility for parallel programming
Computer Languages, Systems and Structures
Progressive Visualization of Losslessly Compressed DICOM Files Over the Internet
Journal of Medical Systems
Proceedings of the Digital Production Symposium
A simple and novel seed-set finding approach for iso-surface extraction
EUROVIS'05 Proceedings of the Seventh Joint Eurographics / IEEE VGTC conference on Visualization
Adaptive volume rendering using fuzzy logic control
EGVISSYM'01 Proceedings of the 3rd Joint Eurographics - IEEE TCVG conference on Visualization
Fast ray traversal of tetrahedral and hexahedral meshes for direct volume rendering
EUROVIS'06 Proceedings of the Eighth Joint Eurographics / IEEE VGTC conference on Visualization
Optimized volume raycasting for graphics-hardware-based cluster systems
EG PGV'06 Proceedings of the 6th Eurographics conference on Parallel Graphics and Visualization
Streaming model based volume ray casting implementation for cell broadband engine
EG PGV'08 Proceedings of the 8th Eurographics conference on Parallel Graphics and Visualization
Parallel volume rendering on the IBM Blue Gene/P
EG PGV'08 Proceedings of the 8th Eurographics conference on Parallel Graphics and Visualization
Isosurface ambient occlusion and soft shadows with filterable occlusion maps
SPBG'08 Proceedings of the Fifth Eurographics / IEEE VGTC conference on Point-Based Graphics
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Image-based rendering of surfaces from volume data
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Real-time volume rendering for virtual colonoscopy
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
A framework to visualize and interact with multimodal medical images
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Volumetric reconstruction, compression and rendering of natural phenomena from multi-video data
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
GPU-based object-order ray-casting for large datasets
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
iSBVR: isosurface-aided hardware acceleration techniques for slice-based volume rendering
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
On the design of a real-time volume rendering engine
EGGH'92 Proceedings of the Seventh Eurographics conference on Graphics Hardware
Sheared interpolation and gradient estimation for real-time volume rendering
EGGH'94 Proceedings of the Ninth Eurographics conference on Graphics Hardware
Interactive rendering of volumetric data sets
EGGH'94 Proceedings of the Ninth Eurographics conference on Graphics Hardware
Real-time isosurface rendering of smooth fields
Journal of Visualization
An image division approach for volume ray casting in multi-threading environment
Multimedia Tools and Applications
The Visual Computer: International Journal of Computer Graphics
Direct volume manipulation for visualizing intraoperative liver resection process
Computer Methods and Programs in Biomedicine
| Hi-index | 0.01 |
Volume rendering is a technique for visualizing sampled scalar or vector fields of three spatial dimensions without fitting geometric primitives to the data. A subset of these techniques generates images by computing 2-D projections of a colored semitransparent volume, where the color and opacity at each point are derived from the data using local operators. Since all voxels participate in the generation of each image, rendering time grows linearly with the size of the dataset. This paper presents a front-to-back image-order volume-rendering algorithm and discusses two techniques for improving its performance. The first technique employs a pyramid of binary volumes to encode spatial coherence present in the data, and the second technique uses an opacity threshold to adaptively terminate ray tracing. Although the actual time saved depends on the data, speedups of an order of magnitude have been observed for datasets of useful size and complexity. Examples from two applications are given: medical imaging and molecular graphics.