Sökning: "Ray-Tracing"

Visar resultat 1 - 5 av 62 avhandlingar innehållade ordet Ray-Tracing.

  1. 1. A 2D Ray Tracing Model of Ultrasonic Wave Propagation in an Anisotropic Weld

    Författare :Qingwei Liu; Chalmers tekniska högskola; []
    Nyckelord :probe model; ray tracing; anisotropic weld; wave propagation; FEM;

    Sammanfattning : .... LÄS MER

  3. 2. Room Acoustic Ray-Tracing : Understanding, evaluating and expanding the toolset

    Författare :Hanna Autio; Byggnadsmekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Room acoustics; acoustic ray tracing; Room acoustic simulation; virtual reality; acoustic scattering;

    Sammanfattning : Room acoustic simulations are an important tool, both for design of spaces with satisfactory acoustics and for use in virtual reality experiences. Auralization of acoustic simulations are becoming more and more important in the context of Virtual and Augmented reality (VR and AR respectively), as the technology is used more and more in healthcare, culture and research. LÄS MER

  4. 3. Faceted conformal antenna arrays analyzed with the uniform theory of diffraction

    Författare :Carina Marcus; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Faceted Conformal Antenna; High-frequency methods; Ray tracing;

    Sammanfattning : Faceted conformal antenna arrays are analyzed with the uniform theory of diffraction (UTD). Parameters such as mutual coupling, scattering parameters, isolated and embedded element patterns are calculated.A ray tracing algorithm for handling rays on a faceted surface, which is needed for the UTD calculations, is also described.. LÄS MER

  5. 4. Daylighting Systems : Development of Techniques for Optical Characterization and Performance Evaluation

    Författare :Annica M. Nilsson; Arne Roos; Claes-Göran Granqvist; Marie-Claude Dubois; Michael Köhl; Uppsala universitet; []
    Nyckelord :Optical spectroscopy; integrating sphere; ray tracing; light scattering; window physics; Venetian blinds; core daylighting; optical characterization; Teknisk fysik; Engineering Science;

    Sammanfattning : Successful integration of daylighting systems requires the ability to predict their performance for given climates. In this dissertation, a bottom-up approach is applied to evaluate the optical performance of a selection of daylighting systems. LÄS MER

  7. 5. Real-Time Algorithms and Intersection Test Methods for Computer Graphics

    Författare :Tomas Möller; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; texture; ray tracing; radiosity; color; three-dimensional graphics and realism; virtual reality; algorithms; shadowing; shading;

    Sammanfattning : In real-time computer graphics applications, at least three major forces are in conflict, namely, rendering speed, the level of realism, and interactivity. Therefore this thesis focuses on real-time algorithms that enhance the realism while maintaining high rendering speed, and on fast intersection test methods in order to speed up, for example, collision detection, picking processes and ray tracing. LÄS MER