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Lines Matching refs:dudy

1636                   const float dudy, const float dvdy,
1650    float uy = dudy * scaling;
1831    float dudy = (s[QUAD_TOP_LEFT]     - s[QUAD_BOTTOM_LEFT]) * s_to_u;
1840       float Py2 = dudy * dudy + dvdy * dvdy;
1898                         dudx, dvdx, dudy, dvdy, rgba);