公开(公告)号：US20050219256A1

公开(公告)日：2005-10-06

申请号：US10812492

申请日：2004-03-30

申请人： Walter Donovan ,  Paul Heckbert

发明人： Walter Donovan ,  Paul Heckbert

IPC分类号： G09G5/00

CPC分类号： G06T15/04

摘要： Shortening a footprint is a technique to reduce the number of texture samples anisotropically filtered to determine a texture value associated with a graphics fragment. Reducing the number of texture samples anisotropically filtered reduces the number of texture samples read and simplifies the filter computation. Programmable knobs are used to shorten the footprint of a pixel in texture space thereby reducing the number of texture samples used during anisotropic filtering. These knobs permit a user to determine a balance between improved texture map performance and anisotropic texture filtering quality.

摘要翻译： 减少占位面积是减少各向异性过滤以确定与图形片段相关联的纹理值的纹理样本数量的技术。 减少各向异性滤波的纹理样本数减少了读取的纹理样本的数量，并简化了滤波器计算。 可编程旋钮用于缩短纹理空间中像素的占地面积，从而减少各向异性过滤期间使用的纹理样本数。 这些旋钮允许用户确定改进的纹理贴图性能和各向异性纹理过滤质量之间的平衡。