def testUVs( self ) : m = IECore.MeshPrimitive.createPlane( IECore.Box2f( IECore.V2f( -1 ), IECore.V2f( 1 ) ) ) uvData = m["uv"].data with IECoreArnold.UniverseBlock( writable = True ) : n = IECoreArnold.NodeAlgo.convert( m ) uvs = arnold.AiNodeGetArray( n, "uvlist" ) self.assertEqual( uvs.contents.nelements, 4 ) uvIndices = arnold.AiNodeGetArray( n, "uvidxs" ) self.assertEqual( uvIndices.contents.nelements, 4 ) for i in range( 0, 4 ) : p = arnold.AiArrayGetPnt2( uvs, i ) self.assertEqual( arnold.AiArrayGetPnt2( uvs, i ), arnold.AtPoint2( uvData[i][0], uvData[i][1] ) ) self.assertEqual( arnold.AiArrayGetInt( uvIndices, i ), i )
def testAdditionalUVs(self):
m = IECore.MeshPrimitive.createPlane(
IECore.Box2f(IECore.V2f(-1), IECore.V2f(1)))
m["myMap_s"] = m["s"]
m["myMap_t"] = m["t"]
s, t = m["s"].data, m["t"].data
with IECoreArnold.UniverseBlock():
n = IECoreArnold.NodeAlgo.convert(m)
uvs = arnold.AiNodeGetArray(n, "myMap")
self.assertEqual(uvs.contents.nelements, 4)
uvIndices = arnold.AiNodeGetArray(n, "myMapidxs")
self.assertEqual(uvIndices.contents.nelements, 4)
for i in range(0, 4):
p = arnold.AiArrayGetPnt2(uvs, i)
self.assertEqual(arnold.AiArrayGetPnt2(uvs, i),
arnold.AtPoint2(s[i], 1 - t[i]))
self.assertEqual(arnold.AiArrayGetInt(uvIndices, i), i)
def testIndexedUVs( self ) : m = IECore.MeshPrimitive.createPlane( IECore.Box2f( IECore.V2f( -1 ), IECore.V2f( 1 ) ) ) m["uv"] = IECore.PrimitiveVariable( IECore.PrimitiveVariable.Interpolation.FaceVarying, m["uv"].data, IECore.IntVectorData( [ 0, 3, 1, 2 ] ) ) uvData = m["uv"].data uvIds = m["uv"].indices with IECoreArnold.UniverseBlock( writable = True ) : n = IECoreArnold.NodeAlgo.convert( m ) uvs = arnold.AiNodeGetArray( n, "uvlist" ) self.assertEqual( uvs.contents.nelements, 4 ) uvIndices = arnold.AiNodeGetArray( n, "uvidxs" ) self.assertEqual( uvIndices.contents.nelements, 4 ) for i in range( 0, 4 ) : aiUv = arnold.AiArrayGetPnt2( uvs, i ) aiUVId = arnold.AiArrayGetInt( uvIndices, i ) aiIndexedUV = arnold.AiArrayGetPnt2( uvs, aiUVId ) self.assertEqual( aiUVId, uvIds[i] ) self.assertEqual( aiUv, arnold.AtPoint2( uvData[i][0], uvData[i][1] ) ) self.assertEqual( aiIndexedUV, arnold.AtPoint2( uvData[uvIds[i]][0], uvData[uvIds[i]][1] ) )