Direct Volume Rendering for CFD Using Octree-Based 3D Texture Volume Rendering
Xiaoping Liu, Vcc Division · Journal of Engineering Graphics · 2005
Direct volume rendering based 3D texture can guarantee image quality and reach interactive frame rates. Because of the restriction of texture memory, it is difficult to render large volume data. This paper gives a 3D texture division algorithm based octree and Computational Fluid Dynamics (CFD) data set, which carries on the division of the data field at first, then turns the tetrahedron mesh of CFD data field into the regular mesh data field, finally produces some 3D texture blocks. The experiment proves that this algorithm can realize direct volume rendering of large CFD data field and render high quality images at interactive basically. It can reflect better inner arrangement and structure of volume data field.