Water Reflection, Refraction Simulation Based on Perlin Noise and Ray-tracing

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Paraxial meridional ray tracing equations from the unified reflection-refraction law via geometric algebra

We derive the paraxial meridional ray tracing equations from the unified reflection-refraction law using geometric algebra. This unified law states that the normal vector to the interface is a rotation of the incident ray or of the refracted ray or of the reflected ray by an angle equal to the angle of incidence or of refraction. We obtain the finite meridional ray tracing equations by simply e...

متن کامل

Ray-Tracing Based Interactive Camera Simulation

Camera simulation aims to enhance realistic rendering, lens design and augmented reality by accurately simulating geometrical optics. Here our work focuses on optical phenomena, such as depth of field, monochromatic aberration, distortion, and aperture exposure, that are based on real camera lens architecture. Our approach is modeling pixel equation using ray tracing algorithm to render scenes ...

متن کامل

Mobile Radio Propagation Simulation Based on Ray-Tracing Method

あらまし レイトレーシング法は送信点から受信点に到達するレイを幾何学的にトレースするだけで電波伝搬 をシミュレートでき,移動通信のシステム設計やエリア設計に必要な伝搬諸特性を一元的に推定できる魅力的な 方法である.しかし,高精度な結果を得るためには形状と材質(電気的特性)に関する詳細な構造物データを必 要とする.また,広範囲にわたる多くの構造物を対象に相互作用回数(反射,回折,透過)の多いレイをトレー スしなければならず,演算に多くの時間を要する.本論文では,筆者らが開発した市街地マクロセル対応のレイ トレーシングシステムの概要を述べる.本システムには演算処理の高速化を実現するために筆者らが提案してい る様々な高速化技術が適用されている.また,本論文では市街地の実測データと比較することにより本システム の演算時間と推定精度を評価し,本システムが実用に資するものであることを明らかにする...

متن کامل

Efficient Ray Tracing Simulation

Ray Tracing (RT) is a geometrical optics approach which determines most propagation paths that can propagate from transmitter (Tx) to receiver (Rx). It has been proved to be an accurate and versatile propagation prediction tool for both indoor and outdoor scenarios. As other deterministic channel models, RT requires exact knowledge of the geometrical and electromagnetic description of the relev...

متن کامل

Tropospheric Refraction Modeling Using Ray-Tracing and Parabolic Equation

Refraction phenomena that occur in the lower atmosphere significantly influence the performance of wireless communication systems. This paper provides an overview of corresponding computational methods. Basic properties of the lower atmosphere are mentioned. Practical guidelines for radiowave propagation modeling in the lower atmosphere using ray-tracing and parabolic equation methods are given...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Signal Processing, Image Processing and Pattern Recognition

سال: 2017

ISSN: 2005-4254,2005-4254

DOI: 10.14257/ijsip.2017.10.3.07