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struct Test_SurfaceCombModifier
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(
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-- Tests that sink weights have an effect on resulting strand orientation
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function Test_SinkWeights =
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(
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-- Create a plane with 1x1 segments so we have 4 vertices all together
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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 = 2
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guidesFromSurfaceModifier.count = 10
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guidesFromSurfaceModifier.numSegs = 2
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modPanel.addModToSelection guidesFromSurfaceModifier
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surfaceCombInstance = Ox_Surface_Comb()
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modPanel.addModToSelection surfaceCombInstance
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-- Create two sinks on either end of the distribution mesh, pointing away from one another
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surfaceCombInstance.CreateSinkAtCoordinate 2 [20,0,0] 0 [0,0,1]
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surfaceCombInstance.CreateSinkAtCoordinate 2 [-20,0,0] 1 [1,0,0]
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surfaceCombInstance.SetSinkStrength 0 10
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surfaceCombInstance.SetSinkStrength 1 1
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-- Record current tip positions
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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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guide1Tip = myGuides.GetPoint 4 1
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guide2Tip = myGuides.GetPoint 5 1
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guide3Tip = myGuides.GetPoint 6 1
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guide4Tip = myGuides.GetPoint 7 1
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delete guidesCopy
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-- Change the strengths of the sinks and compare the new tip positions. They should be different.
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surfaceCombInstance.SetSinkStrength 0 0
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surfaceCombInstance.SetSinkStrength 1 100
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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 guide1Tip ( myGuides.GetPoint 4 1 )
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EAssert.AreNotEqual guide2Tip ( myGuides.GetPoint 5 1 )
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EAssert.AreNotEqual guide3Tip ( myGuides.GetPoint 6 1 )
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EAssert.AreNotEqual guide4Tip ( myGuides.GetPoint 7 1 )
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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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)
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EUnit.AddTestClass Test_SurfaceCombModifier
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ok
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