Abstract:

A multiband rendering algorithm for electromagnetic environment rendering is proposed, whereas previous work on electromagnetic environment rendering does not take into consideration. Based on raycasting algorithm, a multiband transfer function is proposed in which colors used for band data are different and controllable. A color enhancement factor is defined to improve the contrasting effect of different bands in the final image. The proposed algorithm is implemented on GPU using compute unified device architecture, and is able to render the electromagnetic environment at interactive frame rates. The experimental results show that the rendering results can clearly display bands information of electromagnetic environment. Furthermore, users can interactively control the rendering results for a better electromagnetic environment observation.