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Postby raymanuva » Tue May 22, 2007 10:43 pm

Cool. So how do you do that? Is there some add on that can trace video?


NO, its fully artificial... i've tried to show that by running wireframe sequence.
The road and surroundings is some picture from Google images when i was looking for "road junction" keyword...could have been anything. :D
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Postby Sotos » Tue May 22, 2007 10:50 pm

Well originally its 80 Second video, but yes it takes time to render and a great deal of Electricity used. ~13-15Kw per hour.


So are you saying that with a single computer it will take a month to render a scene? :shock: Maybe you can make the scenes slightly simpler or use faster rendering engines to be able to have a scene like that render overnight on a single computer without significant loss in quality? Obviously the more power the better but I was hopping to get decent results from my 3GHz dual core if I let it to render for 8-10 hours. I hope I was not totally wrong about this :(
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Postby Sotos » Tue May 22, 2007 10:54 pm

raymanuva wrote:
Cool. So how do you do that? Is there some add on that can trace video?


NO, its fully artificial... i've tried to show that by running wireframe sequence.
The road and surroundings is some picture from Google images when i was looking for "road junction" keyword...could have been anything. :D


So how do you do it? You import some snapshots in the movie and use them as guidelines?
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Postby raymanuva » Tue May 22, 2007 10:58 pm

I am using the fastest GI rendering engine and on 64bit with 2gig ram and Dual Core CPU... that scene had 80.000.000 polygons... this is the best Speed/quality ratio for such scene and i was pleased with the result :D

8-10 hours, you wont be able to render an empty interior with GI (Global Illumination)... i'd bet for 200 frames a day, about 8 seconds of footage...that is for complitely empty interior.
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Postby raymanuva » Tue May 22, 2007 11:05 pm

So how do you do it? You import some snapshots in the movie and use them as guidelines?


No, Max (aswel as other packages) has built in Physical Simulation System. You can collide objects, explode stuff, roll, bounce, rip, etc... as shown those 2 cars were done with similar Physical engine.. allltho roughly since you can see is not perfected at all.

So i collided them on a simple plane surface... made that surface matt.. (transparent with shadows).
Found an image, created camera to match the view.
Added lighting to match that image.
Rendered transparent frame sequence.
Improved image in photoshop by cutting out foregroudn obejcts in order to bring them to front.
Added footage in Premiere on top of static image layer and below the foreground object layer.
Few color adjustments, simple sound effects... done in 2 hours.
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Postby Sotos » Tue May 22, 2007 11:18 pm

So you mean I will need over 2 minutes to render a single frame? I knew rendering was a slow process but I was hopping that with a 3GHZ CPU and 2GB RAM I would be able to do better than that :( Does the video card play a role in the rendering time?
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Postby raymanuva » Tue May 22, 2007 11:24 pm

Video card? no...
It plays role in displaying your viewport... which is the most important part of the development. You need to constantly rotate your model, switching views dozens of times a minute... it can be frustrating when every action takes several seconds on redrawing your viewport.
Since i can already guess an averagge rendering result i do rendering tests right before the project end.
But even the HiEnd Gaming Card such as 8800 will not do a lot better than 6 series GeForce.
MAX can do better with QuadroFX cards and MAxtreme driver. The entry level card (in UK) is 350quid.
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Postby Sotos » Tue May 22, 2007 11:36 pm

I have a GeForce 7600. I hope it will be ok. So how much do you charge for an architectural visualization like the one you posted here?
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Postby raymanuva » Tue May 22, 2007 11:43 pm

now thats a sencitive subject... :D
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Postby jambo » Wed May 23, 2007 11:19 am

I am looking for someone to do some 3D images of my building project.
I need 2 views. do you want to give me a price ?
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