Interactive mesostructures

Nykl, Scott; Mourning, Chad; Chelberg, David

doi:10.1145/2448196.2448202

Cited by 4 publications

(2 citation statements)

References 39 publications

(66 reference statements)

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“…In contrast to our method they rely on the quadrangular layout of the heightfield texture. Nykl et al [2013] propose a combination of per-texel collision detection and dynamic deformation applied to a heightfield texture. Their method is based on ray casting the heightfield, which limits its application to planar meshes and does not allow extrusion outside the bounding shape.…”

Section: Related Workmentioning

confidence: 99%

Real-time local displacement using dynamic GPU memory management

Schäfer

Keinert

Stamminger

2013

Proceedings of the 5th High-Performance Graphics Conference

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Figure 1: Local displacement such as the character footprints (left) or sculpting brushes (center) including vector displacement (right) are applied to arbitrary geometry using hardware tessellation patterns. Memory for displacement is dynamically allocated on the GPU. The total time to apply a deformation is less than a millisecond, even for complex models and scenes. AbstractWe propose a novel method for local displacement events in large scenes, such as scratches, footsteps, or sculpting operations. Deformations are stored as displacements for vertices generated by hardware tessellation. Adaptive mesh refinement, application of the displacement and all involved memory management happen completely on the GPU. We show various extensions to our approach, such as on-the-fly normal computation and multi-resolution editing. In typical game scenes we perform local deformations at arbitrary positions in far less than one millisecond. This makes the method particularly suited for games and interactive sculpting applications.

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Section: Related Workmentioning

confidence: 99%

Real-time local displacement using dynamic GPU memory management

Schäfer

Keinert

Stamminger

2013

Proceedings of the 5th High-Performance Graphics Conference

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“…Furthermore, this technique requires no preprocessing time. It requires only the existing displacement and normal data consumed by traditional mesostructure rendering algorithms as well as any per-texel material properties desired [9].…”

Section: Introductionmentioning

confidence: 99%

Interactive Mesostructures with Volumetric Collisions

Nykl

Mourning

Chelberg

2014

IEEE Trans. Visual. Comput. Graphics

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This paper presents a technique for interactively colliding with and deforming mesostructures at a per-texel level. It is compatible with a broad range of existing mesostructure rendering techniques including both safe and unsafe ray-height field intersection algorithms. This technique is able to replace traditional 3D geometrical deformations (vertex-based) with 2D image space operations (pixel-based) that are parallelized on a GPU without CPU-GPU data shuffling and integrates well with existing physics engines. Additionally, surface and material properties may be specified at a per-texel level enabling a mesostructure to possess varying attributes intrinsic to its surface and collision behavior. Furthermore, this approach may replace traditional decals with image-based operations that naturally accumulate deformations without inserting any new geometry. This technique provides a simple and efficient way to make almost every surface in a virtual world responsive to user actions and events. It requires no preprocessing time and storage requirements of one additional texture or less. The algorithm uses existing inverse displacement map algorithms as well as existing physics engines and can be easily incorporated into new or existing game pipelines.

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Integrated multimodal interaction using texture representations

Sterling

2016

Computers & Graphics

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In this paper, we explore texture mapping as a unified representation for enabling realistic multimodal interaction with finelydetailed surfaces. We show how both normal maps and relief maps can be adopted as unified representations to handle collisions with textured rigid body objects, synthesize complex sound effects from long lasting collisions and perform rendering of haptic textures. The resulting multimodal display system allows a user to see, hear, and feel complex interactions with textured surfaces. By using texture representations for seamlessly integrated multimodal interaction instead of complex triangular meshes otherwise required, this work is able to achieve up to 25 times performance speedup and reduce up to six orders of magnitude in memory storage. We further validate the results through user studies to demonstrate the effectiveness of texture representations for integrated multimodal display.

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Interactive mesostructures

Cited by 4 publications

References 39 publications

Real-time local displacement using dynamic GPU memory management

Real-time local displacement using dynamic GPU memory management

Interactive Mesostructures with Volumetric Collisions

Integrated multimodal interaction using texture representations

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