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Uso de MEL (Maya Embedded Language)

Para: • Números aleatorios• Fractales

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Abrir MEL

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MEL (Maya Embedded Language)

En el Script Editor. File -> Open (O copiar y pegar el script en la

parte de abajo del Script Editor). Seleccionar la parte del texto a ejecutar y

oprimir el botón:

Practicar con el script: “Aleatorios.mel”

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sphere;rename nurbsSphere1 a1;select a1;duplicate -rr;for($i=1; $i<=9; ++$i)

duplicate -rr -st;

for($i=1; $i<=10; ++$i){

select("a"+$i);$x=rand(-5,5);print $x;print " ";$y=rand(1,10);print $y;print " ";$z=rand(-5,5);print $z;print "\r";move $x $y $z;select -d;

};

for($i=1;$i<=10;$i++){

$x = rand(1,1000);select ("a"+$i);rotate $x $x $x;select -d;

};

Aleatorios.mel

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Aleatorios.mel

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Mandelbrot.melparte 1/3

//All the COLOURS used within the Mandelbrot set.createAndAssignShader lambert "";setAttr "lambert2.color" -type double3 0.0 0.0 1.0 ; //bluecreateAndAssignShader lambert "";setAttr "lambert3.color" -type double3 0.0 0.0 0.0 ; //blackcreateAndAssignShader lambert "";setAttr "lambert4.color" -type double3 1.0 0.0 1.0 ; //pinkcreateAndAssignShader lambert "";setAttr "lambert5.color" -type double3 1.0 1.0 1.0 ; //whitecreateAndAssignShader lambert "";setAttr "lambert6.color" -type double3 1.0 1.0 0.0 ; //yellowcreateAndAssignShader lambert "";setAttr "lambert7.color" -type double3 0.0 1.0 0.0 ; //greencreateAndAssignShader lambert "";setAttr "lambert8.color" -type double3 0.0 1.0 1.0 ; //light blue

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int $iter;int $SIZE = 100; //number of spheres to be generated in x and y float $LEFT = -2.0; //constant determining the left most co-ordinatefloat $RIGHT = 1.0; //constant determining the right most co-ordinatefloat $TOP = 1.0; //constant determining the upper most co-ordinatefloat $BOTTOM = -1.0; //constant determining the lower most co-ordinate

float $x, $y, $count; float $zr, $zi, $cr, $ci; float $rsquared, $isquared;

Mandelbrot.melparte 2/3

for ($y = 0; $y < $SIZE; $y++) { for ($x = 0; $x < $SIZE; $x++) { $zr = 0.0; $zi = 0.0; $cr = $LEFT + $x * ($RIGHT - $LEFT) / $SIZE; $ci = $TOP + $y * ($BOTTOM - $TOP) / $SIZE; $rsquared = $zr * $zr; $isquared = $zi * $zi;

for ($count = 0; $rsquared + $isquared <= 4.0 && $count < 200; $count++)

{ $zi = $zr * $zi * 2 + $ci;

$zr = $rsquared - $isquared + $cr; $rsquared = $zr * $zr; $isquared = $zi * $zi;

if ($rsquared + $isquared >= 4.0){ $iter = $count; break; }

}

COLOREA CADA ESFERA } }

Mandelbrot.melparte 3/3

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if ($iter >= 0 && $iter <= 1){ sphere -p $x 0 $y -r 0.4;sets -e -forceElement lambert8SG;}

if ($iter > 1 && $iter <= 2){sphere -p $x 0 $y -r 0.5;sets -e -forceElement lambert7SG;}

if ($iter > 2 && $iter <= 3){ sphere -p $x 0 $y -r 0.6;sets -e -forceElement lambert6SG;}

if ($iter > 3 && $iter <= 5){ sphere -p $x 0 $y -r 0.7;sets -e -forceElement lambert5SG;}

if ($iter > 5 && $iter <= 10){ sphere -p $x 0 $y -r 0.8;sets -e -forceElement lambert4SG;}

if ($iter > 10 && $iter < 200){ sphere -p $x 0 $y -r 0.8;

sets -e -forceElement lambert2SG;}

if ($rsquared + $isquared <= 4.0 && $iter = 200){ sphere -p $x 0 $y -r 0.8;sets -e -forceElement lambert3SG;}

Cál

culo

s co

n ca

da e

sfer

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Variable $iter guarda el número de iteración en que x2 + y2 >= 4

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Planos alternos para el Conjunto de Mandelbrot

/121 nn zz

Plano 1/m

Se itera esta función:

mm /1/1