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  #1  
Old 09-22-2020, 10:26 AM
Roy Roy is offline
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Join Date: Dec 2019
Posts: 5
Adding a lot of Avatars

Hello,

How to add many avatars at once?
If we try to add 100 different avatars, do we need to use 'addAvatar()' for each avatar?

Thanks
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  #2  
Old 09-25-2020, 01:22 PM
sado_rabaudi sado_rabaudi is offline
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Join Date: Jul 2016
Posts: 11
You can note it all down in a list and iterate through it. Here's a sample script for it.

import viz

viz.clearcolor(viz.SKYBLUE)

avatar_files = ['vcc_male.cfg', 'vcc_female.cfg', 'vcc_male2.cfg']
avatars = []
position = 0
for i in avatar_files:
new = viz.addAvatar(i, pos = (position*2, 0, 4), euler=(180,0,0))
avatars.append(new)
position += 1

viz.go()
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  #3  
Old 09-26-2020, 11:34 AM
Roy Roy is offline
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Join Date: Dec 2019
Posts: 5
Hi Sado,

How about animations for each avatar?
If animation is added by 'state()', do every avatars have different animations?
I tried to make 2avatars x 15 animations list, and show them in random order as program below. But the same avatar with same animation is shown.

Code:
avatar_files = ['vcc_male.cfg', 'vcc_female.cfg']#2avatars
animation = range(1,16)#default 15 animations

#make 30 stimuli list (2avatars x 15animations), and shuffule the order
stimulus = []
for i in avatar_files:
	for j in animation:
		avatarAnim = viz.addAvatar(i, pos=(0,0,0), euler=(180,0,0))
		avatarAnim.state(j)
		avatarAnim.visible(viz.OFF)
		stimulus.append(avatarAnim)
random.shuffle(stimulus)

def experiment():
	yield viztask.waitKeyDown(viz.KEY_RETURN)
	for trial in stimulus:
		yield viztask.waitTime(1)
		avatarAnim.visible(viz.ON)
		yield viztask.waitKeyDown(viz.KEY_RETURN)
		avatarAnim.visible(viz.OFF)

viztask.schedule(experiment())
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  #4  
Old 09-28-2020, 11:54 PM
kennethkarthik kennethkarthik is offline
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Join Date: Jul 2018
Posts: 6
Hi Roy,

There was just a bug in your code. You were setting "avatarAnim" to visible off and on states in your experiment function instead of using "trial" which would iterate between your shuffled states.

Code:
import viz
import random
import viztask

avatar_files = ['vcc_male.cfg', 'vcc_female.cfg']#2avatars
animation = range(0,16)  #default 15 animations

viz.go()

piazza = viz.addChild('piazza.osgb')


#make 30 stimuli list (2 avatars x 15 animations), and shuffle the order
stimulus = []
for i in avatar_files:
	for j in animation:
		avatarAnim = viz.addAvatar(i, pos=(0,0,0), euler=(180,0,0))
		avatarAnim.state(j)
		avatarAnim.visible(viz.OFF)
		stimulus.append(avatarAnim)
print(stimulus)
random.shuffle(stimulus)
print(stimulus)

def experiment():
	yield viztask.waitKeyDown(viz.KEY_RETURN)
	for trial in stimulus:
		yield viztask.waitTime(1)
		trial.visible(viz.ON)
		yield viztask.waitKeyDown(viz.KEY_RETURN)
		trial.visible(viz.OFF)

viztask.schedule(experiment())
Check this and let us know if this was your intended experiment. Thanks
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  #5  
Old 10-04-2020, 02:36 AM
Roy Roy is offline
Member
 
Join Date: Dec 2019
Posts: 5
Hi kennethkarthik,

Thank you, it works!
But I'm wondering any other way to add avatars.
In this program, 2 avatars are loaded 15 times, causing long time to run the program.
Any ideas?

Thanks
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  #6  
Old 10-05-2020, 03:41 PM
kennethkarthik kennethkarthik is offline
Moderator
 
Join Date: Jul 2018
Posts: 6
Hey Roy,

Vizard does it's optimisation when it reuses objects. However if you do want to improve load time, I would suggest just changing the state of your characters on the same avatar instead of adding a new one for each animation state. Check out the code below

Code:
import viz
import random
import viztask

avatar_files = ['vcc_male.cfg', 'vcc_female.cfg']#2avatars
animation = range(0,16)  #default 15 animations

viz.go()

piazza = viz.addChild('piazza.osgb')


#make 30 stimuli list (2 avatars x 15 animations), and shuffle the order
avatars = []
for i in avatar_files:
	avatarAnim = viz.addAvatar(i, pos=(0,0,0), euler=(180,0,0))
	avatarAnim.visible(viz.OFF)
	avatars.append(avatarAnim)
	
def experiment():
	yield viztask.waitKeyDown(viz.KEY_RETURN)
	for i in avatars:
		i.visible(viz.ON)
		for state in animation:
			yield viztask.waitTime(0.5)
			i.state(state)
			yield viztask.waitKeyDown(viz.KEY_RETURN)
		i.visible(viz.OFF)

viztask.schedule(experiment())
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