Light motion blur?

[neilyb]

Oh and...it is a particle emitter going quite fast so there should be motion blur if it is available....I have set a motion blur from 1-1000 but so far no luck. I also have Motion Blur in the effects panel......incase you were wondering....(I often miss the obvious!)

[AdamT]

Are you using object motion blur or scene motion blur? Object motion blur doesn't work with particle systems.

[bry]

Hi,

Object Motion Blur DOES work with Particle Systems, though I'm not sure if it works with Lights.

I've been using OMB on particles when creating smoke and other things. I just assign an OMB tag to the object inside the emitter.


bry

[neilyb]

Er...Object motion blur.....but it works with objects in the particle emmitter!?

[neilyb]

Looks like I'll use PShop.....

[AdamT]

Hm, p. 429 of the reference manual says that OMB doesn't work with particle systems. But if you say it works I'm sure you're right. Never tried it myself.

[bry]

I had this discussion with Rui last week, too.
We think it was implemented in v7.3, but I'm not sure.
I'm sure it works, though!

bry

[neilyb]

OKAY, here is a test done with a particle emitter and a cube: OBJECT MOTION BLUR....

[neilyb]

and with SCENE MOTION BLUR.....

[AdamT]

So it would seem that object motion blur does *something*, but not really what you'd want. The scene motion blur looks good, though.

[neilyb]

Yeh, but when rendering 700-800 visible lights with falloff scene motion blur will push the render time upto...lets say....six weeks for a 10 second anim?

Okay...now I know. I certainly am not sure what object motion blur is doing or why?

Thanks guys.

[kiwi]

Instead of visible lights maybe with some tweaking you could use a luminous material on say spheres and just make truckloads of instances?......dont know if it will work though :hmm:


Also try a radial gradient in the luminosity channel and one in the alpha and it should give a similar effect to a visible light I think.



Stu.

[neilyb]

Have tried that, but it's just not quite the same....it's for the front of my portfolio so has to look just right.....thanks all the same....but Cinema's lights rock! I wish I could put a coloriser gel on there.....but there ain't enough RAM in this country!

[kiwi]

Ah ok :rolleyes:


Actually if you use PS the lighting effects omnis are not to bad for a realistic look either with a bit of work.



Stu.

[LucentDreams]

OMB worked on objects within an emitter back in XL 5 even, I have a tornado that was started in XL 5.3 just for fun, and then brought back to life in XL 6 for a Wizard of Oz project. Made a really nice tornado but as actuual motion blur its useless. It also is good for sort of painterly effects.

[neilyb]

Yeh effects wise OMB is OK, if not a bit random. SMB is great but not when using 700 visible lights and rendering at 2000x1500 at 300 DPI, even with 5 times......lol :-(

[sad]

hi!

sorry, i've been away for several days.
take a look at this expression:
starblur made by mediabunker.com (http://plugin.medienbunker.com/starblur/)

hope that helps.

[MJV]

Object motion blur is the biggest joke non feature in Cinema there is. Forget about it. Next, there is no reason to use visible lights for so small a particle because you can get identical results from glowing textures mapped onto spheres, which render way faster, so much faster that using scene blur shouldn't be that big a problem. As an aside, visible lights used in particles rendered very fast in XL6, but where broken in XL7. They're now extremely slow.

[LucentDreams]

Originally posted by MJV
Object motion blur is the biggest joke non feature

Thats only if you think inside the box and use it for actual motion blur, creates really cool effects for other things.

[LucentDreams]

wow sudden Deha Vu, didn't you and I have this discussion in PF before ;)

[MJV]

Originally posted by Kaiskai


Thats only if you think inside the box and use it for actual motion blur, creates really cool effects for other things.

Uhhuh. Show me one. (That's a challenge.) :deal:

[LucentDreams]

I'll have to find the CD with the wizard of oz stuff on it, so give me a day, but I'll have the pic up.

[LucentDreams]

http://www.cgi.third-era.com/~kaiskai/tornado.jpg
http://www.cgi.third-era.com/~kaiskai/tornado2.jpg

These use both OMB and SMB together, really nice look I think. especially considering what the tornado is made of.

The first is the mage in the original poster, the second is the render I did with the file just now, consider it a treat as I accidently rendered with a beta, not that anything would show in this example.

[neilyb]

Kai, you truly are a genius......bit of a wizard I reckon!

[kiwi]

That looks nice :thumbsup:


Stu.

[LucentDreams]

here is the final poster, wish I could take some credit, I helped with the tornado for the play, but the composition final tornado and colours were done byt Patrick Goski (known around cgtalk as CHI) and typography by Vicky Wiercinski. Two students the year i was teaching. :)

Not bad for highschool students and a teacher only one year out of highschool, for a highschool production eh? (in case its different in the other countries highschool is secondary school)

http://www.cgi.third-era.com/~kaiskai/PVwiz.jpg

looking at it more closely, I think the Object motion blur was only used n the animated version, it seems to crisp in the poster, compared to my render.

[kiwi]

It has an almost mosaic filtered effect to it :)



Stu.

[LucentDreams]

The idea started off with and AT&T commercial around at the time with a little blue tornado made oup of three or four torus' that i like. that was all I recreated. Then we started the wizard of oz, and XL 6 was out, I opened it up and said is the technoey enough for you (the director had some cool concepts of using the different areas as different time periods, and the tornado had to be sorta technic for her) she said she need a bit more so Chi simply add an explosion deformer to it, and as it spins it exlode out and then sorta back nt not too far either way, just for a nice sweling effect as the torus spn atound. add the two blurs some interesting lightng and highly reflecteve material and you have a cool little tornado effect. Colours were all his as well, showing the same idea as the colours in the story, each place had its own distinct colour

[MJV]

Kai, it's a nice poster, but I see nothing there to redeem object motion blur. In fact I only see a little blur in the lower left corner. The rest has very distinct steps that look more like scene motion blur with a low setting.

[LucentDreams]

the best example would be the new render I did, as I am thinking Pat didn't use the OMB on the poster image now, but it was in the animation (which I don't have but I am rendering out a quick animation of it in one place, hold on it will be done in a while.

[LucentDreams]

Sorry for the wait, had to render it without the SMB to give a beeter idea, as the SMB tends to take over in teh top left too much, the overall mix is better but here is the OMB only version (not used in the production of course) tsill has a similar effect, though SMB still had a little more technic like look to it.

Tornado (http://www.cgi.third-era.com/~kaiskai/tor2.mov)

should add that is it 7 megs sorenson 3 quictime., I can post a smaller one if needed, but this is nice clean and crisp.

[AdamT]

Looks very cool, though it stutters quite a bit on my slowass office machine.

[LucentDreams]

I'll note that and make it smaller tonight for everyone else. kind of like the framing of the composition using the poster dimensions, its not too often you see animation longer vertically.

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