Proceedings: GI 2001

Hardware Accelerated Displacement Mapping for Image Based Rendering

Jan Kautz , Hans-Peter Seidel

Proceedings of Graphics Interface 2001: Ottawa, Ontario, Canada, 7 - 9 June 2001, 61-70

DOI 10.20380/GI2001.08

  • BibTeXex

    @inproceedings@inproceedings{KS:HAD-gi2001,
     title = {Hardware Accelerated Displacement Mapping for Image Based Rendering},
     author = {Jan Kautz and Hans-Peter Seidel},
     booktitle = {Proceedings of the Graphics Interface 2001 Conference, June 7-9 2001, Ottawa, Ontario, Canada},
     url = {http://graphicsinterface.org/wp-content/uploads/gi2001-8.pdf},
     year = {2001},
     month = {June},
     pages = {61--70}
    }
    

Abstract

In this paper, we present a technique for rendering displacement mapped geometry using current graphics hardware. Our method renders a displacement by slicing through the enclosing volume. The alpha-test is used to render only the appropriate parts of every slice. The slices need not to be aligned with the base surface, e.g. it is possible to do screen-space aligned slicing. We then extend the method to be able to render the intersection between several displacement mapped polygons. This is used to render a new kind of image-based objects based on images with depth, which we call image based depth objects. This technique can also directly be used to accelerate the rendering of objects using the image-based visual hull. Other warping based IBR techniques can be accelerated in a similar manner.