from psychopy import core, visual, event

#create a window to draw in
myWin = visual.Window((600,600), allowGUI=False, rgb=(-1,-1,-1))

#INITIALISE SOME STIMULI
faceRGB = visual.AlphaStim(myWin,tex='face.jpg',
    mask=None,
    rgb=[1.0,-1.0,1.0],
    pos=(0.0,0.0),
    size=(1.0,1.0),
    sf=(1.0, 1.0))
faceALPHA = visual.AlphaStim(myWin,pos=(-0.5,0),
    tex="sin",mask="face.jpg",
    rgb=[1.0,1.0,-1.0],
    size=(0.5,0.5), sf=1.0, units="norm")
message = visual.TextStim(myWin,pos=(-0.95,-0.90),
    text='Hit Q to quit', rgb=1)

t=lastFPSupdate=0
framePeriod=1.0/60.0
while True:
    t=t+framePeriod
    faceRGB.setOri(1,'+')#advance ori by 1 degree
    faceRGB.draw()

    faceALPHA.setPhase(0.01,"+")#advance phase by 1/100th of a cycle
    faceALPHA.draw()

    message.draw()

    myWin.flip()

    #handle key presses each frame
    for keys in event.getKeys():
        if keys in ['escape','q']:
            core.quit()
    event.clearEvents()