Convert Screen Capture to base64

[BSUGeek]

I was wondering how do you convert a screen capture of the running scene to base64 and put the base64 data into a file?

[farshizzo]

Here is a sample script that will save the raw image data of the screen to a base64 encoded file when the spacebar is pressed:

import viz
import viztask
import base64

viz.go()

model = viz.addChild('maze.osgb')

def SaveScreenTask():

	while True:

		# Wait for key press
		yield viztask.waitKeyDown(' ')

		# Capture screen to texture
		texture = viz.addBlankTexture([1,1])
		viz.window.screenCapture(texture)

		# Wait a frame for image to be captured
		yield viztask.waitFrame(1)

		# Save raw texture data to base64 encoded buffer
		data = base64.b64encode(texture.saveToBuffer('<raw>'))

		# Save data to file
		with open('screen_data', 'wb') as f:
			f.write(data)

		# Remove texture
		texture.remove()

viztask.schedule( SaveScreenTask() )