翻訳と辞書 Words near each other ・ Geometry Festival ・ Geometry from the Land of the Incas ・ Geometry index ・ Geometry instancing ・ Geometry of binary search trees ・ Geometry of Fear ・ Geometry of interaction ・ Geometry of Love ・ Geometry of numbers ・ Geometry of roots of real polynomials ・ Geometry pipelines ・ Geometry prize ・ Geometry processing ・ Geometry Wars ・ Geomicrobiology ・ Geomipmapping ・ Geomitra ・ Geomitra delphinuloides ・ Geomitra grabhami ・ Geomitra moniziana ・ Geomitra tiarella ・ Geomium ・ Geommasan ・ Geommu ・ Geomodeller3D ・ Geomori ・ Geomorphic mapboard ・ Geomorphological division of Slovakia ・ Geomorphology ・ Geomorphology (journal) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Geomipmapping ： ウィキペディア英語版 Geomipmapping Geomipmapping or geometrical mipmapping is a real-time block-based terrain rendering algorithm developed by W.H. de Boer in 2000 that aims to reduce CPU processing time which is a common bottleneck in level of detail approaches to terrain rendering. Prior to geomipmapping, techniques such as quadtree rendering were used to divide the terrain into square tiles created by binary division with quadratically diminishing size. The subdivision step is typically performed on the CPU which creates a bottleneck as geometry commands are buffered to the GPU. Unlike quadtrees which send 1x1 polygon units to the GPU, to reduce the CPU processing time geomipmapping divides the terrain into grid-based tiles which are themselves regularly subdivided. Typically, a fixed number of vertex buffer objects (VBOs) are stored on the GPU at different grid resolutions, such as 10x10 and 20x20, and then placed at major terrain regions selectively chosen by the CPU. A vertex shader is then used to reposition the vertices for a given VBO, all on the GPU. Overall, this results in a major reduction in CPU processing, and reduced CPU-to-GPU bandwidth as the GPU then performs most of the work. Geoclipmaps and GPU raycasting are two other modern alternatives to geomipmapping for interactive rendering of terrain. == References == * de Boer, W.H., ''Fast Terrain Rendering using Geometrical Mipmapping'', in flipCode featured articles, October 2000. Available at http://www.flipcode.com/archives/Fast_Terrain_Rendering_Using_Geometrical_MipMapping.shtml. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Geomipmapping」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.