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Lines Matching refs:dvdy

1636                   const float dudy, const float dvdy,
1651    float vy = dvdy * scaling;
1833    float dvdy = (t[QUAD_TOP_LEFT]     - t[QUAD_BOTTOM_LEFT]) * t_to_v;
1840       float Py2 = dudy * dudy + dvdy * dvdy;
1898                         dudx, dvdx, dudy, dvdy, rgba);