Exercises (DLP for Virtual Environments (I)) 1. Design a DLP program to implement a rolling text, namely, the text can move along Y-dimension from down to up. You can design your own vrml file, or download it from the website: http://wasp.cs.vu.nl/mma2/examples/vrml/title/title7.wrl 2. Based on the moving title example 3, design a DLP program to implement moving titles in which the texts and the colors of the titles are changed regularly, using the following fact format: title_text(1, 'Multimedia Authoring II’, red):-!. title_text(2, 'Flying Title Example’, yellow):-!. title_text(3, 'Changing Title Strings’, green):-!. ...... The vrml file is available at: http://wasp.cs.vu.nl/mma2/examples/vrml/title/title2.wrl *3. Design a DLP program to implement your own moving title example. (To be creative!)