Advanced GPU-based ray casting for bricked datasets

Gavrilov, Nikolay; Турлапов, Вадим

doi:10.1145/2342896.2343038

Cited by 2 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Linear interpolation artifacts can be overcome by using more accurate higher-order interpolation filters. Existing works replace trilinear interpolation with tri-cubic [18,61], cubic B-spline [35,40,53], sinc [2] and radially bandlimited Gaussian filters [47,64]. Original discrete data needs to be pre-processed first through encoding or prefiltering [54,65] to obtain the sequence of coefficients of the interpolating functions.…”

Section: Interpolation Artifactsmentioning

confidence: 99%

MFA-DVR: Direct Volume Rendering of MFA Models

Sun¹,

Lenz²,

Yu³

et al. 2022

Preprint

View full text Add to dashboard Cite

Fig. 1: Volume rendering results using MFA-DVR, a ray casting based direct volume rendering algorithm using the MFA model. (a) Volume rendering results on a sparse dataset of Gaussian Beam using MFA-DVR compared with structured volume rendering algorithm using NNS or trilinear interpolation, and unstructured volume rendering algorithms. The same structured grid dataset is used for all the algorithms evaluated, and treated as unstructured grid for unstructured volume rendering algorithms. (b) Volume rendering results on Aneurysm dataset using the MFA model with different compression ratios (CRs). (c) Zoom in view of (b).

show abstract

Section: Interpolation Artifactsmentioning

confidence: 99%

MFA-DVR: Direct Volume Rendering of MFA Models

Sun¹,

Lenz²,

Yu³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Ray casting is the fundamental steps for performing the ray-object interactions. It is actually a procedure of ray collision checking in the virtual space [21,22]. The simplest form of ray casting is to compare all the primitives (or graphics objects) against the ray, taking the time complexity of O(n) against n objects in the scene.…”

Section: Specular Reflection Diffuse Reflectionmentioning

confidence: 99%

A Shader-Based Ray Tracing Engine

Park¹,

Baek

2021

Applied Sciences

View full text Add to dashboard Cite

Recently, ray tracing techniques have been highly adopted to produce high quality images and animations. In this paper, we present our design and implementation of a real-time ray-traced rendering engine. We achieved real-time capability for triangle primitives, based on the ray tracing techniques on GPGPU (general-purpose graphics processing unit) compute shaders. To accelerate the ray tracing engine, we used a set of acceleration techniques, including bounding volume hierarchy, its roped representation, joint up-sampling, and bilateral filtering. Our current implementation shows remarkable speed-ups, with acceptable error values. Experimental results shows 2.5–13.6 times acceleration, and less than 3% error values for the 95% confidence range. Our next step will be enhancing bilateral filter behaviors.

show abstract

Advanced GPU-based ray casting for bricked datasets

Abstract: a) (b) (b) Figure 1: a) bounding boxes fitting; b) empty space skipping and early ray termination; c) tri-linear (left) & tri-cubic (right) interpolation modes side-by-side comparison (MANIX test dataset).

Cited by 2 publications

References 3 publications

MFA-DVR: Direct Volume Rendering of MFA Models

MFA-DVR: Direct Volume Rendering of MFA Models

A Shader-Based Ray Tracing Engine

Contact Info

Product

Resources

About