Description

The sample demonstrates the ability to change material of an object dynamically.
To create an effect of gradual disappearance of the tape housing, several materials with different transparency factor have been created beforehand.

Scenario

Actor: Rotor   
Actor: RollBig
Commands=1
0 999 Rotate 0 5 0

Actor: RollSmall
Commands=1
0 999 Rotate 0 10 0

Actors:  CoverTop and CoverBottom
Commands=14
  2   2 Material PlexiGlass\Transparency-40
  3   3 Material PlexiGlass\Transparency-50
  4   4 Material PlexiGlass\Transparency-60
  5   5 Material PlexiGlass\Transparency-70
  6   6 Material PlexiGlass\Transparency-80
  7   7 Material PlexiGlass\Transparency-90
  8   8 Material PlexiGlass\Transparency-100
11 11 Material PlexiGlass\Transparency-90
12 12 Material PlexiGlass\Transparency-80
13 13 Material PlexiGlass\Transparency-70
14 14 Material PlexiGlass\Transparency-60
15 15 Material PlexiGlass\Transparency-50
16 16 Material PlexiGlass\Transparency-40
17 17 Material PlexiGlass\Transparency-30

Actors: CoverTopWindow and CoverBottomWindow
Commands=12
  2   2 Material PlexiGlass\Transparency-50
  3   3 Material PlexiGlass\Transparency-60
  4   4 Material PlexiGlass\Transparency-70
  5   5 Material PlexiGlass\Transparency-80
  6   6 Material PlexiGlass\Transparency-90
  7   7 Material PlexiGlass\Transparency-100
12 12 Material PlexiGlass\Transparency-90
13 13 Material PlexiGlass\Transparency-80
14 14 Material PlexiGlass\Transparency-70
15 15 Material PlexiGlass\Transparency-60
16 16 Material PlexiGlass\Transparency-50
17 17 Material PlexiGlass\Transparency-40

Material  PlexiGlass\Transparency-30

Material  PlexiGlass\Transparency-70

Material  PlexiGlass\Transparency-100

Notes

MaterialName parameter of Material consists of the name of material category and the name of material. 
For example:
Transparency-80 material from PlexiGlass category is written as 
PlexiGlass\Transparency-80