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greg |
1.1 |
{ file created by makewarp }
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brickweave_u = if(brickweave_inbounds(Px,Py), brickweave_wu(Px,Py), Px) ;
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brickweave_v = if(brickweave_inbounds(Px,Py), brickweave_wv(Px,Py), Py) ;
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brickweave_tile_u = brickweave_wu(mod(Px,brickweave_mu),mod(Py,brickweave_mv)) ;
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brickweave_tile_v = brickweave_wv(mod(Px,brickweave_mu),mod(Py,brickweave_mv)) ;
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brickweave_match_u = brickweave_wu(tri(Px,brickweave_mu),tri(Py,brickweave_mv)) ;
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brickweave_match_v = brickweave_wv(tri(Px,brickweave_mu),tri(Py,brickweave_mv)) ;
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brickweave_wu(u,v) =
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linterp(frac(brickweave_iu(u)),
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linterp(frac(brickweave_iv(v)),
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brickweave_gu(floor(brickweave_iu(u)),floor(brickweave_iv(v))),
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brickweave_gu(floor(brickweave_iu(u)),ceil(brickweave_iv(v)))
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), linterp(frac(brickweave_iv(v)),
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brickweave_gu(ceil(brickweave_iu(u)),floor(brickweave_iv(v))),
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brickweave_gu(ceil(brickweave_iu(u)),ceil(brickweave_iv(v)))
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)
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) ;
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brickweave_wv(u,v) =
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linterp(frac(brickweave_iu(u)),
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linterp(frac(brickweave_iv(v)),
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brickweave_gv(floor(brickweave_iu(u)),floor(brickweave_iv(v))),
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brickweave_gv(floor(brickweave_iu(u)),ceil(brickweave_iv(v)))
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), linterp(frac(brickweave_iv(v)),
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brickweave_gv(ceil(brickweave_iu(u)),floor(brickweave_iv(v))),
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brickweave_gv(ceil(brickweave_iu(u)),ceil(brickweave_iv(v)))
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)
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) ;
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brickweave_iu(u) = 1 + 4 * u / brickweave_mu ;
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brickweave_iv(v) = 1 + 4 * v / brickweave_mv ;
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brickweave_inbounds(u,v) = and( and( u, brickweave_mu - u),
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and(v, brickweave_mv - v) ) ;
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brickweave_mu = 1.000000 ;
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brickweave_mv = 1.000000 ;
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brickweave_gu(i, j) = select( i,
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select( j,
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0.000000,
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0.000000,
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0.000000,
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0.000000,
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0.000000
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), select( j,
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0.248322,
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0.248322,
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0.248322,
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0.248322,
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0.248322
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), select( j,
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0.496644,
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0.496644,
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0.496644,
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0.496644,
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0.496644
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), select( j,
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0.744966,
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0.744966,
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0.744966,
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0.744966,
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0.744966
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), select( j,
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1.000000,
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1.000000,
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1.000000,
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1.000000,
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1.000000
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)
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) ;
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brickweave_gv(i, j) = select( i,
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select( j,
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1.000000,
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0.751678,
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0.503356,
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0.255034,
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0.000000
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), select( j,
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1.000000,
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0.751678,
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0.503356,
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0.255034,
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| 87 |
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0.000000
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), select( j,
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1.000000,
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0.751678,
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0.503356,
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| 92 |
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0.255034,
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| 93 |
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0.000000
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), select( j,
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1.000000,
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0.751678,
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0.503356,
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| 98 |
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0.255034,
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0.000000
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| 100 |
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), select( j,
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1.000000,
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0.751678,
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0.503356,
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0.255034,
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0.000000
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| 106 |
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)
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| 107 |
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) ;
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