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Ackward error on tire texture

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Ackward error on tire texture

Posted by Celso Jorge at August 28. 2010

AJ, Hoss,

 

As I told you - attached picture.

Looks like corrupted image. How I can remove it?

 

Thanks,

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Re: Ackward error on tire texture

Posted by AJ Weber (Admin) at August 28. 2010

That could be either a file corruption or memory corruption.  It is certainly 'line aligned' with the tire texture itself, so a local memory corruption is almost certainly the issue.  If it is on the file, a sync should fix it.  I've been syncing using the update mechanism for a while now, so you could maybe try to just do a old-style sync.  That should overwrite a file corruption.  If that does not fix your problem, the finger starts to point to your video memory.

Re: Ackward error on tire texture

Posted by David Hostetler (Admin) at August 30. 2010

That looks more like a problem on the graphics card.   Consider what has to happen to get pixels like that on the screen.  If it was corruption in the texture file itself, then it wouldn't be straight like that -- the UV-mapping would put the noise into the buffer in a pattern similar to the rest of the tire texture.  That looks more like bad blitting on the card.

But certainly just re-fetching the file is an easy thing to test.

Re: Ackward error on tire texture

Posted by C at August 30. 2010
If it was an error with the texture wouldn't it rotate with the wheel?

Re: Ackward error on tire texture

Posted by David Hostetler (Admin) at August 30. 2010

Yeah, that's why I don't think it's a texture _file_ corruption.  It has all the earmarks of an internal problem on the card.  Now... that doesn't necessarily mean that such a problem couldn't originate somehow *in* the file, but it's unlikely.

Re: Ackward error on tire texture

Posted by AJ Weber (Admin) at August 30. 2010

I think it could still be either becuase that line /is/ aligned with the texture UV as well.  So if a small block of memory of the texture in the file were corrupt, it could look like that too.  Basically, it could be either in the file, or in video memory, if the defect rotates with the tire.  If it does not rotate with the tire, then I'd lean more towards video card functionality as the defect.

Also, does the defect disappear when the tire rotates a certain amount?  There are actually 3 textures to do the blur.  If the texture is the problem, then the defect should go away when the blur kicks in.

 

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