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  • real time rendering method on spherical coordinate system using convex hull
    대한전자공학회 기타 간행물, 2010
    Co-Authors: Namjung Kim, Hyunki Hong
    Abstract:

    This paper presents a novel real-time rendering algorithm based on spherical coordinate system of the object using convex hull. While OpenGL rendering pipeline touches all vertices of an object, the proposed method takes account the only visible vertices by examining the visible triangles of the object. In order to determine the visible areas of the object in its spherical coordinate representation, the proposed method uses 3D Geometric Relation of 6 plane equations of the camera frustum and the bounding sphere. In addition, we compute the convex hull of the object and its maximum side factors for hidden surface removal. Simulation results showed that the proposed rendering algorithm achieve an efficient rendering performance.

  • improved rendering on spherical coordinate system using convex hull
    Journal of Korea Game Society, 2010
    Co-Authors: Namjung Kim, Hyunki Hong
    Abstract:

    This paper presents a novel real-time rendering algorithm based on spherical coordinate system of the object using convex hull. While OpenGL rendering pipeline touches all vertices of an object, the proposed method takes account the only visible vertices by examining the visible triangles of the object. In order to determine the visible areas of the object in its spherical coordinate representation, the proposed method uses 3D Geometric Relation of 6 plane equations of the camera frustum and the bounding sphere of the object. In addition, we compute the convex hull of the object and its maximum side factors for hidden surface removal. Simulation results showed that the quality of result image is almost same compared to original image and rendering performance is greatly improved.