def testSeparableCodePath(self):
# Make sure that there is no inordinate difference between the special optimized code
# when rotation is 0 and the general code
checker1 = GafferImage.Checkerboard()
checker1["size"].setValue(imath.V2f(35, 121))
checker1["transform"]["translate"].setValue(
imath.V2f(214.849503, -199.025101))
checker1["transform"]["scale"].setValue(
imath.V2f(7.1413002, 0.640600026))
checker2 = GafferImage.Checkerboard()
checker2["size"].setValue(imath.V2f(35, 121))
checker2["transform"]["translate"].setValue(
imath.V2f(214.849503, -199.025101))
checker2["transform"]["scale"].setValue(
imath.V2f(7.1413002, 0.640600026))
checker2["transform"]["rotate"].setValue(1e-6)
diff = GafferImage.Merge()
diff["in"][0].setInput(checker2["out"])
diff["in"][1].setInput(checker1["out"])
diff["operation"].setValue(GafferImage.Merge.Operation.Difference)
stats = GafferImage.ImageStats()
stats["in"].setInput(diff["out"])
stats["area"].setValue(
imath.Box2i(imath.V2i(0, 0), imath.V2i(1920, 1080)))
self.assertGreater(stats["max"].getValue()[0],
0) # Should produce some change
self.assertLess(stats["max"].getValue()[0],
1e-4) # But nothing visible
self.assertLess(stats["average"].getValue()[0], 1e-6)
def testLayerAffectsChannelNames(self):
c = GafferImage.Checkerboard()
cs = GafferTest.CapturingSlot(c.plugDirtiedSignal())
c["layer"].setValue("diffuse")
self.assertTrue(c["out"]["channelNames"] in set([x[0] for x in cs]))
def testFormatDependencies(self):
c = GafferImage.Checkerboard()
self.assertEqual(
c.affects(c["format"]["pixelAspect"]),
[c["out"]["format"]],
)
self.assertEqual(c.affects(c["format"]["displayWindow"]["min"]["x"]),
[c["out"]["format"], c["out"]["dataWindow"]])
self.assertEqual(
c.affects(c["colorA"]["r"]),
[c["out"]["channelData"]],
)
self.assertEqual(
c.affects(c["colorB"]["r"]),
[c["out"]["channelData"]],
)
self.assertEqual(
c.affects(c["size"]["x"]),
[c["out"]["channelData"]],
)
def mergePerf(self, operation, mismatch):
r = GafferImage.Checkerboard("Checkerboard")
r["format"].setValue(GafferImage.Format(4096, 3112, 1.000))
# Make the size of the checkerboard not a perfect multiple of tile size
# in case we ever fix Checkerboard to notice when tiles are repeated
# and return an identical hash ( which would invalidate this performance
# test )
r["size"].setValue(imath.V2f(64.01))
alphaShuffle = GafferImage.Shuffle()
alphaShuffle["in"].setInput(r["out"])
alphaShuffle["channels"].addChild(
GafferImage.Shuffle.ChannelPlug("A", "R"))
transform = GafferImage.Offset()
transform["in"].setInput(alphaShuffle["out"])
if mismatch:
transform["offset"].setValue(imath.V2i(4000, 3000))
else:
transform["offset"].setValue(imath.V2i(26, 42))
merge = GafferImage.Merge()
merge["operation"].setValue(operation)
merge["in"][0].setInput(alphaShuffle["out"])
merge["in"][1].setInput(transform["out"])
# Precache upstream network, we're only interested in the performance of Merge
GafferImageTest.processTiles(alphaShuffle["out"])
GafferImageTest.processTiles(transform["out"])
with GafferTest.TestRunner.PerformanceScope():
GafferImageTest.processTiles(merge["out"])
def testGlobalConvenienceMethods(self):
checker = GafferImage.Checkerboard()
metadata = GafferImage.ImageMetadata()
metadata["in"].setInput(checker["out"])
metadata["metadata"].addChild(Gaffer.NameValuePlug("test", 10))
self.assertEqual(metadata["out"].format(),
metadata["out"]["format"].getValue())
self.assertEqual(metadata["out"].formatHash(),
metadata["out"]["format"].hash())
self.assertEqual(metadata["out"].dataWindow(),
metadata["out"]["dataWindow"].getValue())
self.assertEqual(metadata["out"].dataWindowHash(),
metadata["out"]["dataWindow"].hash())
self.assertEqual(metadata["out"].channelNames(),
metadata["out"]["channelNames"].getValue())
self.assertFalse(metadata["out"].channelNames().isSame(
metadata["out"]["channelNames"].getValue(_copy=False)))
self.assertTrue(metadata["out"].channelNames(_copy=False).isSame(
metadata["out"]["channelNames"].getValue(_copy=False)))
self.assertEqual(metadata["out"].channelNamesHash(),
metadata["out"]["channelNames"].hash())
self.assertEqual(metadata["out"].metadata(),
metadata["out"]["metadata"].getValue())
self.assertFalse(metadata["out"].metadata().isSame(
metadata["out"]["metadata"].getValue(_copy=False)))
self.assertTrue(metadata["out"].metadata(_copy=False).isSame(
metadata["out"]["metadata"].getValue(_copy=False)))
self.assertEqual(metadata["out"].metadataHash(),
metadata["out"]["metadata"].hash())
def testChannelNamesHash(self):
c = GafferImage.Checkerboard()
h1 = c["out"]["channelNames"].hash()
c["colorA"].setValue(imath.Color4f(1, 0.5, 0.25, 1))
h2 = c["out"]["channelNames"].hash()
self.assertEqual(h1, h2)
def testEnableBehaviour(self):
c = GafferImage.Checkerboard()
self.assertTrue(c.enabledPlug().isSame(c["enabled"]))
self.assertEqual(c.correspondingInput(c["out"]), None)
self.assertEqual(c.correspondingInput(c["colorA"]), None)
self.assertEqual(c.correspondingInput(c["colorB"]), None)
self.assertEqual(c.correspondingInput(c["size"]), None)
self.assertEqual(c.correspondingInput(c["format"]), None)
def testFormatHash(self):
# Check that the data hash change when the format does.
c = GafferImage.Checkerboard()
c["format"].setValue(GafferImage.Format(2048, 1156, 1.))
h1 = c["out"].channelData("R", imath.V2i(0)).hash()
c["format"].setValue(GafferImage.Format(1920, 1080, 1.))
h2 = c["out"].channelData("R", imath.V2i(0)).hash()
self.assertEqual(h1, h2)
def testSerialisationWithZeroAlpha(self):
s = Gaffer.ScriptNode()
s["c"] = GafferImage.Checkerboard()
s["c"]["colorA"].setValue(imath.Color4f(0, 1, 0, 0))
s2 = Gaffer.ScriptNode()
s2.execute(s.serialise())
self.assertEqual(s2["c"]["colorA"].getValue(),
imath.Color4f(0, 1, 0, 0))
def testTranslationPerformance(self):
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(3000, 3000))
transform = GafferImage.ImageTransform()
transform["in"].setInput(checker["out"])
transform["transform"]["translate"].setValue(imath.V2f(2.2))
with GafferTest.TestRunner.PerformanceScope():
GafferImageTest.processTiles(transform["out"])
def testUpsizingPerformance(self):
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(1000, 1000))
transform = GafferImage.ImageTransform()
transform["in"].setInput(checker["out"])
transform["transform"]["scale"].setValue(imath.V2f(3))
with GafferTest.TestRunner.PerformanceScope():
GafferImageTest.processTiles(transform["out"])
def testRotationAndScalingPerformance(self):
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(3000, 3000))
transform = GafferImage.ImageTransform()
transform["in"].setInput(checker["out"])
transform["transform"]["pivot"].setValue(imath.V2f(1500))
transform["transform"]["rotate"].setValue(2.5)
transform["transform"]["scale"].setValue(imath.V2f(0.75))
with GafferTest.TestRunner.PerformanceScope():
GafferImageTest.processTiles(transform["out"])
def testFilterWidth(self):
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(GafferImage.Format(128, 128))
checkerboard["size"]["x"].setValue(1)
checkerboard["size"]["y"].setValue(1)
checkerboard["transform"]["scale"]["x"].setValue(200)
checkerboard["transform"]["scale"]["y"].setValue(200)
sampler = GafferImage.ImageSampler()
sampler["image"].setInput(checkerboard["out"])
sampler["pixel"].setValue(imath.V2f(101, 54))
self.assertAlmostEqual(checkerboard["colorB"].getValue().r,
sampler["color"].getValue().r,
delta=0.001)
def testConcatenationPerformance1(self):
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(3000, 3000))
transform1 = GafferImage.ImageTransform("Transform1")
transform1["in"].setInput(checker["out"])
transform1["transform"]["pivot"].setValue(imath.V2f(1500))
transform1["transform"]["rotate"].setValue(2.5)
transform2 = GafferImage.ImageTransform("Transform2")
transform2["in"].setInput(transform1["out"])
transform2["transform"]["translate"].setValue(imath.V2f(10))
with GafferTest.TestRunner.PerformanceScope():
GafferImageTest.processTiles(transform2["out"])
def testMonitorParallelProcessTiles(self):
numTilesX = 50
numTilesY = 50
c = GafferImage.Checkerboard()
c["format"].setValue(
GafferImage.Format(
numTilesX * GafferImage.ImagePlug.tileSize(),
numTilesY * GafferImage.ImagePlug.tileSize(),
))
with Gaffer.PerformanceMonitor() as m:
GafferImageTest.processTiles(c["out"])
self.assertEqual(
m.plugStatistics(c["out"]["channelData"]).computeCount,
numTilesX * numTilesY * 4)
def testExpectedResult(self):
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(GafferImage.Format(128, 128))
checkerboard["size"]["x"].setValue(1)
checkerboard["size"]["y"].setValue(1)
checkerboard["transform"]["rotate"].setValue(45)
checkerboard["transform"]["scale"]["x"].setValue(200)
checkerboard["transform"]["scale"]["y"].setValue(10)
reader = GafferImage.ImageReader()
reader["fileName"].setValue(
os.path.dirname(__file__) + "/images/GafferChecker.exr")
self.assertImagesEqual(checkerboard["out"],
reader["out"],
ignoreMetadata=True,
maxDifference=0.001)
def testChannelData(self):
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(
GafferImage.Format(imath.Box2i(imath.V2i(0), imath.V2i(511)), 1))
checkerboard["colorA"].setValue(imath.Color4f(0.1, 0.25, 0.5, 1))
for i, channel in enumerate(["R", "G", "B", "A"]):
channelData = checkerboard["out"].channelData(
channel, imath.V2i(0))
self.assertEqual(
len(channelData), checkerboard["out"].tileSize() *
checkerboard["out"].tileSize())
expectedValue = checkerboard["colorA"][i].getValue()
s = GafferImage.Sampler(
checkerboard["out"], channel,
checkerboard["out"]["dataWindow"].getValue())
self.assertEqual(s.sample(12, 12), expectedValue)
self.assertEqual(s.sample(72, 72), expectedValue)
def testValuesIdentical(self):
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(GafferImage.Format(1024, 1024, 1))
checkerboard["size"].setValue(imath.V2f(14))
offset = GafferImage.Offset()
offset["in"].setInput(checkerboard["out"])
offset["offset"].setValue(imath.V2i(7))
merge = GafferImage.Merge()
merge["in"][0].setInput(checkerboard["out"])
merge["in"][1].setInput(offset["out"])
merge["operation"].setValue(GafferImage.Merge.Operation.Difference)
imageStats = GafferImage.ImageStats()
imageStats["in"].setInput(merge["out"])
imageStats["area"].setValue(imath.Box2i(imath.V2i(7), imath.V2i(1024)))
self.assertLess(imageStats["max"][0].getValue(), 2e-5)
self.assertLess(imageStats["average"][0].getValue(), 5e-7)
def testFilterWidth(self):
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(GafferImage.Format(128, 128))
checkerboard["size"]["x"].setValue(1)
checkerboard["size"]["y"].setValue(1)
checkerboard["transform"]["scale"]["x"].setValue(200)
checkerboard["transform"]["scale"]["y"].setValue(200)
sampler = GafferImage.ImageSampler()
sampler["image"].setInput(checkerboard["out"])
# Pixels on the border could be classified as within the filter width due to floating point precision,
# and could have floating point error
sampler["pixel"].setValue(imath.V2f(101, 54))
self.assertAlmostEqual(checkerboard["colorB"].getValue().r,
sampler["color"].getValue().r,
delta=0.0000001)
# Pixels on the interior of a checker must be exact
sampler["pixel"].setValue(imath.V2f(102, 54))
self.assertEqual(checkerboard["colorB"].getValue().r,
sampler["color"].getValue().r)
def testDisabledAndNonConcatenating(self):
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(200, 200))
t1 = GafferImage.ImageTransform()
t1["in"].setInput(checker["out"])
t1["transform"]["translate"]["x"].setValue(10)
t2 = GafferImage.ImageTransform()
t2["in"].setInput(t1["out"])
t2["transform"]["translate"]["x"].setValue(10)
t3 = GafferImage.ImageTransform()
t3["in"].setInput(t2["out"])
t3["transform"]["translate"]["x"].setValue(10)
self.assertEqual(t3["out"]["dataWindow"].getValue().min().x, 30)
t2["concatenate"].setValue(False)
self.assertEqual(t3["out"]["dataWindow"].getValue().min().x, 30)
t2["enabled"].setValue(False)
self.assertEqual(t3["out"]["dataWindow"].getValue().min().x, 20)
def nodeMenuCreateCommand(menu):
checkerboard = GafferImage.Checkerboard()
checkerboard["size"].gang()
return checkerboard
def testConcatenation(self):
# Identical transformation chains, but one
# with concatenation broken by a Blur node.
#
# checker
# |
# deleteChannels
# /\
# / \
# tc1 t1
# | |
# tc2 blur
# |
# t2
checker = GafferImage.Checkerboard()
checker["format"].setValue(GafferImage.Format(200, 200))
deleteChannels = GafferImage.DeleteChannels()
deleteChannels["in"].setInput(checker["out"])
deleteChannels["channels"].setValue("A")
tc1 = GafferImage.ImageTransform()
tc1["in"].setInput(deleteChannels["out"])
tc1["filter"].setValue("gaussian")
tc2 = GafferImage.ImageTransform()
tc2["in"].setInput(tc1["out"])
tc2["filter"].setInput(tc1["filter"])
t1 = GafferImage.ImageTransform()
t1["in"].setInput(deleteChannels["out"])
t1["transform"].setInput(tc1["transform"])
t1["filter"].setInput(tc1["filter"])
blur = GafferImage.Blur()
blur["in"].setInput(t1["out"])
t2 = GafferImage.ImageTransform()
t2["in"].setInput(blur["out"])
t2["transform"].setInput(tc2["transform"])
t2["filter"].setInput(tc1["filter"])
# The blur doesn't do anything except
# break concatentation. Check that tc2
# is practically identical to t2 for
# a range of transforms.
for i in range(0, 10):
random.seed(i)
translate1 = imath.V2f(random.uniform(-100, 100),
random.uniform(-100, 100))
rotate1 = random.uniform(-360, 360)
scale1 = imath.V2f(random.uniform(-2, 2), random.uniform(-2, 2))
tc1["transform"]["translate"].setValue(translate1)
tc1["transform"]["rotate"].setValue(rotate1)
tc1["transform"]["scale"].setValue(scale1)
translate2 = imath.V2f(random.uniform(-100, 100),
random.uniform(-100, 100))
rotate2 = random.uniform(-360, 360)
scale2 = imath.V2f(random.uniform(-2, 2), random.uniform(-2, 2))
tc2["transform"]["translate"].setValue(translate2)
tc2["transform"]["rotate"].setValue(rotate2)
tc2["transform"]["scale"].setValue(scale2)
# The `maxDifference` here is surprisingly high, but visual checks
# show that it is legitimate : differences in filtering are that great.
# The threshold is still significantly lower than the differences between
# checker tiles, so does guarantee that tiles aren't getting out of alignment.
self.assertImagesEqual(tc2["out"],
t2["out"],
maxDifference=0.11,
ignoreDataWindow=True)
def testPassthroughs(self):
ts = GafferImage.ImagePlug.tileSize()
checkerboardB = GafferImage.Checkerboard()
checkerboardB["format"]["displayWindow"].setValue(
imath.Box2i(imath.V2i(0), imath.V2i(4096)))
checkerboardA = GafferImage.Checkerboard()
checkerboardA["format"]["displayWindow"].setValue(
imath.Box2i(imath.V2i(0), imath.V2i(4096)))
checkerboardA["size"].setValue(imath.V2f(5))
cropB = GafferImage.Crop()
cropB["in"].setInput(checkerboardB["out"])
cropB["area"].setValue(
imath.Box2i(imath.V2i(ts * 0.5), imath.V2i(ts * 4.5)))
cropB["affectDisplayWindow"].setValue(False)
cropA = GafferImage.Crop()
cropA["in"].setInput(checkerboardA["out"])
cropA["area"].setValue(
imath.Box2i(imath.V2i(ts * 2.5), imath.V2i(ts * 6.5)))
cropA["affectDisplayWindow"].setValue(False)
merge = GafferImage.Merge()
merge["in"][0].setInput(cropB["out"])
merge["in"][1].setInput(cropA["out"])
merge["operation"].setValue(8)
sampleTileOrigins = {
"insideBoth": imath.V2i(ts * 3, ts * 3),
"outsideBoth": imath.V2i(ts * 5, ts),
"outsideEdgeB": imath.V2i(ts, 0),
"insideB": imath.V2i(ts, ts),
"internalEdgeB": imath.V2i(ts * 4, ts),
"internalEdgeA": imath.V2i(ts * 5, ts * 2),
"insideA": imath.V2i(ts * 5, ts * 5),
"outsideEdgeA": imath.V2i(ts * 6, ts * 5)
}
for opName, onlyA, onlyB in [("Atop", "black", "passB"),
("Divide", "operate", "black"),
("Out", "passA", "black"),
("Multiply", "black", "black"),
("Over", "passA", "passB"),
("Subtract", "passA", "operate"),
("Difference", "operate", "operate")]:
op = getattr(GafferImage.Merge.Operation, opName)
merge["operation"].setValue(op)
results = {}
for name, tileOrigin in sampleTileOrigins.items():
# We want to check the value pass through code independently
# of the hash passthrough code, which we can do by dropping
# the value cached and evaluating values first
Gaffer.ValuePlug.clearCache()
with Gaffer.Context() as c:
c["image:tileOrigin"] = tileOrigin
c["image:channelName"] = "R"
data = merge["out"]["channelData"].getValue(_copy=False)
if data.isSame(
GafferImage.ImagePlug.blackTile(_copy=False)):
computeMode = "black"
elif data.isSame(
cropB["out"]["channelData"].getValue(_copy=False)):
computeMode = "passB"
elif data.isSame(
cropA["out"]["channelData"].getValue(_copy=False)):
computeMode = "passA"
else:
computeMode = "operate"
h = merge["out"]["channelData"].hash()
if h == GafferImage.ImagePlug.blackTile().hash():
hashMode = "black"
elif h == cropB["out"]["channelData"].hash():
hashMode = "passB"
elif h == cropA["out"]["channelData"].hash():
hashMode = "passA"
else:
hashMode = "operate"
self.assertEqual(hashMode, computeMode)
results[name] = hashMode
self.assertEqual(results["insideBoth"], "operate")
self.assertEqual(results["outsideBoth"], "black")
self.assertEqual(results["outsideEdgeB"], onlyB)
self.assertEqual(results["insideB"], onlyB)
self.assertEqual(results["outsideEdgeA"], onlyA)
self.assertEqual(results["insideA"], onlyA)
if onlyA == "black" or onlyB == "black":
self.assertEqual(results["internalEdgeB"], onlyB)
self.assertEqual(results["internalEdgeA"], onlyA)
else:
self.assertEqual(results["internalEdgeB"], "operate")
self.assertEqual(results["internalEdgeA"], "operate")
def runBoundaryCorrectness(self, scale):
testMerge = GafferImage.Merge()
subImageNodes = []
for checkSize, col, bound in [
(2, (0.672299981, 0.672299981, 0), ((11, 7), (61, 57))),
(4, (0.972599983, 0.493499994, 1), ((9, 5), (59, 55))),
(6, (0.310799986, 0.843800008, 1), ((0, 21), (1024, 41))),
(8, (0.958999991, 0.672299981, 0.0296), ((22, 0), (42, 1024))),
(10, (0.950900018, 0.0899000019, 0.235499993), ((7, 10), (47,
50))),
]:
checkerboard = GafferImage.Checkerboard()
checkerboard["format"].setValue(
GafferImage.Format(1024 * scale, 1024 * scale, 1.000))
checkerboard["size"].setValue(imath.V2f(checkSize * scale))
checkerboard["colorA"].setValue(
imath.Color4f(0.1 * col[0], 0.1 * col[1], 0.1 * col[2], 0.3))
checkerboard["colorB"].setValue(
imath.Color4f(0.5 * col[0], 0.5 * col[1], 0.5 * col[2], 0.7))
crop = GafferImage.Crop("Crop")
crop["in"].setInput(checkerboard["out"])
crop["area"].setValue(
imath.Box2i(
imath.V2i(scale * bound[0][0], scale * bound[0][1]),
imath.V2i(scale * bound[1][0], scale * bound[1][1])))
crop["affectDisplayWindow"].setValue(False)
subImageNodes.append(checkerboard)
subImageNodes.append(crop)
testMerge["in"][-1].setInput(crop["out"])
testMerge["expression"] = Gaffer.Expression()
testMerge["expression"].setExpression(
'parent["operation"] = context[ "loop:index" ]')
inverseScale = GafferImage.ImageTransform()
inverseScale["in"].setInput(testMerge["out"])
inverseScale["filter"].setValue("box")
inverseScale["transform"]["scale"].setValue(imath.V2f(1.0 / scale))
crop1 = GafferImage.Crop()
crop1["in"].setInput(inverseScale["out"])
crop1["area"].setValue(imath.Box2i(imath.V2i(0, 0), imath.V2i(64, 64)))
loopInit = GafferImage.Constant()
loopInit["format"].setValue(GafferImage.Format(896, 64, 1.000))
loopInit["color"].setValue(imath.Color4f(0))
loopOffset = GafferImage.Offset()
loopOffset["in"].setInput(crop1["out"])
loopOffset["expression"] = Gaffer.Expression()
loopOffset["expression"].setExpression(
'parent["offset"]["x"] = 64 * context[ "loop:index" ]')
loopMerge = GafferImage.Merge()
loopMerge["in"][1].setInput(loopOffset["out"])
loop = Gaffer.Loop()
loop.setup(GafferImage.ImagePlug("in", ))
loop["iterations"].setValue(14)
loop["in"].setInput(loopInit["out"])
loop["next"].setInput(loopMerge["out"])
loopMerge["in"][0].setInput(loop["previous"])
# Uncomment for debug
#imageWriter = GafferImage.ImageWriter( "ImageWriter" )
#imageWriter["in"].setInput( loop["out"] )
#imageWriter['openexr']['dataType'].setValue( "float" )
#imageWriter["fileName"].setValue( "/tmp/mergeBoundaries.exr" )
#imageWriter.execute()
reader = GafferImage.ImageReader()
reader["fileName"].setValue(self.mergeBoundariesRefPath)
self.assertImagesEqual(loop["out"],
reader["out"],
ignoreMetadata=True,
maxDifference=1e-5 if scale > 1 else 0)
