Pipeline LOD-chain (based on original asset)

This example executes Simplygon three times in a loop, where each optimization (in this case Reduction) is based on the original asset. This is accomplished by simply overriding the ReductionTargetTriangleRatio each loop before sending the asset off to Simplygon.

 // load an asset
file -f -options "v=0;" -ignoreVersion -typ "mayaBinary" -o "D:/Assets/SomeAsset.mb";

// select everything in scene
select -all;

// load previously saved pipeline
$reductionPipeline = `SimplygonPipeline -l "D:/Pipelines/reductionPipeline.json"`;

// override triangle ratio to 100%
$bResult = `SimplygonPipeline -ss "ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio" -v 1.0 $reductionPipeline`;

// loop 3 times,
// 1 - reduce original asset to 100 - 25 = 75% (LOD1)
// 2 - reduce original asset to 75 - 25 = 50% (LOD2)
// 3 - reduce original asset to 50 - 25 = 25% (LOD3)
for( $i = 0; $i < 3; ++$i )
{
    // fetch current triangle ratio
    $reductionTargetTriangleRatio = `SimplygonPipeline -gs "ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio" $reductionPipeline`;

    // subtract triangle ratio by 25%
    $bResult = `SimplygonPipeline -ss "ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio" -v ($reductionTargetTriangleRatio - 0.25) $reductionPipeline`;

    // execute pipeline on selection,
    // returns result to Maya once completed
    Simplygon -so $reductionPipeline;
}

// clear all pipelines
SimplygonPipeline -cl;

import maya.cmds as cmds

# load an asset
cmds.file('D:/Assets/SomeAsset.mb', i = True, mergeNamespacesOnClash = True, namespace = ':', importFrameRate = True)

# select everything in scene
cmds.select(all = True)

# load previously saved pipeline
reductionPipeline = cmds.SimplygonPipeline(l = 'D:/Pipelines/reductionPipeline.json')

# override triangle ratio to 100%
bResult = cmds.SimplygonPipeline(reductionPipeline, ss = 'ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio', v = 1.0)

# loop 3 times,
# 1 - reduce original asset to 100 - 25 = 75% (LOD1)
# 2 - reduce original asset to 75 - 25 = 50% (LOD2)
# 3 - reduce original asset to 50 - 25 = 25% (LOD3)
for i in range(3):
    # fetch current triangle ratio
    reductionTargetTriangleRatio = cmds.SimplygonPipeline(reductionPipeline, gs = 'ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio')

    # subtract triangle ratio by 25%
    bResult = cmds.SimplygonPipeline(reductionPipeline, ss = 'ReductionProcessor/ReductionSettings/ReductionTargetTriangleRatio', v = (reductionTargetTriangleRatio - 0.25))

    # execute pipeline on selection,
    # returns result to Maya once completed
    cmds.Simplygon(so = reductionPipeline)

# clear all pipelines
cmds.SimplygonPipeline(cl = True)