KVR Audio

Hlis93 · Post by **Hlis93** » Fri Jul 10, 2009 3:19 pm

I need some help. I am trying to make an animation to display the rate of an LFO. The problem that I am having is that I cant seem to figure out how to the get the horizontal bar to smooth ita rotation to the center of the yellow circle and move left to right on a horizontal line at the ohter end smoothy. In the animation you'll see that its not steady or smooth. Any ideas? I'm lost at this point with it.

.knob file http://www.box.net/shared/30hld8jujp

JediMind · Post by **JediMind** » Fri Jul 10, 2009 3:46 pm

I could be wrong, but I think the wobble is determined by the angle of the 4th layer. The 1st and 2nd seem to rotate together perfectly.

Edit: I'll play with the Offsets and see if I can come up with something

Kriminal · Post by **Kriminal** » Fri Jul 10, 2009 4:08 pm

you need to get the red line set to a fixed postion in the yellow circle to get the line to run smooth

Hlis93 · Post by **Hlis93** » Fri Jul 10, 2009 4:09 pm

JediMind wrote:I could be wrong, but I think the wobble is determined by the angle of the 4th layer. The 1st and 2nd seem to rotate together perfectly.

Edit: I'll play with the Offsets and see if I can come up with something

yes, the the layer I'm having a problem with, the 4th layer the red rec primative. The 1st & 2nd are just simple rotation on the center axis and the third is static. I focused on trying to the red bar to hit the center point of the yellow circle at 0, 90, 180, 360 hoping the rest would smooth but it didn't.

TheSteven · Post by **TheSteven** » Fri Jul 10, 2009 4:30 pm

The problem with the forth layer is that the red bar changes length proportionally to the angle, the greater the angle the shorter the bar.
If this could be changed then you could have it accurately track the yellow circle.

...Steven

Hlis93 · Post by **Hlis93** » Fri Jul 10, 2009 4:54 pm

The size should be constant? The offsets are set to slide it red rect left to right and rotate the line up & down with the X-axis set the far left of the rect, this should not effect the size at all.

TheSteven · Post by **TheSteven** » Fri Jul 10, 2009 5:44 pm

It shouldn't (effect the size) but if you check the rotation you can see that the vertical size appears to be about 2/3 (at least on my monitor) of the horizontal size - causing the right end of the bar to travel in an ellipse instead of a circle. Setting the zoom property doesn't help because that only changes the beginning and ending sizes. It looks like you would have to do at least 2 animations using zoom to keep the length constant and slice them together to have it track properly.

It could be that I'm just not familiar enough with Knobman (I just recently started playing with it) - I don't think this is really a bug because it could be useful under certain circumstances but rather the lack of a feature/option to maintain constant length/proportions when an object is rotated.

edited: content for clarity & fix typos

...Steven

TheSteven · Post by **TheSteven** » Fri Jul 10, 2009 6:10 pm

I've changed the angle property to demonstrate the length issue of the red bar.
There is also a problem with the left edge not staying at a vertical fixed point.

Here's another shot using Curve1 instead of Curve2 for the red line...

...Steven

Hlis93 · Post by **Hlis93** » Sat Jul 11, 2009 12:19 am

I moved the rotation X-axis to -35 and played with the animation curve as much as I could it start to smooth out but it still not right. Not sure if its is the size is changing I dont think it is, I did it with a .png and got the same effect, I think its in the animaiton curve and the way it has to move. I'll get to play with it some more tonight.

alterex_vst · Post by **alterex_vst** » Sat Jul 11, 2009 10:02 am

I've took a quick look at the .knob file. My idea is that the animation curve needs more points; but knobman lacks that

.

The curve now is like a triangle waveform; my idea is that it needs a ..more.. sine waveform. I got the top of the animation nearly perfect in 5 minutes. Isn't it an idea to cut up the animation? The first 25 animated pics run on curve 2 - the alpha goes to 0%. The second animationcurve starts at frame 26 and continues the animationcurve (for instance) 3 (a new animation curve).

Hlis93 · Post by **Hlis93** » Sat Jul 11, 2009 11:51 am

alterex_vst wrote:I've took a quick look at the .knob file. My idea is that the animation curve needs more points; but knobman lacks that .

The curve now is like a triangle waveform; my idea is that it needs a ..more.. sine waveform. I got the top of the animation nearly perfect in 5 minutes. Isn't it an idea to cut up the animation? The first 25 animated pics run on curve 2 - the alpha goes to 0%. The second animationcurve starts at frame 26 and continues the animationcurve (for instance) 3 (a new animation curve).

yes, I came to the same conclusion last night it needs more points on the animation curve.

alterex_vst · Post by **alterex_vst** » Sat Jul 11, 2009 1:44 pm

I think the option of making 2 images with 2 animation curves should work. Downside is maybe the lighting...

By the way Jonathan; do you have wood textures that go well in skinman?

Hlis93 · Post by **Hlis93** » Sat Jul 11, 2009 1:50 pm

alterex_vst wrote:I think the option of making 2 images with 2 animation curves should work. Downside is maybe the lighting...

By the way Jonathan; do you have wood textures that go well in skinman?

Honestly have not tried. I will give it go today and if I come up with anything I post it up. I got a few plug-ins for PHS last week, gifts I'm still trying to figure out what to do with them

, one of them makes wood texture this is an good an excuse as any to try it out, it should allow me to reduce the colors to a gray scale.

Hlis93 · Post by **Hlis93** » Sat Jul 11, 2009 2:44 pm

OK....(edit see post below)

alterex_vst · Post by **alterex_vst** » Sat Jul 11, 2009 2:55 pm

Thanks heaps

.

KnobMan/SkinMan Examples