Modeling a city, texturing and Gi Joe problems

[Giandani]

ok, for the texturing there's a way very simple...

just assume you've got a texture file for each building (and so a different material for each building, just one for texture), that's the way to do it...
First select the faces of the first building and in the hypershade assign the right material (the one with the right texture) to those faces with the "Assign material to selection".
Then you've got to map the faces... it's quite simple. Select the first group of faces (those of the north face of the building for example), choose a camera normal to those faces and give them a UV texture based on camera (Edit Poligons-->Texture-->Create UVs Based on Camera).
Now go in the UV Texture Editor (under the Window menu), there you can move the UV to the wanted position and map exactly the selected faces with the right part of the texture.
Simple isn't it??
Now repeat for each face of each building...
There is a fastest way... use the "Automatic mapping" instead of the "Create UVs Based on Camera" but not allways results in a good work.

Thats' all... Bye!
(and sorry for my english... ::p )

[wazzup]

Alora, :thumbsup:

Tnx a LOT I`m gonne try to do that right away.

Really cool that there is a feature "assign to selected" I didn`t figure that out :rolleyes:

I`ll post the result ofcourse!

[wazzup]

Btw,

How can I stop selecting the backfaces of my building?

If I shift-drag around a few faces, sometimes faces on the back -which I can not see- also get selected.

[wedge]

you can also drag materials onto the object using MMB

[wazzup]

oops

[Houkah]

you're getting shadows but they're diffused because GI Joe is rendering all the lights at the same intensity from different angles. An easy way to get the shadows you want would be to add another light that's not part of the GI_Joe rig. Or you could have a seperate lighting setup for the shadows and slap a background shader on the entire city. If you render this out in a format that saves the alpha channel (i recommend targa) you can composite it with the GI_joe image. After FX does the compositing automatically if u import the 2 images (GI_joe image and shadow image) and place them right on top of eachother. This will also give you control of your shadows when it comes time to composite. (change the opacity to control how dark it is, add a solid color and connect it to the alpha to change the color of the shadow, etc, etc)

[wazzup]

Hi houkah,

Tnx for the reply. If I understand it correct I should render the scene in a shadow pass, and one with the GI_Joe lighting?

I understand that with seperate lights the scene gets it`s shadows, I will try that first. Cos I don`t really have the time to find out how to render in passes yet -I once done a tut, but I can`t really remember how it was done :wip:

If I render my city with a HDRI image -I`ve got loads- Will that give a nice effect, or is it just for getting cool reflections?

If HDRI is also a good option; In GI_Joe I can`t select HDRI, How do I get GI_Joe to render with HDRI?

[Houkah]

with HDRI your shadows will depend on the lighting in the image. If there's a strong light source then you should get nice shadows. If you have even diffuse light it will probably look similar to what GI_Joe is giving you. According to pixho's website GI_Joe 2.1 has HDRI built into it.

http://www.3dluvr.com/pixho/toolbox/mel/GI_Joe/GI_Joe_doc.html#docHDR2.1

Good luck. :thumbsup:

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.