Volumetric representations are useful for complex scenes, and become increasingly popular for level of detail and scene reconstruction. The model can represent opaque surfaces in the volumetric light transport framework. We introduce a novel transmittance model to improve the volumetric representation of 3D scenes. Finally, we also publish a pre-rendered dataset ready for use at.
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Alongside this paper, we publish the model for further extension, jointly with code to dynamically generate samples from the dataset. It can be used to develop, evaluate, train, test and tune refractive algorithms. Hence, we propose an optical digital twin of an underwater environment, which has been geometrically verified to resemble a real water lab tank that features the two most common optical interfaces. To obtain unbiased 3D measurements and to yield a geometrically faithful reconstruction of the scene, it is mandatory to deal with the effects in a proper manner. Hence, multi-media interfaces, between water, glass and air are introduced, entailing refraction effects in the images taken through them. Commonly, a flat window or a half-sphere of glass, called flat-port or dome-port, respectively is used to implement such kind of interface. These housings, in turn, need interfaces to the world, enduring extreme pressures within the water column. To explore this visually rather adversarial environment with cameras, they have to be protected by pressure housings. Most parts of the Earth’s surface are situated in the deep ocean.
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For ease of use it ex- poses a single-ray programming model with full support for recur- sion and a dynamic dispatch mechanism similar to virtual function calls. OptiX achieves high perfor- mance through a compact object model and application of several ray tracing-specific compiler optimizations. This enables the implementation of a highly diverse set of ray tracing-based algorithms and appli- cations, including interactive rendering, offline rendering, collision detection systems, artificial intelligence queries, and scientific sim- ulations such as sound propagation. Consequently, the core of OptiX is a domain-specific just-in-time compiler that generates custom ray tracing kernels by combining user-supplied programs for ray generation, material shading, object intersection, and scene traversal.
OptiX builds on the key observation that most ray tracing algorithms can be implemented using a small set of programmable operations. The OptiX™ engine is a programmable ray tracing system designed for NVIDIA® GPUs and other highly parallel architectures.