Screen Partitioning Load Balancing for Parallel Rendering on a Multi-GPU Multi-Display Workstation

Dong, Yangzi; Peng, Chao

doi:10.2312/pgv.20191111

Cited by 3 publications

(1 citation statement)

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“…The amount of data saved in the resulting Ąles of 3D explosion Ąelds is particularly large, so the efficiency of volume rendering is also a major problem that hinders the visualization processing. Generally, the following two methods are used to improve the rendering speed: One is to introduce parallel processing technology and to develop parallel volume rendering algorithms 43 ; the other is to use GPU hardware acceleration to speed up sampling and compositing calculations in the rendering process to improve the volume rendering efficiency [44][45][46][47] . Both of these methods set greater demands on the performance of the computer.…”

Section: Introductionmentioning

confidence: 99%

A Volume Rendering Visualization Method Oriented to Explosion Field Features

Ning,

Zhao,

2024

Preprint

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To observe the deformation and the failure process of solid objects in explosion and impact simulations, the clarity and accuracy of simulation image representations should be ensured. However, in the results of three-dimensional (3D) explosion field rendering, surface confusion and blurred images of the microstructure often lead to misunderstandings of the simulation results. In this work, based on the ray casting method and the Blinn-Phong lighting model, a volume rendering method is proposed that can adapt to the characteristics of step changes in the explosion field data and satisfies the requirements of observing the microstructure. The Blinn-Phong lighting model is applied to the light and shade calculation of the resampling point, and the gradient of the resampling point is obtained via interpolation calculations; then, it is normalized to obtain the normal vector. When calculating the material color of the resampling point, the transfer function calculation is performed first; then, the interpolation calculation is performed. Finally, the opacity of the resampling point and the associated material color are substituted into the ray casting synthesis formula.In addition, several groups of examples of visual effects are analyzed from the subjective point of view of human visual effects and the objective points of view of image entropy, the meangradient, image mean and standard deviation. The results show that the new method addresses the problem of interface color confusion, improves the accuracy of microstructure rendering in solid media, increases the spatial sense of visual images, and satisfies the visualization requirements for explosion products and shock waves. At the same time, this approach effectively shortens the time for volume rendering of the explosion field.

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