What I would like to do is this:

I'm a Car nut, so I'd like to know how to set up the animation in poser to produce clean accurate motion blur on the background scene, as well as the circular motion of the spinning wheels, but leaving complete clarity in the body of the car.

I'm looking for tried and true info. (screen shots of settings please)

I realize this is a complex answer I'm asking for, but I need:

• detailed animation settings. ( # of frames to use )

• value of rotation over the course of frames on each wheel.

• value of distance over the course for frames on the car body with camera parented to it.

I also was wondering how you remove animation data from a scene... in case I make a mess.

using Poser Pro 2012 SR3.

Thanks for your help

Would you like me to model the car, and render it out for you as well?

take no notice of forum trolls.

but what you are askin is a lot, and a lot here dont have the time to do all of this for you.

someone may.

but I would not move the car in the animation, keep that as it is. but move the back ground and the wheels

so good luck and have fun

Quote - What I would like to do is this:

I'm a Car nut, so I'd like to know how to set up the animation in poser to produce clean accurate motion blur on the background scene, as well as the circular motion of the spinning wheels, but leaving complete clarity in the body of the car.

I'm looking for tried and true info. (screen shots of settings please)

I realize this is a complex answer I'm asking for, but I need:

• detailed animation settings. ( # of frames to use )

That would depend on how long an animation you wanted. If you need web based animation, 18-24fps could work (24fps being 16mm film shutter speed). There are a lot of variables there, so you would have to experiment, or get the advice of someone who does web vid regularly (the basic idea is to keep data size down, as not everyone is on a high speed connection). For digital viewing (computer, TV, etc), 30 fps is pretty much the standard. Take how many seconds you want x30, and that is how many frames you want.

Quote - - value of rotation over the course of frames on each wheel.

Oi.  You almost never see such an effect due to the actual numbers involved in real world simulation of a rotating cylinder. Circumfrence is pi times the radius squared. What you would want is a repeating rotation that resets within a set number of frames, so you could copy-paste that small rotation onto the dope sheet however many times you want. Deriving that number depends on a lot of factors: implied speed of the vehicle, implied distance travelled to get that neat sequence so that the rotation of a wheel starts and ends on the same value each time (this does not allow for aceleration or deceleration; just a steady speed). The radius of the tire and the circumfrence figure into it as well. The math doesn't really go beyond geometry, but you have to think your way through the process, and be ready to adjust it until it =looks= right. That is the most important thing; and looking right is done solely with the Mark 1 eyeball. > Quote - - value of distance over the course for frames on the car body with camera parented to it.

Again, it depends on the vehicle size, the terrain size, and the implied speed you are trying to achieve.

Quote -   I also was wondering how you remove animation data from a scene... in case I make a mess.

And you will, young padawan. You will..... 8D

This part is easy; call up the keyframe editor (ie:the dopesheet). Expand the part name you want to adjust. L click on a frame you don't like, and hit delete. This will only affect the single value you clicked on. If you click and hold the button, then drag, you can delete values horizontally or vertically. Just highlight them and hit delete.

I would also advise you to learn the graph editor, your new best friend if you are animating. It is much faster adjusting a value there, and you can see if your action does anything wonky to other values (and with Euler angles and quaternion interpolation, it will).

Quote -    

using Poser Pro 2012 SR3.

Thanks for your help

Just keep in mind that motion blur is a runtime effect; it's generated at render time, and it will slow the render down significantly (and that is just about anyone's renderer; it's a matter of the math needed) 

Soultaker - thanks, I hear ya about the trolls :)

I'm not asking anyone to do anything for me. Only to share their experience if it interests them to do so.

Maybe crack open a project file they have and take some screen shots to help illustrate their response.

I can't be the first person to ever want to get a blur effect in my still frame render of a car in motion :) lol

I'll keep your suggestion in mind about moving the background instead of the car - a worthy aproach :)

Dale B - This is exactly the kind of helpful response I needed.  Thank you for your time and info.

It seems that certain people find different areas of the program more interesting than others, and due to that interest gain more knowledge in that specific area.

Honestly, I have no real interest in creating animations, but in order to get motion blur I need to use it a bit :)

Based on your response, a little motion may be better than a bunch - I went too high on wheel spin values in my initial attempt.

I'll tinker some more on a test scene with low poly background and car body shape.... but use high poly wheels and tires so i can judge the effect at render time.

I'll even give the math a try, if all else fails, lol

again, sincere thanks to you both :)

-Brett

I got the motion blur effect I wanted for the wheel spin....

CLICK ON THE IMAGE - and then CLICK ON OPEN ORIGINAL - it's easier to read my instructions and see the settings.

Not complicated at all!

These settings should work for anyone to get a nice wheel spin motion in a still render.

I'll post again when I figure out the background motion.

Look at me contributing to the knowledgebase, lol.

I have no idea whether this will be of use or interest - it's very old.

Quick and easy motion blur stills

http://www.runtimedna.com/forum/showthread.php?7126-Quick-and-easy-motion-blur-stills&p=75346 

motion blur of a still (or of an animation frame) is made by making two renders and merging them. In other words; it's all relative to the camera. The camera settings determine the timing (within a frame) of both shots, by default the shutter opens at the frame start and closes at 50% of the frame duraction.

If you want the car to stand still (aka: no motion, no blur) then it's well adviced to move the camera with the car, or the other way around. Parent one to the other, or parent both to a null/dummy/invisible object. Or, rotate the wheels, move the scene, and let the car stand still. This is about what Sydd did in the tutorial mentioned above, if I read that thread correctly.

Personally, especially when the image is quite large and rendering takes a lot of time, I prefer to make one large hiQ render and one smaller, less Q render of the next frame, and merge them in Photoshop (and mask out the car in the second layer) so I'm finished faster and I can control the result far better. For merging video streams I do the same using Premiere or so (and I always render animations as an image collection, compression is done in the last step). Don't do in 3D what can be done in 2D.

just my 2 cents.

Perfect!

That's just what I was looking for.

All questions answered, mysteries unlocked :)

I'm actually excited to get home and try this.

Thanks to all.

will look forward to seeing the finished image

Ok, we'll I gave this a try, but the memory required was more than 8GB.

maybe 2D is a better option.

Quote - motion blur of a still (or of an animation frame) is made by making two renders and merging them.

Two? Are you sure? I must be really confused in what I'm understanding. Last time I did a rotating motion blur, it produced an arc, not just beginning and ending position, nor a linear interpolation between those, but rather a full rendering of many positions blended together.

But it's not a simple blend of two frames, either.

Notice that the shadow is not blurred - just the spinning white board.

Quote - take no notice of forum trolls.

*that wasn't even close to trolling. lets keep some perspective here. that was just sarcasm.

Compare.

Here is without motion blur.

Look especially at the left front tire. Or, rather, where it is supposed to be.

Here the camera is perfectly locked with the truck.

It gives a slightly different feel to it. In this image, the truck is more clear as it is not the slightest bit blurred, but I feel like the others have a more convincing sense of speed.

bagginsbill,  I was able to get an acceptable wheel spin blur, but it doesn't look like the background is moving at all in my image... specifically the trees.

I used shutter close of .500 @ 30 fps over 90 frames, and that worked great for the wheel spin, but the background hardly showed any movement.

I also decided to move the background instead of the car and camera. ( i can always try the opposite )

After that I reduced the total frames to 45 and the same distance from point a to point b and that amplified the background blur way too much.... that is also the point where the render would not complete, due to lack of memory.

I think this is gonna be a trial an error session until I find the right amounts of frames and physical movement. I gotta say, this has been pretty fun so far, even if i havent figured it out completely yet.

I love the idea of slowing the camera down a bit.... that render looks the best IMO

I really appreciate your input, thanks.

"I also decided to move the background instead of the car and camera."

hmm the Rolling Road technique. invented by Derek Meddings for Thunderbirds... an excellent method to impart movement...

That was soultaker's suggestion :)

It looks perfect when I run my animation preview, lol

what ever is hanging me up, has got to be in the settings somewhere.... I'll get it eventually.

I was watching some cars on a securi-cam and the wheels aren't blurred.  they just appear to precess or rotate backwards because they're out of sync with the camera.  I reckon blur would only apply to a still frame shot at slow shutter speed, but it would blur the car and wheels.

I just ordered 16GB of DDR3 PC3-12800 RAM to max out my DELL XPS 8300.

That should help a bit, I'm not sure why I didn't do this a long time ago. It won't help me figure out a nice general range for motion blur, but it will be an advantage at render time :)

and it was a lot cheaper than a new computer, lol

Yeah, I think a little blur on the car ( as shown in bagginsbill's 3rd image ) ads a nice realistic feel to the image. I'm totally gonna give that a try. :)

(The quality may be a little rough but it was only for a quick demo and rendered in about 3 minutes using crappy lights and fairly low pixel samples. )

That's my method for vehicle pics using motion blur if it's any help.

raven.

that looks good

Your post helped a lot, I tried it the way you described, and then had to readjust my distance on the background a few times, and then I skipped the "make movie" step and used D3D's Firefly script to render this.

Does anyone know if it makes any difference in the image quality using the D3D firefly script, or would I get the same result through the make movie step?  Just curious :)