Another simple idea

Scouser

Ok I had this idea to animate some grass but without actually changing the images. Instead I used the matrix:setElements to distort the image by shearing it. This has the effect of shifting the top of the image left or right by a few pixels whilst keeping the bottom fixed in place.

I used 3 sections of a texture page and placed 50 grass sections on the floor, these are then randomly sheared to give a nearly realistic grass blowing in the wind effect.

Comments are welcome.

Enjoy.

GregBUG

nice! scouser!
and run smooth even on my slow and old ipod 2^gen.!

also is a good example of matrix usage!

thanks!

Scouser

You're welcome. I must say that it is my intention to make sure that as many people as possible are given the opportunity to develop their skills. If I can help them to do so then so much the better.

alexzheng

great!!
I had the same idea when make my cat fishing game.
I planned to make a swimming animation by matrix, but it requires some tricks.