def test_DisplayGamma(self):
# Check that the display gamma functions work too
self.assertTrue(
Gf.ApplyGamma(Gf.Vec3f(.5, .5, .5), 2.2) ==
Gf.ConvertDisplayToLinear(Gf.Vec3f(.5, .5, .5)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec3d(.5, .5, .5), 2.2) ==
Gf.ConvertDisplayToLinear(Gf.Vec3d(.5, .5, .5)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec4f(.5, .5, .5, .8), 2.2) ==
Gf.ConvertDisplayToLinear(Gf.Vec4f(.5, .5, .5, .8)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec4d(.5, .5, .5, .8), 2.2) ==
Gf.ConvertDisplayToLinear(Gf.Vec4d(.5, .5, .5, .8)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec3f(.5, .5, .5), 1.0 / 2.2) ==
Gf.ConvertLinearToDisplay(Gf.Vec3f(.5, .5, .5)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec3d(.5, .5, .5), 1.0 / 2.2) ==
Gf.ConvertLinearToDisplay(Gf.Vec3d(.5, .5, .5)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec4f(.5, .5, .5, .8), 1.0 / 2.2) ==
Gf.ConvertLinearToDisplay(Gf.Vec4f(.5, .5, .5, .8)))
self.assertTrue(
Gf.ApplyGamma(Gf.Vec4d(.5, .5, .5, .8), 1.0 / 2.2) ==
Gf.ConvertLinearToDisplay(Gf.Vec4d(.5, .5, .5, .8)))
def _OnPushed(self):
if self.valueType.dimension in (3, 4):
options = QtWidgets.QColorDialog.ColorDialogOptions()
displayColor = QtGui.QColor(
*[255 * v for v in Gf.ConvertLinearToDisplay(self.value)])
if self.valueType.dimension == 4:
options = QtWidgets.QColorDialog.ShowAlphaChannel
newColor = QtWidgets.QColorDialog.getColor(displayColor, self,
unicode(self.valueType),
options)
if newColor.isValid():
if self.valueType.dimension == 3:
value = (newColor.red(), newColor.green(), newColor.blue())
elif self.valueType.dimension == 4:
value = (newColor.red(), newColor.green(), newColor.blue(),
newColor.alpha())
value = self.valueType(*(v / 255.0 for v in value))
value = Gf.ConvertDisplayToLinear(value)
self.value = self.valueType(*(round(v, 2) for v in value))
self._changed = True
def _ConvertColorsToLinear(self, colors):
results = []
for color in colors:
results.append(Gf.ConvertDisplayToLinear(color))
return results
def _Color(r, g, b):
# for this tutorial, the colors i got are not in linear space.
from pxr import Gf
return Gf.ConvertDisplayToLinear(Gf.Vec3f(r, g, b))
