author = "Espinha, Rodrigo and Celes, Waldemar",
          affiliation = "{Tecgraf / PUC-Rio}",
                title = "High-quality hardware-based ray-casting volume rendering using 
                         partial pre-integration",
            booktitle = "Proceedings...",
                 year = "2005",
               editor = "Rodrigues, Maria Andr{\'e}ia Formico and Frery, Alejandro 
         organization = "Brazilian Symposium on Computer Graphics and Image Processing, 18. 
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "volume rendering, unstructured meshes, ray-casting, partial 
             abstract = "In this paper, we address the problem of the interactive volume 
                         rendering of unstructured meshes and propose a new hardware-based 
                         ray-casting algorithm using partial pre-integration. The proposed 
                         algorithm makes use of modern programmable graphics card and 
                         achieves rendering rates competitive with full pre-integration 
                         approaches (up to 2M tet/sec). This algorithm allows the 
                         interactive modification of the transfer function and results in 
                         high-quality images, since no artifact due to under-sampling the 
                         full numerical pre-integration exists. We also compare our 
                         approach with implementations of cell-projection algorithm and 
                         demonstrate that ray-casting can perform better than cell 
                         projection, because it eliminates the high costs involved in 
                         ordering and transferring data.",
  conference-location = "Natal",
      conference-year = "9-12 Oct. 2005",
             language = "en",
           targetfile = "espinhar_quality.pdf",
        urlaccessdate = "2021, Nov. 30"