def test_envelopeBeatAndRaisedCos(self):
win = self.win
size = numpy.array([2.0, 2.0]) * self.scaleFactor
if win.units in ['norm', 'height']:
sf = 5
else:
sf = 5.0 / size #this will do the flipping and get exactly one cycle
if win._haveShaders == True: # can't draw envelope gratings without shaders so skip this test
image = visual.EnvelopeGrating(win,
carrier='sin',
envelope='sin',
size=size,
sf=sf,
mask='raisedCos',
ori=-45,
envsf=sf / 2,
envori=45,
envphase=90,
beat=True,
moddepth=0.5,
contrast=0.5)
image.draw()
utils.compareScreenshot('beatandrcos_%s.png' % (self.contextName),
win)
win.flip()
"{}".format(image)
frameDur = 1.0 / 60.0 # could not measure, so guess
# Initialize components for Routine "trial"
trialClock = core.Clock()
env_grating = visual.EnvelopeGrating(win=win,
name='env_grating',
carrier='sin',
mask=None,
ori=0,
pos=(0, 0),
size=(0.5, 0.5),
sf=1.0,
phase=0.0,
color=[1, 1, 1],
colorSpace='rgb',
opacity=1,
contrast=0.5,
texRes=128,
envelope='sin',
envori=0.0,
envsf=1.0,
envphase=0.0,
power=1.0,
moddepth=1.0,
blendmode='avg',
beat=False,
interpolate=True,
depth=0.0)
if sys.version[0] == '3' and np.min(win.gamma) == None:
logging.warning(
'Envelope grating in use with no gamma set. Unless you have hardware gamma correction the image will be distorted.'
)
