I can visualize the effect you are aiming at.I guess doing this will require pushing in different images onto the same imageView, with incremental frame rate.|
The accuracy will depend on the number of images you have. Greater the number of images finer will be the precision.
Also you need to implement incremental frame rate. So that it gives a smoother feel.
Doing this should be possible using a simple loop to change the image resource of the imageView Controller. There must be lag between two iterations, this lag will actually be the frame rate.
I think this can give satisfactory results.
Going for openGL, however, you will not need all these images. It will just require one image of the card that will be animated and duplicated to create the final image. This however is a complex piece of task(I think) so if you are catching some dead lines, you must go for a non-openGL solution like the 1st one, I have suggested.
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