Volumetric Spot Noise for Procedural 3D Shell Texture Synthesis
Résumé
In this paper, we present an extension of the Locally Controlled Spot Noise and a visualization pipeline for volumetric fuzzy details synthesis. We extend the noise model to author volumetric fuzzy details using filtered 3D quadratic kernel functions convolved with a projective non-uniform 2D distribution of impulses. We propose a new method based on order independent splatting to compute a fast view dependent approximation of shell noise at interactive rates. Our method outperforms ray marching techniques and avoids aliasing artifacts, thus improving interactive content authoring feedback. Moreover, generated surface details share the same properties as procedural noise: they extend on potentially infinite surfaces, are defined in an extremely compact way, are non-repetitive, continuous (no discrete voxel-artifacts when zooming) and independent of the definition of the underlying surface (no surface parameterization is required).
Mots clés
Procedural texturing
I37 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color
(according to ACM CCS): I33 [Computer Graphics]: Picture/Image Generation-Display algorithms I35 [Computer Graphics]: Computational Geometry and Object Modeling-Curve
procedural noise
volumetric visualization
surface
solid
Image synthesis
and texture Keywords Procedural texturing
shadowing
shading
and object rep- resentations I37 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color
Origine | Publication financée par une institution |
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