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Anyway...

You know how you go on a trip or a vacation... you get back to your "normal" life and you wish some of it could be like it was in that "different" place?

Well... I took a "trip" to a "different place"... specifically... I was using something not called Animation:Master. I came up with this experimental kind of thing... using motion blur.

So... here I am playing with A:M again and I am trying to bring some of that experience back with me.

This image used motion blur with a sub frame action (like those light jitter rigs). The inspiration was the movie Andromeda Strain... 1974... no computer graphics back then... they did this kind of effect almost the same way I did this one... by moving a rotated "image" and exposing the film over time.

[attachmentid=18755]

It is a simple mesh grid with a cookie-cut decal. The action moves the model up and down in the y axis. The effect is not exactly what I was after but it's getting there. I rendered with multi-pass at 64.

Is there a way to somehow... use keyframe interpolation with in a sub frame multi-pass render? i would like the motion to... linger... a tad longer at the "top" and "bottom" of the motion. This gives it a really cool kind of look... the top and bottom part of the image would be "stronger" because of the animation curves.

Any other tips for this technique (which has no purpose or goal whatsoever) I welcome them.

-vern

Maybe I'm misunderstanding what you want, but it seems to me that you've answered your own question. When you keyframe your object to move up and down, make sure the timeline is a smooth spline rather than straight line, set the up/down motion to be vaguely sinusoidal, and then tweak the gamma of each CP (in the timeline) to flatten out the peaks and troughs.

An entirely different approach would be to not use motion blur, but simply model the entire object and give it transparency and density that is controlled by a gradient material. That way any surface that directly faces the camera will be relatively see-through, and any surface that faces ninety degrees away will be optically thicker. Add a glow effect for that slight neon look. Or add a very rapid (sub-frame) repeating jitter action to get a spooky motion-blur-when-stationary look.

You can create an action with multiple keyframes and then scale it's duration. The keyframes still exist, but now at a sub frame level. You can still edit thier interpolation as you would any keyframe.

I tried that... but for some reason the multpass "steps" were still evenly distributed. I would have expected on an 64 pass render... and an action that was the length of one frame I would have gotten a tighter grouping of passes (brighter) at the top and bottom using a modified spline interpolation on the key frames... uh... as you can see i didn't get that result.

I am using v12 on the Mac... so... maybe I need to switch to the PC... <sigh>

In my other thread on this topic... the suggestion was to use HDR image for the decal.. so it will be whiter than "white" when averaged on the motion blur.

This sounds cool... lots of options with that technique.

-vern

What if you simply put copies of the original at the begining and end and use the original to create the blur from one to the other? You could adjust the blur and translucency/transparencey of the stationary copies independently to get exactly the crispness or fuzziness you desire. I bet you could even get an effect where it starts in one color and ends in another, transitioning in the motion blurred part.

Pretty cool effect so far, Vern!



Bill Gaylord