TechRxiv
1/1
2 files

Augmenting Image Warping-Based Remote Volume Rendering with Ray Tracing

preprint
posted on 01.07.2020 by Stefan Zellmann

We propose an image warping-based remote rendering technique for volumes that decouples the rendering and display phases. Our work builds on prior work that samples the volume on the client using ray casting and reconstructs a z-value based on some heuristic. The color and depth buffer are then sent to the client that reuses this depth image as a stand-in for subsequent frames by warping it according to the current camera position until new data was received from the server. We augment that method by implementing the client renderer using ray tracing. By representing the pixel contributions as spheres, this allows us to effectively vary their footprint based on the distance to the viewer, which we find to give better results than point-based rasterization when applied to volumetric data sets.

History

Email Address of Submitting Author

zellmann@uni-koeln.de

ORCID of Submitting Author

https://orcid.org/0000-0003-2880-9090

Submitting Author's Institution

University of Cologne

Submitting Author's Country

Germany

Licence

Exports