def test_contructor(self):
"""
Test GradingRGBCurveTransform constructor without and with keywords.
"""
gct = OCIO.GradingRGBCurveTransform()
self.assertEqual(gct.getStyle(), OCIO.GRADING_LOG)
assertEqualRGBCurve(self, gct.getValue(), self.valDefaultLog)
self.assertEqual(gct.isDynamic(), False)
self.assertEqual(gct.getBypassLinToLog(), False)
self.assertEqual(gct.getDirection(), OCIO.TRANSFORM_DIR_FORWARD)
gct = OCIO.GradingRGBCurveTransform(OCIO.GRADING_LIN)
self.assertEqual(gct.getStyle(), OCIO.GRADING_LIN)
assertEqualRGBCurve(self, gct.getValue(), self.valDefaultLin)
self.assertEqual(gct.isDynamic(), False)
self.assertEqual(gct.getBypassLinToLog(), False)
self.assertEqual(gct.getDirection(), OCIO.TRANSFORM_DIR_FORWARD)
vals = OCIO.GradingRGBCurve(OCIO.GRADING_LOG)
vals.red = OCIO.GradingBSplineCurve(4)
cpts = vals.red.getControlPoints()
cpts[0] = OCIO.GradingControlPoint(0.0, 0.1)
cpts[1] = OCIO.GradingControlPoint(0.1, 0.5)
cpts[2] = OCIO.GradingControlPoint(0.4, 0.6)
cpts[3] = OCIO.GradingControlPoint(0.6, 0.7)
gct = OCIO.GradingRGBCurveTransform(style=OCIO.GRADING_VIDEO,
values=vals,
dynamic=True,
dir=OCIO.TRANSFORM_DIR_INVERSE)
self.assertEqual(gct.getStyle(), OCIO.GRADING_VIDEO)
self.assertEqual(gct.isDynamic(), True)
self.assertEqual(gct.getDirection(), OCIO.TRANSFORM_DIR_INVERSE)
assertEqualRGBCurve(self, gct.getValue(), vals)
def test_rgbcurve(self):
"""
Test the GradingRGBCurve, creation, default value, modification.
"""
rgbLin = OCIO.GradingRGBCurve(OCIO.GRADING_LIN)
defLin = OCIO.GradingBSplineCurve(3)
cpts = defLin.getControlPoints()
cpts[0] = OCIO.GradingControlPoint(-7, -7)
cpts[1] = OCIO.GradingControlPoint(0, 0)
cpts[2] = OCIO.GradingControlPoint(7, 7)
assertEqualBSpline(self, rgbLin.red, defLin)
assertEqualBSpline(self, rgbLin.green, defLin)
assertEqualBSpline(self, rgbLin.blue, defLin)
assertEqualBSpline(self, rgbLin.master, defLin)
rgbLog = OCIO.GradingRGBCurve(OCIO.GRADING_LOG)
defLog = OCIO.GradingBSplineCurve(3)
cpts = defLog.getControlPoints()
cpts[0] = OCIO.GradingControlPoint(0, 0)
cpts[1] = OCIO.GradingControlPoint(0.5, 0.5)
cpts[2] = OCIO.GradingControlPoint(1, 1)
assertEqualBSpline(self, rgbLog.red, defLog)
assertEqualBSpline(self, rgbLog.green, defLog)
assertEqualBSpline(self, rgbLog.blue, defLog)
assertEqualBSpline(self, rgbLog.master, defLog)
with self.assertRaises(AssertionError):
assertEqualBSpline(self, rgbLog.master, defLin)
rgbVideo = OCIO.GradingRGBCurve(OCIO.GRADING_LOG)
assertEqualRGBCurve(self, rgbLog, rgbVideo)
def test_bspline(self):
"""
Test the GradingBSplineCurve: creation, control point modification, validation.
"""
bs = OCIO.GradingBSplineCurve(5)
cpts = bs.getControlPoints()
# First control point (i.e. cpts[0]) defaults to {0, 0}.
cpts[1] = OCIO.GradingControlPoint(0.1, 0.5)
cpts[2] = OCIO.GradingControlPoint(0.4, 0.6)
cpts[3] = OCIO.GradingControlPoint(0.6, 0.7)
cpts[4] = OCIO.GradingControlPoint(1, 1)
self.assertIsNone(bs.validate())
# Move point 4 before point 3 on the x axis so that the control points are not anymore
# monotonic. Then, it must throw an exception.
cpts[4] = OCIO.GradingControlPoint(0.5, 1)
with self.assertRaises(OCIO.Exception):
bs.validate()
# Restore valid data.
cpts[4] = OCIO.GradingControlPoint(1, 1)
bs2 = OCIO.GradingBSplineCurve(
[0, 0, 0.1, 0.5, 0.4, 0.6, 0.6, 0.7, 1, 1])
cpts2 = bs2.getControlPoints()
assertEqualBSpline(self, bs, bs2)
bs3 = OCIO.GradingBSplineCurve(4)
cpts3 = bs3.getControlPoints()
cpts3[1] = OCIO.GradingControlPoint(0.1, 0.5)
cpts3[2] = OCIO.GradingControlPoint(0.4, 0.6)
cpts3[3] = OCIO.GradingControlPoint(0.6, 0.7)
with self.assertRaises(AssertionError):
assertEqualBSpline(self, bs, bs3)
bs4 = OCIO.GradingBSplineCurve(6)
cpts4 = bs4.getControlPoints()
cpts4[1] = OCIO.GradingControlPoint(0.1, 0.5)
cpts4[2] = OCIO.GradingControlPoint(0.4, 0.6)
cpts4[3] = OCIO.GradingControlPoint(0.6, 0.7)
cpts4[4] = OCIO.GradingControlPoint(1, 1)
cpts4[5] = OCIO.GradingControlPoint(1.2, 1.1)
with self.assertRaises(AssertionError):
assertEqualBSpline(self, bs, bs4)
bs5 = OCIO.GradingBSplineCurve(5)
cpts5 = bs5.getControlPoints()
cpts5[1] = OCIO.GradingControlPoint(0.1, 0.5)
# Different x value.
cpts5[2] = OCIO.GradingControlPoint(0.5, 0.6)
cpts5[3] = OCIO.GradingControlPoint(0.6, 0.7)
cpts5[4] = OCIO.GradingControlPoint(1, 1)
with self.assertRaises(AssertionError):
assertEqualBSpline(self, bs, bs5)