woensdag 3 april 2013

Morphing in Giana Sisters: Twisted Dreams

Giana Sisters: Twisted Dreams is a game developed by an indie developer called
Black Forest Games.
The game shows some interesting asset morphing since it transforms the entire level in two or three seconds.

http://www.youtube.com/watch?v=kzZ-xxx8_30&feature=player_embedded

http://www.youtube.com/watch?v=V-UBunMYik0&feature=player_embedded

Here they explain a bit about the process of the game. However I would have loved a more detailed description it does give an explanation as to my previous problem when I tried to blend shape the whole model and the model broke. It gave a similar result in the video below.

http://www.youtube.com/watch?v=GGR_PB5r-is&feature=player_embedded

The reason is the vertex order of the model, it seems that it can change when it is being duplicated, adjusted in position or when it combines. I am not sure how you can check the order or if it is possible to change it.
The problem also seem to arise for people who use a 3D sculpting program and go from Zbrush to Maya or Max, adjust some stuff and go back.

I did find a solution for this problem with blend shapes and that is to duplicate the starting model en snap the vertices to the transformed model piece. This is however a very time consuming and tedious solution.

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