Hardware Accelerated Displacement Mapping for Image Based Rendering

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 -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. Key words: Displacement Mapping, Image Warping, Hardware Acceleration, Texture Mapping, Frame-Buffer Tricks, Image-Based Rendering.

• Type: Conference
• Year: 2001
• Where: GRAPHICSINTERFACE
• Authors: Jan Kautz, Hans-Peter Seidel
• Keywords: Current Graphics Hardware, Displacement Mapped Geometry, Displacement Mapped Polygons, GRAPHICSINTERFACE 2001, GRAPHICSINTERFACE 2007