A transform, lighting and setup ASIC for surface splatting

Heinzle, Simon; Saurer, Olivier; Axmann, S.; Browarnik, Diego Hernan; Schmidt, Allan H.; Carbognani, F.; Luethi, P.; Felber, N.; Groß, Markus

doi:10.1109/iscas.2008.4542042

Cited by 1 publication

(1 citation statement)

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“…EWA splatting has been implemented on conventional GPUs either by employing textured quads to approximate the points [RPZ02] or by making use of advanced features of GPUs [ZRB*04, BHZK05, ZP06, GBP06]. Recently, a dedicated hardware architecture for EWA surface splatting has been presented [WHA*07, HSA*08]. Reconstruction methods for rendering point sets [ABCO*01, GG07] have been investigated as well, either through raytracing [AKP*05] or a dynamic upsampling approach which directly splats the generated samples [GGG08].…”

Section: Related Workmentioning

confidence: 99%

Motion Blur for EWA Surface Splatting

Heinzle

Wolf

Kanamori

et al. 2010

Computer Graphics Forum

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This paper presents a novel framework for elliptical weighted average (EWA) surface splatting with time-varying scenes. We extend the theoretical basis of the original framework by replacing the 2D surface reconstruction filters by 3D kernels which unify the spatial and temporal component of moving objects. Based on the newly derived mathematical framework we introduce a rendering algorithm that supports the generation of high-quality motion blur for point-based objects using a piecewise linear approximation of the motion. The rendering algorithm applies ellipsoids as rendering primitives which are constructed by extending planar EWA surface splats into the temporal dimension along the instantaneous motion vector. Finally, we present an implementation of the proposed rendering algorithm with approximated occlusion handling using advanced features of modern GPUs and show its capability of producing motion-blurred result images at interactive frame rates.

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