render layers in maya 2018

Render layers in 2018

Use groups in collections, this way you can easily swap out geo without having to update stuff each time someone changes something.

If a sub object needs changing, it could be worth putting that in a sub group too.

Use shader overrides rather than material overrides.

more UV crap

last post is a bit redundant in the age of UV-editing mode of Maya 2018, but with heavy meshes, the uv editor is dog slow.

polyEditUV -u 1 -v0 -scaleU 1.2 -scaleV 1;

Also this.

scaling UV code, around the centre of selection instead of 0,0

Original code stolen from
http://polycount.com/discussion/172364/maya-mel-scale-uv-shells-locally-script-for-anyone-that-wants-it


//store uvs into array
float $uvvalues[] =`polyEditUV -q`;
int $selSize = `size ($uvvalues)`;

//split array into U and V
float $Uarray[];
float $Varray[];

//copy U and V arrays with values
for($u = 0; $u < $selSize; $u++) {
          $Uarray[size($Uarray)] = $uvvalues[$u]; 
          $u=$u+1;
}

for($v = 1; $v < $selSize; $v++) {
          $Varray[size($Varray)] = $uvvalues[$v]; 
          $v=$v+1;
}

//sort arrays by coords and get size of array
$Uarray = `sort $Uarray`;
$Varray = `sort $Varray`;
int $UarraySize = `size ($Uarray)`;

//get max values
float $maxNuU = $Uarray[$UarraySize-1];
float $maxNuV = $Varray[$UarraySize-1];

//get min values
float $minNuU = $Uarray[0];
float $minNuV = $Varray[0];

//calculate centre values
float $middleU = ($maxNuU + $minNuU)/2;
float $middleV = ($maxNuV + $minNuV)/2;

polyEditUV -pu $middleU -pv $middleV -su .2 -sv .2;

some rapid rig specific scripts..sin waves on the leg/arm micro curves.

//used in Nike jelly legs

//CONTROLLER SETUP
//select controller for attributes to be added to, one by one. eg. left foot ctrl. then right.
string $footCtrl[]=`ls -sl`;

print $footCtrl[0];

//upper controls
addAttr -ln "o"  -at "enum" -en "--------" -keyable 1 $footCtrl[0];
setAttr -lock true ($footCtrl[0]+".o");
addAttr -ln "upper_amp" -keyable 1 -at double -dv 1 $footCtrl[0];
addAttr -ln "upper_sinPhase"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "upper_transY"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "upper_transZ"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "upper_rotoX"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "upper_rotoY"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "upper_rotoZ"  -keyable 1 -at double  -dv 0 $footCtrl[0];


//lower controls
addAttr -ln "oo"  -at "enum" -en "--------" -keyable 1 $footCtrl[0];
setAttr -lock true ($footCtrl[0]+".oo");
addAttr -ln "lower_amp" -keyable 1 -at double -dv 1 $footCtrl[0];
addAttr -ln "lower_sinPhase"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "lower_transY"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "lower_transZ"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "lower_rotoX"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "lower_rotoY"  -keyable 1 -at double  -dv 0 $footCtrl[0];
addAttr -ln "lower_rotoZ"  -keyable 1 -at double  -dv 0 $footCtrl[0];

//upper offsets
addAttr -ln "ooo" -at "enum" -en "--------" -keyable 1 $footCtrl[0];
setAttr -lock true ($footCtrl[0]+".ooo");
addAttr -ln "upper_y_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "upper_z_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "upper_xRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "upper_yRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "upper_zRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];

//lower offsets
addAttr -ln "oooo" -at "enum" -en "--------" -keyable 1 $footCtrl[0];
setAttr -lock true ($footCtrl[0]+".oooo");
addAttr -ln "lower_y_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "lower_z_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "lower_xRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "lower_yRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];
addAttr -ln "lower_zRot_sinOffset" -keyable 1 -at double -dv 0 $footCtrl[0];


___________________________________________________________________________
//CONNECT CONTROLLER TO THE MICRO CURVES
//select the micro curves, can select them all, set the leftLeg and rightLeg strings!

string $ctrlNameSel[]=`ls -sl`;
print $ctrlNameSel[0];
float $ctrlOffset=0;
float $ctrlAmp=1;
string $leftLeg="abc_lLegSwitchC";
string $rightLeg="abc_rLegSwitchC";
string $ctrlUse="none";
string $region="none";

//looping
for ($ctrl in $ctrlNameSel){
   
    if(`gmatch $ctrl "*1C*"`){
    //top Node, set offsetVal
    $ctrlOffset=0;
    $ctrlAmp=0.55;
   
    }
    else if(`gmatch $ctrl "*2C*"`){
    //middle Node, set offsetVal
    $ctrlOffset=1.65;
    $ctrlAmp=1;
    }
    else if (`gmatch $ctrl "*3C*"`){
    //bottom Node, set offsetVal
    $ctrlOffset=2.2;
    $ctrlAmp=0.4;
    }
   
    //WHICH PART
    if(`gmatch $ctrl "*_rLower*"`){
    $ctrlUse=$rightLeg;
    $region="lower"; 
    }
    else if(`gmatch $ctrl "*_rUpper*"`){
    $ctrlUse=$rightLeg;
    $region="upper";
    }
    if(`gmatch $ctrl "*_lLower*"`){
    $ctrlUse=$leftLeg;
    $region="lower"; 
    }
    else if(`gmatch $ctrl "*_lUpper*"`){
    $ctrlUse=$leftLeg;
    $region="upper";
    }
   
   
    select $ctrl;
   
   
    string $newGroup=`group -name ($ctrl+"_sinGrp")`;

    string $offsetVal="float $offset="+$ctrlOffset+";\n";
    string $ctrlAmpStr="float $amp="+$ctrlAmp+";\n";
    //translate
   
    //string $sinTYVal=$newGroup+".translateY=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+" +$ctrlUse+ "." +$region+ "_y_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_transY;\n";
    string $sinTYVal=$newGroup+".translateY=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+" +$ctrlUse+ "." +$region+ "_y_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_transY * "+$ctrlUse+"."+$region+"_amp;\n";
   
   
    string $sinTZVal=$newGroup+".translateZ=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+"+$ctrlUse+"."+$region+"_z_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_transZ * "+$ctrlUse+"."+$region+"_amp;\n";
   
    string $sinRXVal=$newGroup+".rotateX=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+"+$ctrlUse+"."+$region+"_xRot_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_rotoX * "+$ctrlUse+"."+$region+"_amp;\n";
    string $sinRYVal=$newGroup+".rotateY=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+"+$ctrlUse+"."+$region+"_yRot_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_rotoY * "+$ctrlUse+"."+$region+"_amp;\n";
    string $sinRZVal=$newGroup+".rotateZ=sin("+$ctrlUse+"."+$region+"_sinPhase+$offset+"+$ctrlUse+"."+$region+"_zRot_sinOffset)*$amp * "+$ctrlUse+"."+$region+"_rotoZ * "+$ctrlUse+"."+$region+"_amp;\n";
   
    string $expressionVal=$offsetVal + $ctrlAmpStr +$sinTYVal + $sinTZVal + $sinRXVal +$sinRYVal + $sinRZVal;
   
//   lower_xRot_sinOffset
   
    expression -s $expressionVal;
    select -cl;
}

______________________________________________________________________________

//REMOVE ATTRIBUTES FROM CONTROLLER

//select the controller (one by one)

//sets things to zero first, then deletes them

string $footCtrl[]=`ls -sl`;

print $footCtrl[0];

//remove upper controls, set to 0

setAttr -lock false ($footCtrl[0]+".o");

deleteAttr -at "o";

setAttr ($footCtrl[0]+".upper_amp") 0;

deleteAttr -at "upper_amp";

deleteAttr -at "upper_sinPhase";

deleteAttr -at "upper_transY";

deleteAttr -at "upper_transZ"; 

deleteAttr -at "upper_rotoX";

deleteAttr -at "upper_rotoY";  

deleteAttr -at "upper_rotoZ";

//lower controls

setAttr -lock false ($footCtrl[0]+".oo");

deleteAttr -at "oo";

setAttr ($footCtrl[0]+".lower_amp") 0;

deleteAttr -at "lower_amp"; 

deleteAttr -at "lower_sinPhase";

deleteAttr -at "lower_transY"; 

deleteAttr -at "lower_transZ"; 

deleteAttr -at "lower_rotoX";

deleteAttr -at "lower_rotoY";

deleteAttr -at "lower_rotoZ";  

//upper offsets

setAttr -lock false ($footCtrl[0]+".ooo");

deleteAttr -at "ooo";

deleteAttr -at "upper_y_sinOffset";

deleteAttr -at "upper_z_sinOffset";

deleteAttr -at "upper_xRot_sinOffset"; 

deleteAttr -at "upper_yRot_sinOffset";

deleteAttr -at "upper_zRot_sinOffset";

//lower offsets

setAttr -lock false ($footCtrl[0]+".oooo");

deleteAttr -at "oooo";

deleteAttr -at "lower_y_sinOffset";

deleteAttr -at "lower_z_sinOffset"; 

deleteAttr -at "lower_xRot_sinOffset"; 

deleteAttr -at "lower_yRot_sinOffset";

deleteAttr -at "lower_zRot_sinOffset";

__________________________________________________________________________

//DELETE SIN GROUPS FROM THE RIG

//just run it, no need to select (deletes all sin groups though)

string $ctrlSelected[]=`ls  "*_sinGrp*"`;

for($group in $ctrlSelected){

    select $group;

    print ($group+"\n");

    ungroup;

     

}