A Benchmark for Animated Ray Tracing
IEEE Computer Graphics and Applications
View-dependent displacement mapping
ACM SIGGRAPH 2003 Papers
Hardware accelerated per-pixel displacement mapping
GI '04 Proceedings of the 2004 Graphics Interface Conference
Real-time relief mapping on arbitrary polygonal surfaces
Proceedings of the 2005 symposium on Interactive 3D graphics and games
Relief mapping of non-height-field surface details
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
Dynamic parallax occlusion mapping with approximate soft shadows
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
ACM SIGGRAPH 2006 Papers
Rendering geometry with relief textures
GI '06 Proceedings of Graphics Interface 2006
Pyramidal displacement mapping: a GPU based artifacts-free ray tracing through an image pyramid
Proceedings of the ACM symposium on Virtual reality software and technology
GH '06 Proceedings of the 21st ACM SIGGRAPH/EUROGRAPHICS symposium on Graphics hardware
Maximum mipmaps for fast, accurate, and scalable dynamic height field rendering
Proceedings of the 2008 symposium on Interactive 3D graphics and games
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Interactive smooth and curved shell mapping
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
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We present an effective traversal algorithm and a hardware architecture to accelerate inverse displacement mapping. This includes a set of techniques that are used to reduce the number of iterative steps that are performed during inverse displacement mapping. For this purpose, we present two algorithms to reduce the number of descending steps and two algorithms to improve the ascending process. All these techniques are combined; we observe up to 66% reduction in the number of iterative steps as compared to other pyramidal displacement-mapping algorithms. We also propose a novel displacement-mapping hardware architecture based on the novel techniques. The experimental results obtained from the FPGA and ASIC evaluation demonstrate that our novel architecture offers many benefits in terms of chip area, power consumption, and off-chip memory accesses for mobile GPUs.