Large scale volume rendering algorithm based on packed-index texture
Xiangwen Zhang · Computer Engineering and Applications Journal · 2008
An efficient algorithm is proposed to overcome problems existing in rendering large scale volume data.The original data is packed into small bricks and empty bricks are removed to save texture space.The index texture is also created for efficient packed texture access during rendering.The packed-index data structure allows us uploading lager scale volume data in GPU RAM entirely.The locations of empty bricks and high density bricks are marked in index texture and valid cube representation is generated before rendering for combining acceleration algorithm such as early ray termination and empty-space skipping.The algorithm can render large scale volume data efficiently and get the good quality of the resulting image.