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Confetti: object-space point blending and splatting.

Renato Pajarola·Miguel Sainz·Patrick Guidotti
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Abstract

In this paper, we present Confetti, a novel point-based rendering approach based on object-space point interpolation of densely sampled surfaces. We introduce the concept of a transformation-invariant covariance matrix of a set of points which can efficiently be used to determine splat sizes in a multiresolution point hierarchy. We also analyze continuous point interpolation in object-space and we define a new class of parameterized blending kernels as well as a normalization procedure to achieve smooth blending. Furthermore, we present a hardware accelerated rendering algorithm based on texture mapping and alpha-blending as well as programmable vertex and pixel-shaders.

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AlgorithmsArtificial IntelligenceComputer GraphicsImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalInformation Storage and RetrievalNumerical Analysis, Computer-AssistedReproducibility of ResultsSensitivity and SpecificitySignal Processing, Computer-AssistedUser-Computer InterfaceEvaluation StudyJournal Article

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Renato Pajarola, Miguel Sainz, Patrick Guidotti. Confetti: object-space point blending and splatting.. https://doi.org/10.1109/tvcg.2004.19

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