Ancient Bath House

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  12 December 2006
Wow I really like this painting. Makes me think of Atlantis or Lemuria perhaps.
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Its ok I din like it either
 
  12 December 2006
arnocob: cheers
wasker: 3d max all the way
AnOldFriend: thanks.

Might not be able to do much for a few days... but i'll be back .
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Bath House
 
  02 February 2007
ooh long time no post but i'm back.
I'm knocking together a quick making of video...

http://www.digital-animosity.com/footage/all4.rar
it's in high def resolution and has sound, so it's gonna be for broadband only people I think (just about 47 megs)

The video is still work in progress but it will give you a gist.
The codec is Divx and the file is winrar compressed (just download winzip or winrar to unpack it if you don't have it)

I'll be back with updates.... not sure when though as I have lots of work to be getting on with.
Another thing to note: the video does not yet represent the latest progress, which I will post soon.
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Bath House

Last edited by JMcWilliams : 02 February 2007 at 02:11 AM.
 
  02 February 2007
really great great work

All the many hours you put into this pay off in the end
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Sketchbook


 
  02 February 2007
The video shows a lot of things.

I love the water fall and the reflection in the water, the over all mood is brillant.
 
  02 February 2007
Thank you both, i'll update when I have the energy (staggers off to laze on the sofa for a while)
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Bath House
 
  02 February 2007
MAn...O_o amazing....this is the best painting what i ever see..
 
  02 February 2007
so i just found your thread. and i have to say this is amazing! i was watching you making of video and it went from great, great, great and the the last one was amzaing! cant wait to see this finished.

So what is your workflow. I have to say im a little confused about the projecton mapping on the 3d objects. I guess i have just never seen it done. can u go a little more into detail?

thanks and keep it up!
 
  02 February 2007
Sanislov: thanks very much

malibubob: Thank you, it's half four in the morning here and I'm gonna be up for work soon But I'll be back and then post an explaination on how projection mapping works (or at least how I bodge it ).
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Bath House
 
  02 February 2007
Ok, Camera mapping (projection mapping)

I cannot upload to my ftp from work, so Iíll have explain this without images for now.

There are actually a few different ways of approaching it, you could start with geometry and then paint afterwards, or you could do it the way I did it and start with a 2d painting first. A lot of matte paintings for movies use a little projection mapping these days, though I didn't want to use it for the same ends, it's more about getting a 'moving painting' look for me.

The basic premise of the technique is sort of comparable to a real life movie projector in the cinema. Imagine that the image being projected was the bathhouse and then you get a bunch of plain cardboard boxes and built them up into a model that matches the shape and perspective of the bathhouse image from the projectorsí point of view.

I put the painting into the viewport background in max and after getting a reference ground plane set up to help match the camera view angle with the one in the painting, I started building simple geometry to match the scene.

I also had to cut out elements such as the big archways and pillars. These needed to be projected separately and I also needed to paint what would be behind them in a separate image/projection. Obviously in the original painting the areas behind the pillars or any foreground objects did not exist, so I needed to fill these areas in. Without the separate projections, moving the view to take a render from even a slightly different angle than the original painting would result in the geometry behind the pillars and archways displaying a double image. In the real life projector example it would simply cast a shadow on anything behind the boxes, but since we can selectively choose which objects to project onto, we donít have those restrictions.

The arch ways and pillars also have projected opacity maps that help define the edges, which hides the fact that the geometry they are projected onto is very low polygon.

I also started expanding the whole scene so ended up adding a few more cameraís from wider angles in order to project the cavern walls and new foreground elements. You can use multiple images to project from one camera if required, or you can use lots of cameras projecting from different angles with different images. I made all the projections 100% self illuminated and so there is currently no '3d' lighting', all of the lighting and shadows are painted into the textures. Although if I were going for a less painterly look there would be no reason why you could not have bump maps, specular or any other type of shader techniques in there.

There are a lot of possibilities with it; it all comes down to thinking creatively about how to achieve what you want. Because it was my first time with camera mapping and I was learning it as I went, I didnít do a very clean job of it mind you (ie, inefficient texture space usage).

Hmmm, did that make any sense to anyone?



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Bath House

Last edited by JMcWilliams : 02 February 2007 at 04:00 PM.
 
  02 February 2007
it did make sense thanks for going into that for me. i think it came out great and cant wait to see it done!


thanks again for the time you put into the explanation!
 
  02 February 2007
You are welcome,
final (for now) video is now uploaded...
http://www.digital-animosity.com/fo...athhouse_jm.avi
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Bath House
 
  02 February 2007
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