def test_constructor_with_keyword(self):
"""
Test FileTransform constructor with keywords and validate its values.
"""
# With keywords in their proper order.
file_tr = OCIO.FileTransform(src=self.TEST_SRC,
cccId=self.TEST_ID,
interpolation=self.TEST_INTERPOLATION,
direction=self.TEST_DIRECTION)
self.assertEqual(file_tr.getSrc(), self.TEST_SRC)
self.assertEqual(file_tr.getCCCId(), self.TEST_ID)
self.assertEqual(file_tr.getInterpolation(), self.TEST_INTERPOLATION)
self.assertEqual(file_tr.getDirection(), self.TEST_DIRECTION)
# With keywords not in their proper order.
file_tr2 = OCIO.FileTransform(cccId=self.TEST_ID,
direction=self.TEST_DIRECTION,
src=self.TEST_SRC,
interpolation=self.TEST_INTERPOLATION)
self.assertEqual(file_tr2.getSrc(), self.TEST_SRC)
self.assertEqual(file_tr2.getCCCId(), self.TEST_ID)
self.assertEqual(file_tr2.getInterpolation(), self.TEST_INTERPOLATION)
self.assertEqual(file_tr2.getDirection(), self.TEST_DIRECTION)
def aces_rec709_output():
"""ACES Rec. 709 output"""
col_space = OCIO.ColorSpace(name="Output - ACES Rec. 709", family="Output")
col_space.setDescription("ACES Rec. 709 output transform")
col_space.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform("Log2_48_nits_Shaper_to_linear.spi1d",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_INVERSE))
group_xform.push_back(
OCIO.FileTransform("Log2_48_nits_Shaper.RRT.Rec.709.spi3d",
interpolation=OCIO.Constants.INTERP_TETRAHEDRAL))
col_space.setTransform(group_xform,
OCIO.Constants.COLORSPACE_DIR_FROM_REFERENCE)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform("InvRRT.Rec.709.Log2_48_nits_Shaper.spi3d",
interpolation=OCIO.Constants.INTERP_TETRAHEDRAL))
group_xform.push_back(
OCIO.FileTransform("Log2_48_nits_Shaper_to_linear.spi1d",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
col_space.setTransform(group_xform,
OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
return col_space
def make_exp_color_space(cs_name="gm24_min_0_max_1",
description="experiment color space",
allocation=OCIO.Constants.ALLOCATION_UNIFORM,
allocationVars=[0, 1],
eotf_lut_file=LUT_FILE_GAMMA24,
is_3dlut=False):
cs = OCIO.ColorSpace(name=cs_name)
cs.setDescription(description)
cs.setFamily("experiment")
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocation(allocation)
cs.setAllocationVars(allocationVars)
# to reference
file_to_ref = OCIO.FileTransform(eotf_lut_file,
direction=DIRECTION_OPS['forward'],
interpolation=INTERPOLATION_OPS['linear'])
cs.setTransform(file_to_ref, COLOR_SPACE_DIRECTION['to_reference'])
# from reference
if is_3dlut:
file_from_ref = OCIO.FileTransform(
eotf_lut_file,
direction=DIRECTION_OPS['forward'],
interpolation=INTERPOLATION_OPS['linear'])
cs.setTransform(file_from_ref, COLOR_SPACE_DIRECTION['from_reference'])
else:
file_from_ref = OCIO.FileTransform(
eotf_lut_file,
direction=DIRECTION_OPS['inverse'],
interpolation=INTERPOLATION_OPS['linear'])
cs.setTransform(file_from_ref, COLOR_SPACE_DIRECTION['from_reference'])
return cs
def create_ocio_config(config=None):
domain = np.array([-10, 15])
logarithmic_shaper = ocio.NamedTransform(
name="Logarithmic Shaper",
forwardTransform=ocio.AllocationTransform(
vars=np.log2(0.18 * np.power(2.0, domain))),
)
image_formation_transform = ocio.ViewTransform(
name="Image Formation Transform",
fromReference=ocio.GroupTransform([
ocio.FileTransform(
src="AestheticTransferFunction.csp",
interpolation=ocio.INTERP_TETRAHEDRAL,
),
]),
)
named_transforms = [
logarithmic_shaper,
]
view_transforms = [
image_formation_transform,
]
cfg = config or ocu.baby_config()
for vt in view_transforms:
cfg.addViewTransform(vt)
for nt in named_transforms:
cfg.addNamedTransform(nt)
return cfg
def load_input_transform(config, gt, base_path, input_elem):
""" Add an OCIO transform to the supplied group transform to implement an ACES Input Transform. """
#
# InputTransform ACES transformId case.
#
id_elem = input_elem.find('./aces:transformId', namespaces=NS)
if id_elem is not None:
aces_id = id_elem.text
cs_name = search_colorspaces(config, aces_id)
if cs_name is not None:
print('Adding Input Transform from', cs_name, 'to ACES2065-1')
gt.appendTransform( ocio.ColorSpaceTransform(cs_name, ACES, ocio.TRANSFORM_DIR_FORWARD) )
return
else:
raise ValueError("Could not find transform for transformId element: " + aces_id)
#
# InputTransform external LUT file case.
#
file_elem = input_elem.find('./aces:file', namespaces=NS)
if file_elem is not None:
lut_path = file_elem.text
if lut_path is not None:
lut_path = check_lut_path(base_path, lut_path)
print('Adding Input Transform LUT file:', lut_path)
gt.appendTransform( ocio.FileTransform(lut_path, '', ocio.INTERP_BEST, ocio.TRANSFORM_DIR_FORWARD) )
return
#
# InputTransform is an inverse OutputTransform case.
#
load_output_transform(config, gt, base_path, input_elem, is_inverse=True)
def create_builtin_transform(style):
"""
Creates an *OpenColorIO* builtin transform for given style.
If the style does not exist, a placeholder transform is used in place
of the builtin transform.
Parameters
----------
style : unicode
*OpenColorIO* builtin transform style
Returns
-------
BuiltinTransform
*OpenColorIO* builtin transform for given style.
"""
import PyOpenColorIO as ocio
builtin_transform = ocio.BuiltinTransform()
try:
builtin_transform.setStyle(style)
except ocio.Exception:
logging.warning(f'{style} style is not defined, '
f'using a placeholder "FileTransform" instead!')
builtin_transform = ocio.FileTransform()
builtin_transform.setSrc(style)
return builtin_transform
def acesproxy_colorspace():
"""ACESproxy"""
col_space = OCIO.ColorSpace(name="ACES - ACESproxy", family="ACES")
col_space.setDescription("ACESproxy colorspace, gamma and primaries")
col_space.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
col_space.setAllocationVars([0, 1])
col_space.setAllocation(OCIO.Constants.ALLOCATION_UNIFORM)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform("ACESproxy_to_linear.spi1d",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
group_xform.push_back(
OCIO.FileTransform("AP1_to_AP0.spimtx",
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
col_space.setTransform(group_xform,
OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
return col_space
def rec709_colorspace():
"""Rec. 709"""
col_space = OCIO.ColorSpace(name="Input - Rec. 709", family="Input")
col_space.setDescription(
"Rec. 709 colorspace, Rec. 1886 gamma, Rec. 709 primaries")
col_space.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
col_space.setAllocationVars([0, 1])
col_space.setAllocation(OCIO.Constants.ALLOCATION_UNIFORM)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform("rec1886_to_linear.spi1d",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
group_xform.push_back(
OCIO.FileTransform("sRGB_to_AP0.spimtx",
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
col_space.setTransform(group_xform,
OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
return col_space
def test_get_processor(self):
"""
Test FileTransform default interpolation is valid and unknown interpolation is not valid.
"""
config = OCIO.Config.CreateRaw()
test_file = '%s/lut1d_1.spi1d' % TEST_DATAFILES_DIR
file_tr = OCIO.FileTransform(src=test_file)
processor = config.getProcessor(file_tr)
# INTERP_UNKNOWN is not a valid interpolation.
file_tr.setInterpolation(OCIO.INTERP_UNKNOWN)
with self.assertRaises(OCIO.Exception):
processor = config.getProcessor(file_tr)
def test_constructor_with_positional(self):
"""
Test FileTransform constructor without keywords and validate its values.
"""
file_tr = OCIO.FileTransform(self.TEST_SRC, self.TEST_ID,
self.TEST_INTERPOLATION,
self.TEST_DIRECTION)
self.assertEqual(file_tr.getSrc(), self.TEST_SRC)
self.assertEqual(file_tr.getCCCId(), self.TEST_ID)
self.assertEqual(file_tr.getInterpolation(), self.TEST_INTERPOLATION)
self.assertEqual(file_tr.getDirection(), self.TEST_DIRECTION)
def make_typical_color_space(cs_name=BT1886_CS,
description="bt1886",
allocation=OCIO.Constants.ALLOCATION_UNIFORM,
allocationVars=[0, 1],
eotf_lut_file=LUT_FILE_GAMMA24,
to_ref_mtx=BT709_TO_ACES2065_1_MTX,
from_ref_mtx=ACES2065_1_TO_BT709_MTX):
"""
典型的な Color Space を作成する。
"""
cs = OCIO.ColorSpace(name=get_colorspace_name(cs_name))
cs.setDescription(description)
cs.setFamily(get_eotf_name(cs_name))
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocation(allocation)
cs.setAllocationVars(allocationVars)
# to reference
file_to_ref = OCIO.FileTransform(eotf_lut_file,
direction=DIRECTION_OPS['forward'],
interpolation=INTERPOLATION_OPS['linear'])
matrix_to_ref = OCIO.MatrixTransform(matrix=to_ref_mtx,
direction=DIRECTION_OPS['forward'])
group_to_ref = OCIO.GroupTransform([file_to_ref, matrix_to_ref])
cs.setTransform(group_to_ref, COLOR_SPACE_DIRECTION['to_reference'])
# from reference
file_from_ref = OCIO.FileTransform(
eotf_lut_file,
direction=DIRECTION_OPS['inverse'],
interpolation=INTERPOLATION_OPS['linear'])
matrix_from_ref = OCIO.MatrixTransform(matrix=from_ref_mtx,
direction=DIRECTION_OPS['forward'])
group_from_ref = OCIO.GroupTransform([matrix_from_ref, file_from_ref])
cs.setTransform(group_from_ref, COLOR_SPACE_DIRECTION['from_reference'])
return cs
def flog_colorspace():
"""Fujifilm F-Log color space"""
col_space = OCIO.ColorSpace(name="flog", family="Fujifilm")
col_space.setDescription("Fujifilm F-Log color space")
col_space.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
col_space.setAllocationVars([0, 1])
col_space.setAllocation(OCIO.Constants.ALLOCATION_UNIFORM)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform(
"flog_to_linear.cube",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD,
)
)
group_xform.push_back(
OCIO.FileTransform(
"rec2020_to_ap0.cat02.spimtx",
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD,
)
)
col_space.setTransform(group_xform, OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
return col_space
def acescg_colorspace():
"""ACEScg"""
col_space = OCIO.ColorSpace(name="ACES - ACEScg", family="ACES")
col_space.setDescription("Scene-linear, high dynamic range, AP1 primaries")
col_space.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
col_space.setAllocationVars([-8.0, 5.0, 0.00390625])
col_space.setAllocation(OCIO.Constants.ALLOCATION_LG2)
group_xform = OCIO.GroupTransform()
group_xform.push_back(
OCIO.FileTransform("AP1_to_AP0.spimtx",
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
col_space.setTransform(group_xform,
OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
return col_space
def test_get_processor(self):
"""
Test that interpolation values of default and unknown do not cause a problem for
getProcessor.
"""
config = OCIO.Config.CreateRaw()
test_file = os.path.join(TEST_DATAFILES_DIR, 'lut1d_1.spi1d')
file_tr = OCIO.FileTransform(src=test_file)
processor = config.getProcessor(file_tr)
# INTERP_UNKNOWN will be ignored by the LUT and a warning will be logged.
curLogLevel = OCIO.GetLoggingLevel()
OCIO.SetLoggingLevel(OCIO.LOGGING_LEVEL_NONE)
file_tr.setInterpolation(OCIO.INTERP_UNKNOWN)
processor = config.getProcessor(file_tr)
OCIO.SetLoggingLevel(curLogLevel)
def buildLUTFilter(config,
path,
filter,
filter_cache_id,
texture_cache_id,
extrapolate,
force_shader_build=False):
file_transform = PyOpenColorIO.FileTransform()
file_transform.setSrc(path)
file_transform.setInterpolation('linear')
processor = config.getProcessor(file_transform)
return buildProcessorFilter(processor, filter, filter_cache_id,
texture_cache_id, extrapolate,
force_shader_build)
def RegisterOCIOLut():
if not hasattr(mari.gl_render, "createPostFilter"):
print "Error: This version of Mari does not support the mari.gl_render.createPostFilter API"
return
config = OCIO.Config()
transform = OCIO.FileTransform(
src=os.path.realpath(LUT_FILENAME),
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD)
processor = config.getProcessor(transform)
shaderDesc = dict([('language', OCIO.Constants.GPU_LANGUAGE_GLSL_1_3),
('functionName', 'display_ocio_$ID_'),
('lut3DEdgeLen', LUT3D_SIZE)])
shaderText = processor.getGpuShaderText(shaderDesc)
lut3d = processor.getGpuLut3D(shaderDesc)
# Clear the existing color managment filter stack
mari.gl_render.clearPostFilterStack()
# Create variable pre-declarations
desc = "sampler3D lut3d_ocio_$ID_;\n"
desc += shaderText
# Set the body of the filter
body = "{ Out = display_ocio_$ID_(Out, lut3d_ocio_$ID_); }"
# HACK: Increment a counter by 1 each time to force a refresh
if not hasattr(mari, "ocio_lut_counter_hack"):
mari.ocio_lut_counter_hack = 0
else:
mari.ocio_lut_counter_hack += 1
ocio_lut_counter_hack = mari.ocio_lut_counter_hack
# Create a new filter
name = "OCIO %s v%d" % (os.path.basename(LUT_FILENAME),
ocio_lut_counter_hack)
postfilter = mari.gl_render.createPostFilter(name, desc, body)
# Set the texture to use for the given sampler on this filter
postfilter.setTexture3D("lut3d_ocio_$ID_", LUT3D_SIZE, LUT3D_SIZE,
LUT3D_SIZE, postfilter.FORMAT_RGB, lut3d)
# Append the filter to the end of the current list of filters
mari.gl_render.appendPostFilter(postfilter)
def add_aesthetic_transfer_function_to_config(atf, config):
min_exposure = -6.5
max_exposure = atf.ev_above_middle_grey
middle_grey = atf.middle_grey_in
domain = np.array([min_exposure, max_exposure])
lin_to_normalized_log_transform = (
ocio.AllocationTransform(
vars=np.log2(middle_grey * np.power(2.0, domain)),
allocation=ocio.ALLOCATION_LG2,
),
)
normalized_log_to_lin_transform = (
ocio.AllocationTransform(
vars=np.log2(middle_grey * np.power(2.0, domain)),
allocation=ocio.ALLOCATION_LG2,
direction=ocio.TRANSFORM_DIR_INVERSE,
),
)
image_formation_transform = ocio.ViewTransform(
name="Image Formation Transform",
fromReference=ocio.GroupTransform(
[
ocio.AllocationTransform(
vars=np.log2(middle_grey * np.power(2.0, domain)),
allocation=ocio.ALLOCATION_LG2,
),
ocio.FileTransform(
src=atf.get_filename(extension="clf"),
interpolation=ocio.INTERP_TETRAHEDRAL,
),
]
),
)
view_transforms = [
image_formation_transform,
]
for vt in view_transforms:
config.addViewTransform(vt)
return config
def test_format_meta_data(self):
# Test FormatMetadata related functions.
cfg = OCIO.Config.CreateRaw()
test_file = os.path.join(TEST_DATAFILES_DIR, 'clf', 'xyz_to_rgb.clf')
file_tr = OCIO.FileTransform(src=test_file)
proc = cfg.getProcessor(file_tr)
# Remove the no-ops, since they are useless here.
proc = proc.getOptimizedProcessor(OCIO.OPTIMIZATION_NONE)
# For CTF, ProcessList metadata is added to processor FormatMetadata.
proc_fmd = proc.getFormatMetadata()
self.assertEqual(proc_fmd.getID(),
'1d399a07-1936-49b8-9225-e6824790358c')
proc_fmd_children = proc_fmd.getChildElements()
self.assertEqual(len(proc_fmd_children), 1)
child = next(proc_fmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(),
'Example with a Matrix and Lut1D')
# Each transform in the CTF file has a FormatMetadata. There are 3 transforms in this file.
proc_tfmd = proc.getTransformFormatMetadata()
self.assertEqual(len(proc_tfmd), 3)
tfmd = next(proc_tfmd)
self.assertEqual(tfmd.getID(), '72f85641-8c80-4bd6-b96b-a2f67ccb948a')
tfmd_children = tfmd.getChildElements()
self.assertEqual(len(tfmd_children), 1)
child = next(tfmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(), 'XYZ to sRGB matrix')
tfmd = next(proc_tfmd)
tfmd = next(proc_tfmd)
self.assertEqual(tfmd.getID(), '4ed2af07-9319-430a-b18a-43368163c808')
tfmd_children = tfmd.getChildElements()
self.assertEqual(len(tfmd_children), 1)
child = next(tfmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(),
'x^1/1.8, with 0.95 and 0.9 scaling for G and B')
def load_cdl_working_space_transform(config, base_path, look_elem, is_to_direc):
""" Return an OCIO transform for a CDL to/from working space transform. """
if is_to_direc:
token = 'aces:toCdlWorkingSpace'
else:
token = 'aces:fromCdlWorkingSpace'
elem = look_elem.find(token, namespaces=NS)
if elem is not None:
#
# ACES transformId case.
#
id_elem = elem.find('./aces:transformId', namespaces=NS)
if id_elem is not None:
aces_id = id_elem.text
cs_name = search_colorspaces(config, aces_id)
if cs_name is not None:
if is_to_direc:
print(' Loading To-CDL-Working-Space Transform from ACES2065-1 to', cs_name)
transform = ocio.ColorSpaceTransform(ACES, cs_name, ocio.TRANSFORM_DIR_FORWARD)
else:
print(' Loading From-CDL-Working-Space Transform from', cs_name, 'to ACES2065-1')
transform = ocio.ColorSpaceTransform(cs_name, ACES, ocio.TRANSFORM_DIR_FORWARD)
return transform
else:
raise ValueError("Could not find transform for transformId element: " + aces_id)
#
# External LUT file case.
#
file_elem = elem.find('./aces:file', namespaces=NS)
if file_elem is not None:
lut_path = file_elem.text
if lut_path is not None:
lut_path = check_lut_path(base_path, lut_path)
if is_to_direc:
print(' Loading To-CDL-Working-Space Transform file:', lut_path)
else:
print(' Loading From-CDL-Working-Space Transform file:', lut_path)
transform = ocio.FileTransform(lut_path, '', ocio.INTERP_BEST, ocio.TRANSFORM_DIR_FORWARD)
return transform
return None
def test_format_meta_data(self):
# Test FormatMetadata related functions.
cfg = OCIO.Config.CreateRaw()
test_file = '%s/clf/xyz_to_rgb.clf' % TEST_DATAFILES_DIR
file_tr = OCIO.FileTransform(src=test_file)
proc = cfg.getProcessor(file_tr)
# For CTF, ProcessList metadata is added to processor FormatMetadata.
proc_fmd = proc.getFormatMetadata()
self.assertEqual(proc_fmd.getID(),
'1d399a07-1936-49b8-9225-e6824790358c')
proc_fmd_children = proc_fmd.getChildElements()
self.assertEqual(len(proc_fmd_children), 1)
child = next(proc_fmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(),
'Example with a Matrix and Lut1D')
# Each transform in the CTF file has a FormatMetadata. There are 2 transforms in this file.
proc_tfmd = proc.getTransformFormatMetadata()
self.assertEqual(len(proc_tfmd), 2)
tfmd = next(proc_tfmd)
self.assertEqual(tfmd.getID(), '72f85641-8c80-4bd6-b96b-a2f67ccb948a')
tfmd_children = tfmd.getChildElements()
self.assertEqual(len(tfmd_children), 1)
child = next(tfmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(), 'XYZ to sRGB matrix')
tfmd = next(proc_tfmd)
self.assertEqual(tfmd.getID(), '4ed2af07-9319-430a-b18a-43368163c808')
tfmd_children = tfmd.getChildElements()
self.assertEqual(len(tfmd_children), 1)
child = next(tfmd_children)
self.assertEqual(child.getElementName(), 'Description')
self.assertEqual(child.getElementValue(),
'linear to approx. gamma corrected code values')
transform_colorimetry.setSrc("BT.709 SR Linear")
transform_colorimetry.setDst("BT.2020 SR Linear")
transform = PyOpenColorIO.GroupTransform()
transform.setTransforms(
[transform_transfer, transform_scale, transform_colorimetry])
colorspace.setTransform(
transform, PyOpenColorIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
config.addColorSpace(colorspace)
# Full colorimetric BT.2020 ST.2084 transform
colorspace = PyOpenColorIO.ColorSpace(family="Colorimetry",
name="BT.2020 ST.2084 Nonlinear")
colorspace.setDescription("Colorimetric BT.2020 ST.2084 Transfer")
transform_scale = PyOpenColorIO.MatrixTransform(ocio_st2084_scale)
transform_transfer = PyOpenColorIO.FileTransform()
transform_transfer.setSrc("st2084_to_nits.spi1d")
transform_transfer.setInterpolation(PyOpenColorIO.Constants.INTERP_LINEAR)
transform = PyOpenColorIO.GroupTransform()
transform.setTransforms([transform_transfer, transform_scale])
colorspace.setTransform(
transform, PyOpenColorIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
config.addColorSpace(colorspace)
# Non colour data transform
colorspace = PyOpenColorIO.ColorSpace(family="Core",
name="Non-Colour Data")
colorspace.setDescription("Non-Colour Data")
colorspace.setBitDepth(PyOpenColorIO.Constants.BIT_DEPTH_F32)
colorspace.setIsData(True)
# ACES transforms
cs = OCIO.ColorSpace(name="ACES - ACES2065-1", family="ACES")
cs.setDescription("Scene-linear, high dynamic range, AP0 primaries")
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocationVars([-8.0, 5.0, 0.00390625])
cs.setAllocation(OCIO.Constants.ALLOCATION_LG2)
config.addColorSpace(cs)
cs = OCIO.ColorSpace(name="ACES - ACEScg", family="ACES")
cs.setDescription("Scene-linear, high dynamic range, AP1 primaries")
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocationVars([-8.0, 5.0, 0.00390625])
cs.setAllocation(OCIO.Constants.ALLOCATION_LG2)
gt = OCIO.GroupTransform()
gt.push_back(
OCIO.FileTransform("AP1_to_AP0.spimtx",
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
cs.setTransform(gt, OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
config.addColorSpace(cs)
cs = OCIO.ColorSpace(name="ACES - ACESproxy", family="ACES")
cs.setDescription("ACESproxy colorspace, gamma and primaries")
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocationVars([0, 1])
cs.setAllocation(OCIO.Constants.ALLOCATION_UNIFORM)
gt = OCIO.GroupTransform()
gt.push_back(
OCIO.FileTransform("ACESproxy_to_linear.spi1d",
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD))
gt.push_back(
OCIO.FileTransform("AP1_to_AP0.spimtx",
def convertImage(filename=__FILEIN__, fileOutName=__FILEOUT__, format='tif'):
# open the file
inputFile = oiio.ImageInput.open(filename)
# check if the input file is valid
if not inputFile:
print 'Could not open: "' + filename + '"'
print '\tError: "', oiio.geterror()
return
# get the spec of the input file
spec = inputFile.spec()
nchans = spec.nchannels
# read the image and return the pixels as array type
pixels = inputFile.read_image(oiio.FLOAT)
# check that the pixels are ok
if not pixels:
print 'Could not read:', inputFile.geterror()
return
inputFile.close() #we're done with the file at this point
# open the OCIO config
config = OCIO.GetCurrentConfig()
# get the processor to transform from linear to Asterix2_Film space
newConfig = OCIO.Config()
colorspace = OCIO.ColorSpace(name='rawInput')
group = OCIO.GroupTransform()
main_lut = OCIO.FileTransform(
'/s/prodanim/asterix2/_sandbox/duda/tmp/ocioLut/test.csp',
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD)
group.push_back(main_lut)
colorspace.setTransform(group, OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
newConfig.addColorSpace(colorspace)
colorspace = OCIO.ColorSpace(name='srgb8')
group = OCIO.GroupTransform()
main_lut = OCIO.FileTransform(
'/s/prodanim/asterix2/_sandbox/duda/tmp/ocioLut/linTosrgbA2.csp',
interpolation=OCIO.Constants.INTERP_LINEAR,
direction=OCIO.Constants.TRANSFORM_DIR_FORWARD)
group.push_back(main_lut)
colorspace.setTransform(group, OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
newConfig.addColorSpace(colorspace)
colorspace = OCIO.ColorSpace(name='processedOutput')
newConfig.addColorSpace(colorspace)
newProccessor = newConfig.getProcessor(
'rawInput',
'srgb8',
)
# apply the transform
buf = newProccessor.applyRGBA(pixels)
#processor = config.getProcessor('Asterix2_Film','srgb8')
#buf = processor.applyRGBA(pixels)
# convert the list to an array type
imgTrans = array('f', [0, 0, 0, 0])
imgTrans.fromlist(buf)
# create an output image
output = oiio.ImageOutput.create(__FILEOUT__)
# if tif format output as 16bit otherwise 8bit
if format != 'tif':
spec.set_format(oiio.UINT8)
else:
spec.set_format(oiio.UINT16)
# open and write the data transformed
output.open(__FILEOUT__, spec, oiio.Create)
output.write_image(imgTrans)
output.close()
def setUp(self):
self.file_tr = OCIO.FileTransform()
def process_look(config, gt, base_path, look_elem):
""" Build a look transform and add it to the supplied OCIO group transform. """
if not must_apply(look_elem, 'Look'):
return
#
# LookTransform ACES transformId case.
#
id_elem = look_elem.find('./aces:transformId', namespaces=NS)
if id_elem is not None:
aces_id = id_elem.text
look_name = search_looktransforms(config, aces_id)
if look_name is not None:
print('Adding Look Transform:', look_name)
gt.appendTransform( ocio.LookTransform(ACES, ACES, look_name, False, ocio.TRANSFORM_DIR_FORWARD) )
return
else:
raise ValueError("Could not find transform for transformId element: " + aces_id)
#
# LookTransform external LUT file case.
#
file_elem = look_elem.find('./aces:file', namespaces=NS)
if file_elem is not None:
lut_path = file_elem.text
if lut_path is not None:
lut_path = check_lut_path(base_path, lut_path)
print('Adding Look Transform file:', lut_path)
# Support CCC ID, if present, to identify which CDL in a CCC file to use.
ccc_id = ''
ccref_elem = look_elem.find('./cdl:ColorCorrectionRef', namespaces=NS)
if ccref_elem is not None:
ccc_id = ccref_elem.text
print('Using CCC ID:', ccc_id)
gt.appendTransform( ocio.FileTransform(lut_path, ccc_id, ocio.INTERP_BEST, ocio.TRANSFORM_DIR_FORWARD) )
return
#
# LookTransform ASC CDL case.
#
has_cdl, slopes, offsets, powers, sat = parse_cdl(look_elem)
if has_cdl:
ws_elem = look_elem.find('./aces:cdlWorkingSpace', namespaces=NS)
if ws_elem is None:
print('Adding CDL Transform')
gt.appendTransform( ocio.CDLTransform(slopes, offsets, powers, sat) )
return
#
# Attempt to load the working space transforms.
#
to_transform = load_cdl_working_space_transform(config, base_path, ws_elem, True)
from_transform = load_cdl_working_space_transform(config, base_path, ws_elem, False)
#
# Handle the four possible scenarios of working space transform availability.
#
if (to_transform is None) and (from_transform is None):
print('Adding CDL Transform')
gt.appendTransform( ocio.CDLTransform(slopes, offsets, powers, sat) )
elif (to_transform is not None) and (from_transform is not None):
print('Adding To-CDL-Working-Space Transform')
gt.appendTransform(to_transform)
print('Adding CDL Transform')
gt.appendTransform( ocio.CDLTransform(slopes, offsets, powers, sat) )
print('Adding From-CDL-Working-Space Transform')
gt.appendTransform(from_transform)
elif to_transform is not None:
print('Adding To-CDL-Working-Space Transform')
gt.appendTransform(to_transform)
print('Adding CDL Transform')
gt.appendTransform( ocio.CDLTransform(slopes, offsets, powers, sat) )
print(' Generating From-CDL-Working-Space Transform')
to_transform.setDirection(ocio.TRANSFORM_DIR_INVERSE)
print('Adding From-CDL-Working-Space Transform')
gt.appendTransform(to_transform)
elif from_transform is not None:
print(' Generating From-CDL-Working-Space Transform')
from_transform.setDirection(ocio.TRANSFORM_DIR_INVERSE)
print('Adding To-CDL-Working-Space Transform')
gt.appendTransform(from_transform)
print('Adding CDL Transform')
gt.appendTransform( ocio.CDLTransform(slopes, offsets, powers, sat) )
from_transform.setDirection(ocio.TRANSFORM_DIR_FORWARD)
print('Adding From-CDL-Working-Space Transform')
gt.appendTransform(from_transform)
data = []
for i in xrange(NUM_SAMPLES):
x = i/(NUM_SAMPLES-1.0)
x = Fit(x, 0.0, 1.0, RANGE[0], RANGE[1])
data.append(fromSRGB(x))
# Data is srgb->linear
WriteSPI1D('luts/srgb.spi1d', RANGE[0], RANGE[1], data)
cs = OCIO.ColorSpace(name='sRGB')
cs.setDescription("Standard RGB Display Space")
cs.setBitDepth(OCIO.Constants.BIT_DEPTH_F32)
cs.setAllocation(OCIO.Constants.ALLOCATION_UNIFORM)
cs.setAllocationVars([RANGE[0], RANGE[1]])
t = OCIO.FileTransform('srgb.spi1d', interpolation=OCIO.Constants.INTERP_LINEAR)
cs.setTransform(t, OCIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
config.addColorSpace(cs)
NUM_SAMPLES = 2**16+25
RANGE = (-0.125, 4.875)
data = []
for i in xrange(NUM_SAMPLES):
x = i/(NUM_SAMPLES-1.0)
x = Fit(x, 0.0, 1.0, RANGE[0], RANGE[1])
data.append(fromSRGB(x))
# Data is srgb->linear
WriteSPI1D('luts/srgbf.spi1d', RANGE[0], RANGE[1], data)
def _perform(self):
"""
Perform the task.
"""
import OpenImageIO as oiio
import PyOpenColorIO as ocio
sourceColorSpace = self.option('sourceColorSpace')
targetColorSpace = self.option('targetColorSpace')
metadata = {
'sourceColorSpace': sourceColorSpace,
'targetColorSpace': targetColorSpace
}
# open color io configuration
config = self.ocioConfig()
for crawler in self.crawlers():
# resolving the lut path
lut = self.templateOption('lut', crawler=crawler)
# adding color space transform
groupTransform = ocio.GroupTransform()
groupTransform.push_back(
ocio.ColorSpaceTransform(src=sourceColorSpace,
dst=targetColorSpace))
# adding lut transform
groupTransform.push_back(
ocio.FileTransform(lut,
interpolation=ocio.Constants.INTERP_LINEAR))
# source image
sourceImage = oiio.ImageInput.open(crawler.var('filePath'))
spec = sourceImage.spec()
spec.set_format(oiio.FLOAT)
metadata['lutFile'] = lut
pixels = sourceImage.read_image()
sourceImage.close()
transformedPixels = config.getProcessor(groupTransform).applyRGB(
pixels)
targetFilePath = self.target(crawler)
# trying to create the directory automatically in case it does not exist
try:
os.makedirs(os.path.dirname(targetFilePath))
except OSError:
pass
targetImage = oiio.ImageOutput.create(targetFilePath)
# centipede metadata information
UpdateImageMetadata.updateDefaultMetadata(spec, crawler, metadata)
success = targetImage.open(targetFilePath, spec, oiio.Create)
# saving target image
if success:
writePixels = array('d')
writePixels.fromlist(transformedPixels)
targetImage.write_image(writePixels)
else:
raise Exception(oiio.geterror())
# default result based on the target filePath
return super(FileColorTransformation, self)._perform()
def load_output_transform(config, gt, base_path, elem, is_inverse):
""" Add an OCIO transform to the supplied group transform to implement an ACES Output Transform. """
# Setup some variables based on whether it is an Output or Inverse Output Transform.
if not is_inverse:
transform_dir = ocio.TRANSFORM_DIR_FORWARD
ot_transformId_token = './aces:transformId'
ot_file_token = './aces:file'
odt_token = './aces:outputDeviceTransform'
rrt_token = './aces:referenceRenderingTransform'
msg = 'Adding Output Transform from ACES2065-1 to display: %s and view: %s'
file_msg = 'Adding Output Transform LUT file:'
else:
transform_dir = ocio.TRANSFORM_DIR_INVERSE
ot_transformId_token = './aces:inverseOutputTransform/aces:transformId'
ot_file_token = './aces:inverseOutputTransform/aces:file'
odt_token = './aces:inverseOutputDeviceTransform'
rrt_token = './aces:inverseReferenceRenderingTransform'
msg = 'Adding Inverse Output Transform to ACES2065-1 from display %s and view: %s'
file_msg = 'Adding Inverse Output Transform LUT file:'
#
# OutputTransform ACES transformId case.
#
id_elem = elem.find(ot_transformId_token, namespaces=NS)
if id_elem is not None:
build_output_transform_from_id_elem(config, gt, id_elem, msg, transform_dir)
return
#
# OutputTransform external LUT file case.
#
file_elem = elem.find(ot_file_token, namespaces=NS)
if file_elem is not None:
lut_path = file_elem.text
if lut_path is not None:
lut_path = check_lut_path(base_path, lut_path)
print(file_msg, lut_path)
gt.appendTransform( ocio.FileTransform(lut_path, '', ocio.INTERP_BEST, transform_dir) )
return
#
# Handle referenceRenderingTransform + outputDeviceTransform case.
#
odt_elem = elem.find(odt_token, namespaces=NS)
if odt_elem is not None:
#
# ACES transformId case.
#
id_elem = odt_elem.find('./aces:transformId', namespaces=NS)
if id_elem is not None:
build_output_transform_from_id_elem(config, gt, id_elem, msg, transform_dir)
return
# TODO: Could validate that the referenceRenderingTransform element exists and is
# the expected version (although since there is only one, it is not currently used).
#
# External LUT file case.
#
file_elem = odt_elem.find('./aces:file', namespaces=NS)
if file_elem is not None:
odt_path = file_elem.text
if odt_path is not None:
odt_path = check_lut_path(base_path, odt_path)
odt_transform = ocio.FileTransform(odt_path, '', ocio.INTERP_BEST, transform_dir)
# NB: Only check for an external file for the RRT if the ODT is also a file.
rrt_transform = None
rrt_elem = elem.find(rrt_token, namespaces=NS)
if rrt_elem is not None:
file_elem = rrt_elem.find('./aces:file', namespaces=NS)
if file_elem is not None:
rrt_path = file_elem.text
if rrt_path is not None:
rrt_path = check_lut_path(base_path, rrt_path)
rrt_transform = ocio.FileTransform(rrt_path, '', ocio.INTERP_BEST, transform_dir)
if is_inverse:
print('Adding Inverse ODT LUT file:', odt_path)
gt.appendTransform( odt_transform )
if rrt_transform is not None:
print('Adding Inverse RRT LUT file:', rrt_path)
gt.appendTransform( rrt_transform )
else:
if rrt_transform is not None:
print('Adding RRT LUT file:', rrt_path)
gt.appendTransform( rrt_transform )
print('Adding ODT LUT file:', odt_path)
gt.appendTransform( odt_transform )
def test_interface(self):
### AllocationTransform ###
at = OCIO.AllocationTransform()
self.assertEqual(OCIO.Constants.ALLOCATION_UNIFORM, at.getAllocation())
at.setAllocation(OCIO.Constants.ALLOCATION_LG2)
self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at.getAllocation())
self.assertEqual(0, at.getNumVars())
at.setVars([0.1, 0.2, 0.3])
self.assertEqual(3, at.getNumVars())
newvars = at.getVars()
self.assertAlmostEqual(0.2, newvars[1], delta=1e-8)
at2 = OCIO.AllocationTransform(OCIO.Constants.ALLOCATION_LG2,
[0.1, 0.2, 0.3],
OCIO.Constants.TRANSFORM_DIR_INVERSE)
self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at2.getAllocation())
self.assertEqual(3, at2.getNumVars())
newvars2 = at2.getVars()
for i in range(0, 3):
self.assertAlmostEqual(float(i + 1) / 10.0,
newvars2[i],
delta=1e-7)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
at2.getDirection())
at3 = OCIO.AllocationTransform(
allocation=OCIO.Constants.ALLOCATION_LG2,
vars=[0.1, 0.2, 0.3],
direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at3.getAllocation())
self.assertEqual(3, at3.getNumVars())
newvars3 = at3.getVars()
for i in range(0, 3):
self.assertAlmostEqual(float(i + 1) / 10.0,
newvars3[i],
delta=1e-7)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
at3.getDirection())
### Base Transform method tests ###
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_FORWARD,
at.getDirection())
at.setDirection(OCIO.Constants.TRANSFORM_DIR_UNKNOWN)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_UNKNOWN,
at.getDirection())
### CDLTransform ###
cdl = OCIO.CDLTransform()
CC = "<ColorCorrection id=\"foo\">"
CC += "<SOPNode>"
CC += "<Description>this is a descipt</Description>"
CC += "<Slope>1.1 1.2 1.3</Slope><Offset>2.1 2.2 2.3</Offset>"
CC += "<Power>3.1 3.2 3.3</Power>"
CC += "</SOPNode>"
CC += "<SatNode>"
CC += "<Saturation>0.7</Saturation>"
CC += "</SatNode>"
CC += "</ColorCorrection>"
# Don't want to deal with getting the correct path so this runs
#cdlfile = OCIO.CDLTransform().CreateFromFile("../OpenColorIO/src/jniglue/tests/org/OpenColorIO/test.cc", "foo")
#self.assertEqual(CC, cdlfile.getXML())
cdl.setXML(CC)
self.assertEqual(CC, cdl.getXML())
match = cdl.createEditableCopy()
match.setOffset([1.0, 1.0, 1.0])
self.assertEqual(False, cdl.equals(match))
cdl.setSlope([0.1, 0.2, 0.3])
cdl.setOffset([1.1, 1.2, 1.3])
cdl.setPower([2.1, 2.2, 2.3])
cdl.setSat(0.5)
CC2 = "<ColorCorrection id=\"foo\">"
CC2 += "<SOPNode>"
CC2 += "<Description>this is a descipt</Description>"
CC2 += "<Slope>0.1 0.2 0.3</Slope>"
CC2 += "<Offset>1.1 1.2 1.3</Offset>"
CC2 += "<Power>2.1 2.2 2.3</Power>"
CC2 += "</SOPNode>"
CC2 += "<SatNode>"
CC2 += "<Saturation>0.5</Saturation>"
CC2 += "</SatNode>" "</ColorCorrection>"
self.assertEqual(CC2, cdl.getXML())
cdl.setSOP([1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9])
newsop = cdl.getSOP()
self.assertAlmostEqual(1.5, newsop[4], delta=1e-8)
slope = cdl.getSlope()
self.assertAlmostEqual(1.2, slope[1], delta=1e-7)
offset = cdl.getOffset()
self.assertAlmostEqual(1.6, offset[2], delta=1e-7)
power = cdl.getPower()
self.assertAlmostEqual(1.7, power[0], delta=1e-7)
self.assertAlmostEqual(0.5, cdl.getSat(), delta=1e-8)
luma = cdl.getSatLumaCoefs()
self.assertAlmostEqual(0.2126, luma[0], delta=1e-8)
self.assertAlmostEqual(0.7152, luma[1], delta=1e-8)
self.assertAlmostEqual(0.0722, luma[2], delta=1e-8)
cdl.setID("foobar123")
self.assertEqual("foobar123", cdl.getID())
cdl.setDescription("bar")
self.assertEqual("bar", cdl.getDescription())
cdl2 = OCIO.CDLTransform([0.1, 0.2, 0.3], [1.1, 1.2, 1.3],
[2.1, 2.2, 2.3], 0.5,
OCIO.Constants.TRANSFORM_DIR_INVERSE,
'foobar123', 'bar')
slope2 = cdl2.getSlope()
offset2 = cdl2.getOffset()
power2 = cdl2.getPower()
luma2 = cdl2.getSatLumaCoefs()
for i in range(0, 3):
self.assertAlmostEqual(float(i + 1) / 10.0, slope2[i], delta=1e-7)
self.assertAlmostEqual(float(i + 1) / 10.0 + 1,
offset2[i],
delta=1e-7)
self.assertAlmostEqual(float(i + 1) / 10.0 + 2,
power2[i],
delta=1e-7)
self.assertAlmostEqual(0.5, cdl2.getSat(), delta=1e-8)
self.assertAlmostEqual(0.2126, luma2[0], delta=1e-8)
self.assertAlmostEqual(0.7152, luma2[1], delta=1e-8)
self.assertAlmostEqual(0.0722, luma2[2], delta=1e-8)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
cdl2.getDirection())
self.assertEqual('foobar123', cdl2.getID())
self.assertEqual('bar', cdl2.getDescription())
cdl3 = OCIO.CDLTransform(
slope=[0.1, 0.2, 0.3],
offset=[1.1, 1.2, 1.3],
power=[2.1, 2.2, 2.3],
sat=0.5,
direction=OCIO.Constants.TRANSFORM_DIR_INVERSE,
id='foobar123',
description='bar')
slope3 = cdl2.getSlope()
offset3 = cdl2.getOffset()
power3 = cdl2.getPower()
luma3 = cdl2.getSatLumaCoefs()
for i in range(0, 3):
self.assertAlmostEqual(float(i + 1) / 10.0, slope3[i], delta=1e-7)
self.assertAlmostEqual(float(i + 1) / 10.0 + 1,
offset3[i],
delta=1e-7)
self.assertAlmostEqual(float(i + 1) / 10.0 + 2,
power3[i],
delta=1e-7)
self.assertAlmostEqual(0.5, cdl3.getSat(), delta=1e-8)
self.assertAlmostEqual(0.2126, luma3[0], delta=1e-8)
self.assertAlmostEqual(0.7152, luma3[1], delta=1e-8)
self.assertAlmostEqual(0.0722, luma3[2], delta=1e-8)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
cdl3.getDirection())
self.assertEqual('foobar123', cdl3.getID())
self.assertEqual('bar', cdl3.getDescription())
### ColorSpaceTransform ###
ct = OCIO.ColorSpaceTransform()
ct.setSrc("foo")
self.assertEqual("foo", ct.getSrc())
ct.setDst("bar")
self.assertEqual("bar", ct.getDst())
### DisplayTransform ###
dt = OCIO.DisplayTransform()
dt.setInputColorSpaceName("lin18")
self.assertEqual("lin18", dt.getInputColorSpaceName())
dt.setLinearCC(ct)
foo = dt.getLinearCC()
dt.setColorTimingCC(cdl)
blah = dt.getColorTimingCC()
dt.setChannelView(at)
wee = dt.getChannelView()
dt.setDisplay("sRGB")
self.assertEqual("sRGB", dt.getDisplay())
dt.setView("foobar")
self.assertEqual("foobar", dt.getView())
cdl.setXML(CC)
dt.setDisplayCC(cdl)
cdldt = dt.getDisplayCC()
self.assertEqual(CC, cdldt.getXML())
dt.setLooksOverride("darkgrade")
self.assertEqual("darkgrade", dt.getLooksOverride())
dt.setLooksOverrideEnabled(True)
self.assertEqual(True, dt.getLooksOverrideEnabled())
dt2 = OCIO.DisplayTransform("lin18", "sRGB", "foobar",
OCIO.Constants.TRANSFORM_DIR_INVERSE)
self.assertEqual("lin18", dt2.getInputColorSpaceName())
self.assertEqual("sRGB", dt2.getDisplay())
self.assertEqual("foobar", dt2.getView())
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
dt2.getDirection())
dt3 = OCIO.DisplayTransform(
inputColorSpaceName="lin18",
display="sRGB",
view="foobar",
direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
self.assertEqual("lin18", dt3.getInputColorSpaceName())
self.assertEqual("sRGB", dt3.getDisplay())
self.assertEqual("foobar", dt3.getView())
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE,
dt3.getDirection())
### ExponentTransform ###
et = OCIO.ExponentTransform()
et.setValue([0.1, 0.2, 0.3, 0.4])
evals = et.getValue()
self.assertAlmostEqual(0.3, evals[2], delta=1e-7)
### FileTransform ###
ft = OCIO.FileTransform()
ft.setSrc("foo")
self.assertEqual("foo", ft.getSrc())
ft.setCCCId("foobar")
self.assertEqual("foobar", ft.getCCCId())
ft.setInterpolation(OCIO.Constants.INTERP_NEAREST)
self.assertEqual(OCIO.Constants.INTERP_NEAREST, ft.getInterpolation())
self.assertEqual(17, ft.getNumFormats())
self.assertEqual("flame", ft.getFormatNameByIndex(0))
self.assertEqual("3dl", ft.getFormatExtensionByIndex(0))
### GroupTransform ###
gt = OCIO.GroupTransform()
gt.push_back(et)
gt.push_back(ft)
self.assertEqual(2, gt.size())
self.assertEqual(False, gt.empty())
foo = gt.getTransform(0)
self.assertEqual(OCIO.Constants.TRANSFORM_DIR_FORWARD,
foo.getDirection())
gt.clear()
self.assertEqual(0, gt.size())
### LogTransform ###
lt = OCIO.LogTransform()
lt.setBase(10.0)
self.assertEqual(10.0, lt.getBase())
### LookTransform ###
lkt = OCIO.LookTransform()
lkt.setSrc("foo")
self.assertEqual("foo", lkt.getSrc())
lkt.setDst("bar")
self.assertEqual("bar", lkt.getDst())
lkt.setLooks("bar;foo")
self.assertEqual("bar;foo", lkt.getLooks())
### MatrixTransform ###
mt = OCIO.MatrixTransform()
mmt = mt.createEditableCopy()
mt.setValue([
0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3,
1.4, 1.5, 1.6
], [0.1, 0.2, 0.3, 0.4])
self.assertEqual(False, mt.equals(mmt))
m44_1, offset_1 = mt.getValue()
self.assertAlmostEqual(0.3, m44_1[2], delta=1e-7)
self.assertAlmostEqual(0.2, offset_1[1], delta=1e-7)
mt.setMatrix([
1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3,
2.4, 2.5, 2.6
])
m44_2 = mt.getMatrix()
self.assertAlmostEqual(1.3, m44_2[2], delta=1e-7)
mt.setOffset([1.1, 1.2, 1.3, 1.4])
offset_2 = mt.getOffset()
self.assertAlmostEqual(1.4, offset_2[3])
mt.Fit([0.1, 0.1, 0.1, 0.1], [0.9, 0.9, 0.9, 0.9],
[0.0, 0.0, 0.0, 0.0], [1.1, 1.1, 1.1, 1.1])
m44_3 = mt.getMatrix()
self.assertAlmostEqual(1.3, m44_3[2], delta=1e-7)
m44_3, offset_2 = mt.Identity()
self.assertAlmostEqual(0.0, m44_3[1], delta=1e-7)
m44_2, offset_2 = mt.Sat(0.5, [0.2126, 0.7152, 0.0722])
self.assertAlmostEqual(0.3576, m44_2[1], delta=1e-7)
m44_2, offset_2 = mt.Scale([0.9, 0.8, 0.7, 1.])
self.assertAlmostEqual(0.9, m44_2[0], delta=1e-7)
m44_2, offset_2 = mt.View([1, 1, 1, 0], [0.2126, 0.7152, 0.0722])
self.assertAlmostEqual(0.0722, m44_2[2], delta=1e-7)
mt4 = OCIO.MatrixTransform([
0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3,
1.4, 1.5, 1.6
], [0.1, 0.2, 0.3, 0.4], OCIO.Constants.TRANSFORM_DIR_INVERSE)
m44_4, offset_4 = mt4.getValue()
for i in range(0, 16):
self.assertAlmostEqual(float(i + 1) / 10.0, m44_4[i], delta=1e-7)
for i in range(0, 4):
self.assertAlmostEqual(float(i + 1) / 10.0,
offset_4[i],
delta=1e-7)
self.assertEqual(mt4.getDirection(),
OCIO.Constants.TRANSFORM_DIR_INVERSE)
mt5 = OCIO.MatrixTransform(
matrix=[
0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2,
1.3, 1.4, 1.5, 1.6
],
offset=[0.1, 0.2, 0.3, 0.4],
direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
m44_5, offset_5 = mt5.getValue()
for i in range(0, 16):
self.assertAlmostEqual(float(i + 1) / 10.0, m44_5[i], delta=1e-7)
for i in range(0, 4):
self.assertAlmostEqual(float(i + 1) / 10.0,
offset_5[i],
delta=1e-7)
self.assertEqual(mt5.getDirection(),
OCIO.Constants.TRANSFORM_DIR_INVERSE)
### TruelightTransform ###
"""
def make_transforms(transform_path, config):
sRGB_domain = numpy.array([0.0, 1.0])
sRGB_tf_to_linear_LUT = colour.LUT1D(
table=models.sRGB_COLOURSPACE.cctf_decoding(
colour.LUT1D.linear_table(1024, sRGB_domain)),
name="sRGB to Linear",
domain=sRGB_domain,
comments=["sRGB CCTF to Display Linear"])
sRGB_linear_to_tf_LUT = colour.LUT1D(
table=models.sRGB_COLOURSPACE.cctf_encoding(
colour.LUT1D.linear_table(8192, sRGB_domain)),
name="Linear to sRGB",
domain=sRGB_domain,
comments=["sRGB Display Linear to CCTF"])
path = os.path.join(transform_path, "sRGB_CCTF_to_Linear.spi1d")
create_directory(path)
io.write_LUT(LUT=sRGB_tf_to_linear_LUT, path=path, decimals=10)
path = os.path.join(transform_path, "sRGB_Linear_to_CCTF.spi1d")
create_directory(path)
io.write_LUT(LUT=sRGB_linear_to_tf_LUT, path=path, decimals=10)
# Off-domain 1D variant
sRGB_domain_variant = numpy.array([-0.125, 4.875])
sRGB_tf_to_linear_LUT_variant = colour.LUT1D(
table=models.sRGB_COLOURSPACE.cctf_decoding(
colour.LUT1D.linear_table(1024, sRGB_domain_variant)),
name="sRGB to Linear Variant",
domain=sRGB_domain_variant,
comments=["sRGB CCTF to Display Linear"])
sRGB_linear_to_tf_LUT_variant = colour.LUT1D(
table=models.sRGB_COLOURSPACE.cctf_encoding(
colour.LUT1D.linear_table(8192, sRGB_domain_variant)),
name="Linear to sRGB Variant",
domain=sRGB_domain_variant,
comments=["sRGB Display Linear to CCTF"])
path = os.path.join(transform_path, "sRGB_CCTF_to_Linear_variant.spi1d")
create_directory(path)
io.write_LUT(LUT=sRGB_tf_to_linear_LUT_variant, path=path, decimals=10)
path = os.path.join(transform_path, "sRGB_Linear_to_CCTF_variant.spi1d")
create_directory(path)
io.write_LUT(LUT=sRGB_linear_to_tf_LUT_variant, path=path, decimals=10)
# Define the sRGB specification
colourspace = PyOpenColorIO.ColorSpace(family="Colourspace",
name="sRGB Colourspace")
colourspace.setDescription("sRGB IEC 61966-2-1 Colourspace")
colourspace.setBitDepth(PyOpenColorIO.Constants.BIT_DEPTH_F32)
colourspace.setAllocationVars([0.0, 1.0])
colourspace.setAllocation(PyOpenColorIO.Constants.ALLOCATION_UNIFORM)
transform_to = PyOpenColorIO.FileTransform(
"sRGB_CCTF_to_Linear.spi1d",
interpolation=PyOpenColorIO.Constants.INTERP_NEAREST)
transform_from = PyOpenColorIO.FileTransform(
"sRGB_Linear_to_CCTF.spi1d",
interpolation=PyOpenColorIO.Constants.INTERP_NEAREST)
colourspace.setTransform(
transform_to, PyOpenColorIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
colourspace.setTransform(
transform_from, PyOpenColorIO.Constants.COLORSPACE_DIR_FROM_REFERENCE)
config.addColorSpace(colourspace)
# Define the sRGB specification for the variation
colourspace = PyOpenColorIO.ColorSpace(family="Colourspace",
name="sRGB Colourspace Variant")
colourspace.setDescription("sRGB IEC 61966-2-1 Colourspace variant")
colourspace.setBitDepth(PyOpenColorIO.Constants.BIT_DEPTH_F32)
colourspace.setAllocationVars([-0.125, 1.125])
colourspace.setAllocation(PyOpenColorIO.Constants.ALLOCATION_UNIFORM)
transform_to = PyOpenColorIO.FileTransform(
"sRGB_CCTF_to_Linear_variant.spi1d",
interpolation=PyOpenColorIO.Constants.INTERP_NEAREST)
transform_from = PyOpenColorIO.FileTransform(
"sRGB_Linear_to_CCTF_variant.spi1d",
interpolation=PyOpenColorIO.Constants.INTERP_NEAREST)
colourspace.setTransform(
transform_to, PyOpenColorIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
colourspace.setTransform(
transform_from, PyOpenColorIO.Constants.COLORSPACE_DIR_FROM_REFERENCE)
config.addColorSpace(colourspace)
# Define the commodity sRGB transform
colourspace = PyOpenColorIO.ColorSpace(family="Colourspace",
name="BT.709 2.2 CCTF Colourspace")
colourspace.setDescription("Commodity Display BT.709 2.2 CCTF Colourspace")
colourspace.setBitDepth(PyOpenColorIO.Constants.BIT_DEPTH_F32)
colourspace.setAllocationVars([0.0, 1.0])
colourspace.setAllocation(PyOpenColorIO.Constants.ALLOCATION_UNIFORM)
transform_to = PyOpenColorIO.ExponentTransform([2.2, 2.2, 2.2, 1.0])
transform_from = PyOpenColorIO.ExponentTransform([2.2, 2.2, 2.2, 1.0])
transform_from.setDirection(PyOpenColorIO.Constants.TRANSFORM_DIR_INVERSE)
colourspace.setTransform(
transform_to, PyOpenColorIO.Constants.COLORSPACE_DIR_TO_REFERENCE)
colourspace.setTransform(
transform_from, PyOpenColorIO.Constants.COLORSPACE_DIR_FROM_REFERENCE)
config.addColorSpace(colourspace)
