Forza Motorsport Resource Extraction (.carbin)

[Simon]

Wow nice

Camera Control Rules

[Ernegien]

I think I got normals fixed, so if someone would be so kind as to import it into 3ds and check if the smoothing problems go away, that would be greatly appreciated . All I have to work with is blender and I don't exactly trust its results...

Download

[Simon]

I Imported the car in Blender 2.5 Alpha 2, Exported as dae (collada) and the errors are still there. (Maya)

But the errors are in Blender too

[Ernegien]

Well, I'm confident that normals are extracting correctly now and I also fixed a "feature" where I was drawing all of the faces backwards. The remaining issues either have to be caused by obj limitations (or my limited knowledge of their format), imperfect vertex precision, poor import support in blender, or something else well beyond my general understanding of these things

[Simon]

Can this help you, maybe?

It's from the rear, hard edge of the BMW

[Ernegien]

Possibly, hard edges seem to be where most of the problems occur...

[Veegie]

Alright, Ernegien and I were discussing the possible source of this problem.

As I stated before, the models currently are rendering perfectly in the viewport, but come rendering time with a reflective material the smoothing groups seemed to fall apart.

Below is the .obj import options currently being used for 3ds Max.


It seems that if you check, Normals: "from file" it imports and displays perfectly in the viewport, but renders with the issue.
If you import the normals "From smoothing group", it displays the problem in the viewport as well as in the renderer.
It seems that somewhere along the line the vertex normals are being converted (incorrectly) to a smoothing group.

The possible course of action to solve this is to allow for .3ds format exporting where smoothing groups are much more friendly.
Anyone else with any experience working with model formats, please leave your 2¢.

[TomWin]

I dont understand why any program (3dsmax, lightwave, deep exploration, 3d converter) import obj wrong
for example in max2010 imported one-77 obj looks like that :S :


Only blender import mesh correct, but then there is no UV map, nor parts

well as you can see in flat shade view, mesh isnt imported correct, because bumps everywhere, that's the reason causing ugly rendering


one program shows that for all vertex while importing


Alright, I compared few .obj files I have or made, in various programs to the one from forza and I noted differences that may cause problems. look at these lines, on the right side is model from forza

[toolieo]

Not sure if helpful as I have really low skills in 3ds max etc. Anyways I use Deep Exploration to get obj to 3ds. Deep exploration can use its own smoothing while using it lately I have noticed this: I can select the smoothness type while using it but that's about it.

Original Smoothing:


Deep Exploration Smoothing:


The model itself while in deep exploration has no flaws from my point of view. Hope this is helpful in anyway.

[Simon]

It means you use Forza Studio and Export OBJ and Import this in Deep Exploration and all Errors are fixed?

Can you Upload more Pictures from different Angels pls?

[toolieo]

It means you use Forza Studio and Export OBJ and Import this in Deep Exploration and all Errors are fixed?

Can you Upload more Pictures from different Angels pls?

Yep, I just open the obj in Deep Exploration. The errors from what I can tell are fixed within its own smoothing, I am not sure if I can get other formats to export with the smoothing applied. I am trying to think what I can do.
---------

Images - *Deep Exploration Smoothing applied*



BMW M3 GTR -

[Ernegien]

Yeah, in Deep Exploration it seems like blender's results can be reproduced with smoothing angles higher than 35 degrees, otherwise things seem to render a little better, but I still notice some problems. This could also be due to the fact of me using an older version (2.1) of the software.

[Simon]

Can you build in a function which allows hiding/showing Normals and the Wireframe on the Models?

And maybe if it's not to much choose the color of the car?

[Ernegien]

Yeah there will be a toolbar at the right of the viewport eventually with a bunch of rendering options. I still need to talk to ajmiles about the xds image format as well...

[ALYX]

I import models to Deep Exploration too but had nothing. Only blender import models properly. Maybe problem is in OBJ export algorithm ?