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struct Test_GuidesFromMeshModifier
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(
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function Test_UpdateGuidesOnMeshSelectionChange =
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(
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-- Create a 2x1 plane and select one of the faces but not the other
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distributionObject = convertToPoly(Plane lengthsegs:2 widthsegs:1)
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polyop.setFaceSelection distributionObject #{1}
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max modify mode
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-- Setup guides with surface comb
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select distributionObject
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guidesFromSurfaceModifier = Ox_Guides_from_Surface()
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guidesFromSurfaceModifier.method = 4
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guidesFromSurfaceModifier.numSegs = 2
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guidesFromSurfaceModifier.useSubSel = true
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modPanel.addModToSelection guidesFromSurfaceModifier
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-- Only 4 guides should be generated because sub-selection is on
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guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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myGuides = ( guidesCopy.GetGuides() ).AsHair()
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EAssert.AreEqual 4 (myGuides.NumRoots())
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delete guidesCopy
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-- Go out of sub-object mode
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max create mode
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-- Select the second face of the distribution mesh, this should result in extra 2 guides being generated
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polyop.setFaceSelection distributionObject #{1,2}
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guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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myGuides = ( guidesCopy.GetGuides() ).AsHair()
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EAssert.AreEqual 6 (myGuides.NumRoots())
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delete guidesCopy
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-- Cleanup
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delete distributionObject
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),
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-- Make sure that changing distribution map updates the roots when not in modify mode
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function Test_RootUpdateOnDistributionMapChangeWhenInCreateMode =
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(
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distributionObject = Plane lengthsegs:1 widthsegs:1
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max modify mode
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-- Setup guides with surface comb
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select distributionObject
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guidesFromSurfaceModifier = Ox_Guides_from_Surface()
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guidesFromSurfaceModifier.method = 4
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guidesFromSurfaceModifier.numSegs = 2
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guidesFromSurfaceModifier.uvChannel = 1
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modPanel.addModToSelection guidesFromSurfaceModifier
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distributionMap = Checker()
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guidesFromSurfaceModifier.distrMap = distributionMap
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-- Record number of roots at present
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guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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myGuides = ( guidesCopy.GetGuides() ).AsHair()
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initialRootCount = (myGuides.NumRoots())
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delete guidesCopy
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-- Go out of sub-object mode
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max create mode
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-- Change the checker map to be all black
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distributionMap.color1 = color 255 255 255
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-- Number of generated guides should have changed
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guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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myGuides = ( guidesCopy.GetGuides() ).AsHair()
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EAssert.AreNotEqual initialRootCount (myGuides.NumRoots())
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delete guidesCopy
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-- Cleanup
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delete distributionObject
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),
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function Test_DisplacementMapAndOffset =
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(
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distributionObject = Plane lengthsegs:1 widthsegs:1
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max modify mode
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-- Setup guides with surface comb
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select distributionObject
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guidesFromSurfaceModifier = Ox_Guides_from_Surface()
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TestUtilities.SetGuidesFromMeshDefaults guidesFromSurfaceModifier
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guidesFromSurfaceModifier.method = 2
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guidesFromSurfaceModifier.numSegs = 2
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guidesFromSurfaceModifier.guideLength = 10
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guidesFromSurfaceModifier.randomness = 0
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modPanel.addModToSelection guidesFromSurfaceModifier
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-- Without Displacement
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guidesFromSurfaceModifier.displacementMap = undefined
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guidesFromSurfaceModifier.displacementOffset = 0
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guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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myHair = ( guidesCopy.GetGuides() ).AsHair()
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ZeroDisplaceTip = 0
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ZeroDisplaceRoot = 0
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for i = 0 to ( myHair.NumRoots() - 1 ) do
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(
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hairRootPoint = myHair.GetPointT i 0
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hairTipPoint = myHair.GetPointT i 1
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ZeroDisplaceTip += hairTipPoint.z
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ZeroDisplaceRoot += hairRootPoint.z
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)
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print ZeroDisplaceRoot
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EAssert.AreNearEqual 0 ( ZeroDisplaceRoot )
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--With Displacement (with middle grey map and double Guide's Length as offset, it should be at the top of each strands without displacement)
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DisplacementMap = Checker ()
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DisplacementMap.color1 = DisplacementMap.color2 = (color 255 255 255) / 2
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guidesFromSurfaceModifier.displacementMap = DisplacementMap
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guidesFromSurfaceModifier.displacementOffset = guidesFromSurfaceModifier.guideLength * 2
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guidesCopy2 = instance distributionObject
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convertTo guidesCopy2 GuidesObject
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myHair2 = ( guidesCopy2.GetGuides() ).AsHair()
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DisplaceRoot = 0
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for i = 0 to ( myHair2.NumRoots() - 1 ) do
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(
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hairRootPoint = myHair2.GetPointT i 0
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DisplaceRoot += hairRootPoint.z
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)
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EAssert.AreNearEqual ZeroDisplaceTip DisplaceRoot
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-- Cleanup
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delete distributionObject
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delete guidesCopy
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delete guidesCopy2
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),
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function Test_DisplacementMapChannels =
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(
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-- Create a plane with 1x1 segments (so that there are are no vertices going exactly down the middle)
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local distributionObject = Plane lengthsegs:1 widthsegs:1
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max modify mode
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-- Create Mapping Channels
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select distributionObject
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for i = 1 to 2 do
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(
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uvwMapModifier = Uvwmap ()
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uvwMapModifier.mapChannel = i
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uvwMapModifier.length = distributionObject.length / i
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uvwMapModifier.width = distributionObject.width / i
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modPanel.addModToSelection uvwMapModifier
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)
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-- Setup guides with surface comb
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select distributionObject
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guidesFromSurfaceModifier = Ox_Guides_from_Surface()
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modPanel.addModToSelection guidesFromSurfaceModifier
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-- Set default parameters
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guidesFromSurfaceModifier.method = 2
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guidesFromSurfaceModifier.uvChannel = 1
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guidesFromSurfaceModifier.count = 100
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guidesFromSurfaceModifier.guideLength = 10
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guidesFromSurfaceModifier.randomness = 0
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guidesFromSurfaceModifier.NumSegs = 2
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local DisplacementMap = Checker ()
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DisplacementMap.color1 = black
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DisplacementMap.color2 = white
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guidesFromSurfaceModifier.displacementMap = DisplacementMap
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guidesFromSurfaceModifier.displacementOffset = guidesFromSurfaceModifier.guideLength
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--Bake 1-st Mapping Channel
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guidesFromSurfaceModifier.uvChannel = 1
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local guidesCopy1 = instance distributionObject
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convertTo guidesCopy1 GuidesObject
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local myHair1 = ( guidesCopy1.GetGuides() ).AsHair()
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--Bake 2-nd Mapping Channel
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guidesFromSurfaceModifier.uvChannel = 2
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local guidesCopy2 = instance distributionObject
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convertTo guidesCopy2 GuidesObject
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local myHair2 = ( guidesCopy2.GetGuides() ).AsHair()
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--Hairs Count should be the same
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EAssert.AreEqual ( myHair1.NumRoots() ) ( myHair2.NumRoots() )
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--Check for matching, if Mapping channel isn't affected, 100% points will be at the same position
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matchedPoints = 0
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for i = 0 to ( myHair1.NumRoots() - 1 ) do
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(
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RootPoint1 = myHair1.GetPointT i 0
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RootPoint2 = myHair2.GetPointT i 0
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if ( RootPoint1 == RootPoint2 ) then
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(
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matchedPoints += 1
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)
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)
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EAssert.AreNotEqual matchedPoints ( myHair1.NumRoots() )
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-- Cleanup
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delete distributionObject
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delete guidesCopy1
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delete guidesCopy2
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),
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-- Tests that guides are positioned correctly when topology orientation option isn't used
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function Test_GuidePlacementWithTopologyOrientationOff =
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(
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-- Create a plane with 1x1 segments (so that there are are no vertices going exactly down the middle)
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local distributionObject = Plane lengthsegs:1 widthsegs:1
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local distributionObjectCopy = convertto (copy distributionObject) mesh
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max modify mode
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-- Setup guides with vertex distributioon and topology orientation off
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select distributionObject
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local guidesFromSurfaceModifier = Ox_Guides_from_Surface()
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TestUtilities.SetGuidesFromMeshDefaults guidesFromSurfaceModifier
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guidesFromSurfaceModifier.method = 4
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guidesFromSurfaceModifier.topoOrient = off
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modPanel.addModToSelection guidesFromSurfaceModifier
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-- Make sure vertices are not at the origin
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local guidesCopy = instance distributionObject
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convertTo guidesCopy GuidesObject
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local myGuides = ( guidesCopy.GetGuides() ).AsHair()
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EAssert.ArePointsNearEqual (getvert distributionObjectCopy 3) (myGuides.GetPointT 0 0)
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EAssert.ArePointsNearEqual (getvert distributionObjectCopy 1) (myGuides.GetPointT 1 0)
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EAssert.ArePointsNearEqual (getvert distributionObjectCopy 4) (myGuides.GetPointT 2 0)
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EAssert.ArePointsNearEqual (getvert distributionObjectCopy 2) (myGuides.GetPointT 3 0)
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-- Cleanup
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delete guidesCopy
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delete distributionObjectCopy
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delete distributionObject
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)
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)
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EUnit.AddTestClass Test_GuidesFromMeshModifier
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ok
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