منابع مشابه
Real-Time Caustics
We present a new algorithm to render caustics. The algorithm discretizes the specular surfaces into sample points. Each of the sample points is treated as a pinhole camera that projects an image of the incoming light onto the diffuse receiver surfaces. Anti-aliasing is performed by considering the local surface curvature at the sample points to filter the projected images. The algorithm can be ...
متن کاملRealistic Real-time Underwater Caustics and Godrays
Realistic rendering of underwater scenes has been a subject of increasing importance in modern real-time 3D applications, such as open-world 3D games, which constantly present the user with opportunities to submerge oneself in an underwater environment. Crucial to the accurate recreation of these environments are the effects of caustics and godrays. In this paper, we shall present a novel algor...
متن کاملStylized Caustics: Progressive Rendering of Animated Caustics
In recent years, much work was devoted to the design of light editing methods such as relighting and light path editing. So far, little work addressed the target-based manipulation and animation of caustics, for instance to a differently-shaped caustic, text or an image. The aim of this work is the animation of caustics by blending towards a given target irradiance distribution. This enables an...
متن کاملImproving Image-Space Caustics Via Variable-Sized Splatting
Interactivity requires tradeoffs to achieve the right balance between rendering quality and speed. In practice, today’s applications restrict lighting to mainly direct illumination, sometimes augmented by precomputed transfer techniques for diffuse global effects. Dynamic high-frequency specular effects, such as caustics, are largely lacking due to the high costs for recomputation each frame. R...
متن کاملCaustics of de Sitter spacelike curves in Minkowski 3-space
In this paper, we consider evolutes of spacelike curves in de Sitter 2-space. Applying the theory of singularity theory, we find that these evolutes can be seen as one dimensional caustics which are locally diffeomorphic to lines or ordinary cusps. We establish the relationships between singularities of caustics and geometric invariants of curves under the action of the Lorentz group. c ©2016 A...
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ژورنال
عنوان ژورنال: International Journal of Mathematics and Mathematical Sciences
سال: 1986
ISSN: 0161-1712,1687-0425
DOI: 10.1155/s0161171286000662