Lines Matching defs:dwdy
279 inline float computeLodFromDerivates (float dudx, float dvdx, float dwdx, float dudy, float dvdy, float dwdy)
287 p = de::max(deFloatSqrt(dudx*dudx + dvdx*dvdx + dwdx*dwdx), deFloatSqrt(dudy*dudy + dvdy*dvdy + dwdy*dwdy));
295 float mw = de::max(deFloatAbs(dwdx), deFloatAbs(dwdy));
788 float dwdy = (m_lookupSpec.maxCoord[2]-m_lookupSpec.minCoord[2])*0.5f*proj*m_textureSpec.depth / (float)viewportSize[1];
789 m_lookupParams.lod = computeLodFromDerivates(dudx, 0.0f, dwdx, 0.0f, dvdy, dwdy);
