Wing Flapping Cycle

3deeguy · Post by **3deeguy** » Sun Apr 03, 2011 6:43 pm

Are there any tutorials on flying birds? I have ASP.7. My biggest problem is how vectors display the transition from the underside of the wing to the topside. I get a 'figure 8' effect which is what I want to eliminate. Group layers seem to work better than bone layers for me. I like morph targets. My main challenge is a 3/4 view. I've been trying to come up with something acceptable for a couple of weeks and I'm starting to get discouraged.

slowtiger · Post by **slowtiger** » Sun Apr 03, 2011 7:51 pm

Any object which is seen from different sides in motion can best be tackled with a switch layer. Depending on how complex your bird is, you may have two bone layers inside a switch layer, and in each bone layer one or more vecor layers.

3deeguy · Post by **3deeguy** » Mon Apr 04, 2011 4:22 am

Perhaps I should begin by learning how to animate a coin flip. It is the most basic form of what I want to do. Thank you, I will give it a try.

jahnocli · Post by **jahnocli** » Mon Apr 04, 2011 1:46 pm

In "Timing for Animation" (Whitaker and Halas), p109, there is a 3/4 view of a bird flying sequence. It's a good book -- you should have it anyway if you're interested in animation!

3deeguy · Post by **3deeguy** » Mon Apr 04, 2011 3:09 pm

jahnocli, you are absolutely right. I just saw a few pages of the pdf online and I agree it is a 'must have' book! Thanks.

3deeguy · Post by **3deeguy** » Wed Apr 06, 2011 6:59 pm

I posted a YouTube video to show my progress on animating a bird wing. I used point movement. I used reference photos on the timeline. As the wing was rising I included a layer I called "patch" to supply a fill color for the area that would have been left blank where the vector crosses itself. It isn't perfect but I think it's passable. I can't get the effect I want with a bone layer and I haven't figured out how to take advantage of a switch layer. The feedback from this community is very helpful.

http://www.youtube.com/watch?v=A6qs12XnRDU[/url]

slowtiger · Post by **slowtiger** » Wed Apr 06, 2011 10:18 pm

Have a look at this:

This is the very image I used as a reference when I animated my first bird.

jahnocli · Post by **jahnocli** » Wed Apr 06, 2011 10:38 pm

Well, that is the sequence on page 109 that I referred to...but thanks for showing it...

3deeguy · Post by **3deeguy** » Thu Apr 07, 2011 2:08 am

Slowtiger, That sequence is perfect. jahnocli pointed me to "Timing for Animation"where I saw that image and I downloaded the entire 194 page pdf.

You said that if I'm going to show two sides of an object I will need a switch layer. When I read that I knew it was correct. I just have to figure out how I'm going to do it.

You cannot believe how much fun this is for me. I'm still working on creating a flapping cycle using a switch layer and a bone layer instead of a "patch".

slowtiger · Post by **slowtiger** » Thu Apr 07, 2011 9:37 am

It all depends on the style you want. You can do a very basic bird flight with about 4 drawings, or you can do full animation. Sometimes an action seen from this angle is best done with frame-by-frame in a switch layer - I know that I can do that faster than sitting down and planning some work-saving set-up.

Birds fly at very different speeds, from 12-90 Hz of the colibri to slow flappings of 0,5 Hz of bigger birds. Depending on species and the desired effect you could give the impression of flapping wings with lots of different techniques.

benecosse · Post by **benecosse** » Thu Apr 07, 2011 3:53 pm

good examples of a bird flight, thanks

3deeguy · Post by **3deeguy** » Thu Apr 07, 2011 3:57 pm

I want to animate a large raptor with long broad wings gliding and gently flapping. In addition to what I'm learning in this thread I'm also studying video on YouTube as well as photos I've taken.

(When I finally get it right I may even use a flying bird as a profile gif. I have a lot of respect for what it takes to make it happen.)

3deeguy · Post by **3deeguy** » Fri Apr 15, 2011 11:15 pm

I just posted an unlisted YouTube video to show my progress to this community. There are a lot of bugs in the animation. You would have to know where I started to appreciate what I've done so far.

Before I joined this forum I wasn't sure I could do this. Everyone, especially those who've reached out to me continue to be a tremendous help to me. It will still take a few weeks to finish my project but I have confidence now frankly because I know this community is here. http://www.youtube.com/watch?v=23XVDFdtsUA

jahnocli · Post by **jahnocli** » Sat Apr 16, 2011 11:25 am

Looks good! One suggestion would be: as the wings beat down, the body raises slightly, then falls slowly until the next wing beat.