Unormalized vertex color. How to fix it?

[aerlenkoenig]

this only works for parts that are colored solid, the moment you have AO on it you will basically destroy the vertex ao bake with it, in this case you need to use level or hue/saturation to change it and check with "Get Statistics" in the right SCS Tools panel that the max/average is at .5 or below

I have one question regarding this topic. I want to change the Scania logo of the Streamline to adapt it to truckpaint instead of chrome. When I export the model, I get following errors:

Code: Select all

WARNING SUMMARY:
================
> Object 'piece_0' from SCS Root 'front_grid_01_cab' has unormalized vertex color, some vertices use: 0.54118. instead of max 0.5
> Object 'piece_1' from SCS Root 'front_grid_01_cab' has unormalized vertex color, some vertices use: 0.70196. instead of max 0.5

When I adapt the vertex color to 0.5 via the Vertex Paint mode, I get the following ingame results:

[ external image ]

The modded part (right side of the picture) has a slightly brighter grid than the original part (left side of the picture). Is this due to the AO? Is there a way I get exactly the same color of the grid like the original? Or is it just trial and error?

[MatzeH]

@aerlenkoenig Two things you could do:

1) Make the grid a seperate object, clone its material and trim down the brightness of the diffuse color...
2) ... and/or bake an AO texture for it, the oldschool but more precise way.

At the current state i would always choose an AO texture over vcolor because the quality of the AO using the vcolor depents to much on the quality/resolution of the mesh. With AO as texture you get your own UV set which you can edit independent from the UV set of the diffuse texture to get more resolution/quality of the bake.

[aerlenkoenig]

So AO baking it is. I am relatively new to Blender, thus I have no idea how to do AO baking. But I will have a look at it, no excuses. It is a lot of fun to learn new things in Blender and the results are very rewarding. But boy, does it take time.

Thank you very much, @MatzeH.

[all_zer]

In the top bar menu you will find a color menu that is set to 1/white by default, click on the field and change it to 0.5 0.5 0.5 in RGB color space.

You mean this? [ external image ]

Can you please explaine more detailed... where and what to set?
Because, i still have this error [ external image ]

[Digital X]

I do mine a little differently.

Click the white bar, click "HSV" and make the "V" 0.5. Every other value should be 0.

I don't know if it differs per model or material if you need RGB or HSV but this is just the way I do it.

[ external image ]

If you still get that vertex error try the following:

1. With your object selected, click "Object Data Properties" on the right hand side bar (green triangle) Under vertex colours you should have Col and Col_alpha.

2. Remove Col_alpha and export, if the error mentions Col_alpha is missing type it back in and export.

3. If that doesn't work, remove both then add in just Col, export. Then add in Col_alpha and export again.

[xXCARL1992Xx]

if you do this you loos al vertex AO baking on models that use it, you have to level the brightens out and make it darker until the average is 0.5 or below

[all_zer]

I did it here. in material tab.
[ external image ]

Maybe works... but one more warning still remains [ external image ]

But one more warning, still exist...
even removing and adding col & coll_alpha didn't helps
[ external image ]

[Digital X]

Not sure to suggest, because here is the same way viewtopic.php?t=303189

[aerlenkoenig]

A question regarding unormalized vertex color. In the error message it is written that the value must not exceed 0.5. When I import SCS vanilla parts and export them again without editing, I also get this error message from time to time, because some objects have vertex color values greater than 0.5. Why do these objects have values greater than 0.5, although you are "not allowed" to export them greater than 0.5? Is there a disadvantage when I export objects that have a value higher than 0.5? Because ingame I have not noticed any difference, only that objects with higher values appear correspondingly brighter or less shady.

[Dotec]

it isn't an error message. It's just a warning and doesn't affect the export process