http://www.youtube.com/watch?v=nlX5y_yVuaI
____________________________________________________________________
FIrst off you need to download the following.
(if needed) Java - http://java.com/en/download/manual.jsp
NBA2KX Mod Tool (2K12 Supported)
Blender 2.49b - http://download.blender.org/release/Blender2.49b/ (you want "blender-2.49b-windows.exe")
Python 2.6.2 - http://www.python.org/download/releases/2.6.2/
As you may have noticed, those are the old versions of Python and Blender. I was unable to get the import/export scripts working in the latest version of Blender and that Python version is what worked for me in 2K10. If anyone gets the newer versions working, please let me know.
____________________________________________________________________
Install Python, and once that is finished install Blender. When Blender Is Installing it will ask you where you want to have stuff stored, either in appdata, the program directory, or some other place. For simplicity and accessibility, I chose the program directory (i.e program files). This choice will affect where you put the mod tool scripts.
After Blender is installed, extract the Mod Tool to a directory of your choosing. In that rar file there are two .py files called ble_n2km_export and ble_n2km_import. Copy those two .py files and place them in the Scripts folder for Blender. That location depends on where you installed the data during the Blender installation.
The Blender's Scripts Folder, (.blender/scripts) will be in either,
C:\Program Files\Blender Foundation\Blender\.blender\scripts
or it will be in,
for XP:
C:\Documents and Settings\Brendon\Application Data\\Blender Foundation\Blender\.blender\scripts
For Vista/Win7:
C:\Users\Brendon\AppData\Roaming\Blender Foundation\Blender\.blender\scripts
Once the py files are in the proper folder we can actually start playing with 3D Models.
The rest of this tutorial is copy and pasted from 2K10. The overall procedure is the same, but 2K12 courts don't look the same and the Mod Tool looks a bit different.
I will be using a court as an example (f005.iff)
With the 3D tool open find the model you want to open

then click Export Res
save the n2km file somewhere and start up Blender

you will see this block and a couple other of objects, we dont want those in there so press "A" to select all and press the "Delete" key to delete these objects.

Click to confirm the delete.
Goto File Menu, Import, then Import N2KM.

Find your exported "Res" file and import it

your screen should look something like this

notice the new thing on the left and right of the screen. The middle section is your viewport, you can zoom in and out with the scroll wheel, the middle button will orbit the view, and panning is done with Shift + Middle Click.

You will notice that you cannot see the entire court, we need to edit the view properties to view it all.

So edit the Clip End value to as high as it will go and you will see the maximum amount the program will allow you to see

Now, similarly to Ebodit or the original EBO Editor you can select certain parts to edit. This can be done by expanding the NBA2KM menu on the left, or by simply right clicking the part you want to edit in the viewport.
I'm going to remove the charge circle lines.

Now that we have them selected notice that we are in object mode...we can move stuff around in object mode but when we export, it will not save those changes. We need to get into Edit mode. So either click that object mode drop down and switch to edit mode or press TAB.

Now that we are in edit mode, notice that the 3D faces are pink and the vertices are yellow, that means everything is selected right now. Since we dont want to edit the 3pt line and other things selected in this "part" we want to press "A" to deselect all. Once everything is deselected press "B" to select vertices. Select the Charge half circle with the box you create with your left button.

Now, to move/rotate/scale objects we can do different gestures by clicking with the left mouse button and drawing something.
[list=][*]We can draw a straight line to initiate the move command.
[*]We can draw a half circle to initiate the rotate command.
[*]And we can draw a V to initiate the scale command.[/list]
For more gestures
http://wiki.blender.org/index.php/Doc:M ... n/Gestures
So initiate the move command by drawing a straight line with the left mouse button and letting go of the button.

Now that we are in the move command you can see that you are moving the selected vertices around. Moving them around like this is very imprecise and not ideal for most work. To help with keeping things organized you can lock the axis you are moving on and specifically tell the program how far you want to move the part.
To lock the axis, start moving in the direction you want to move and click the middle button. If you got the wrong Axis try orbiting a bit and middle click again. To move the vertices a specific distance just type in some numbers. Selecting specific axis' and dimensions work for scale and rotate commands as well.
If you mess up, you can press backspace to delete your numbers and you can retype them. Remember that you may have to input a negative value to move in the opposite direction.

When you are finished editing your lines, press TAB to go back into Object Mode. Either right click to select then edit other parts or if you are finished goto File, Export, Export N2KM file. Save it and then go back to the 3D tool.
In the 3D tool, select your model again and on the top click Import Res. Select your N2KM file and then look at it in game. And you're done.
Those are the basics. For those that was TL;DR, tough, if you want to learn how to use this program to do 3D editing in 2K12 you need to at least read that.
Keyboard Shortcuts I know of:
- Select All: A
Select Box: B
Select Part for Editing: Right Click Part
Toggle Edit mode: TAB
Move Command: Draw Straight Line with left mouse button
Rotate Command: Draw Semi Circle with left mouse button
Scale Command: Draw V with left mouse button
REMEMBER. Never Delete or Add objects, we have to maintain file sizes.
ALSO. Know that stadiums and blacktop courts may take a while to load in blender. Possibly 10-15 minutes. Blender did not crash, it is just taking it's dear sweet time.
IF YOU ARE EDITING ARENAS - the first thing you should do when the parts load into blender is scale everything down by 0.01. Make sure you selected all the parts and that you are NOT in edit mode. It will help with the view properties issues.