Correcting the animated texture BUMPS errors ???

[daniel99]

Hello forum.
 I face a big dilemma.
 I'm working on some animation for an advertisement that includes animation of organic elements. The problem is when using strong bumpmaps, while the animation, the bumps lies in a very strange way. swollen areas are strangely moving, sometimes jumping from one frame to another. Is there any procedure to correct this bug?
 Who helps me with a solution gets a beer.
 Thanks a lot.

  Rock on...

[Arik_the_Red]

Any way to show what you mean?

[daniel99]

Thanks for answering. This is the problem:
http://www.youtube.com/watch?v=21DuWKlFtMQ
As you can see, the bumpmaps on the cheeks are going crazy. Sometimes we need to use high bumpmaps, and this problem appears.
Is there a way ?

PS: That's a character I made back in 2006.

BTW: 2nd question: Let's suppose we have a project with 5 objects, all textured with the same material. The material's name is the same on every object. Is there a chance to chance the material (color, ambient, specular values etc ) if the material has the same name in every object, without manualy chance it for the each object.

[Mills]

Hi Daniel
Can't (immediately) help with the first problem, but for the second it sounds like you want to be using 'File' materials, rather than 'Object' ones - there are two buttons at the very top of the material selector. It's on 'Object' by default; press 'File', and any materials you create here will be available to every object within your .an8 file. Any changes to this material, whichever object you are in when making those changes, will show in all instances of that material.
You need to use distinct names, I think if you have a material with the same name as a 'File' material in within a specific object, the object one is used in priority.
Hope I'm not misunderstanding you!

[CoriDavis]

Oooh! thanks mills! I've been wondering what those were for! lol

[daniel99]

Thanks Mills. Never thought the file materials works like that.

Maybe someone knows a way to correct the first issue too.

Thanks.

[Mills]

I've never had a problem with bump maps, they've always worked exactly as intended for me. I've done a few tests with high poly models and extreme distortions, but haven't been able to reproduce your results. It does make me wonder about the complexity of your model, though, and obviously I can't tell that just from the output video you've linked.
The only time I've encountered seemingly inexplicable frame-to-frame 'skipping' in a render is when I've had two faces in fairly close proximity, even when they're static - is your head a single mesh (and I mean the actual head model, not the hat, goggles or eyes, etc), or are you using several (two or more) copies of the same mesh at slightly different sizes, each with varying textures (perhaps to improve the realism of the model)? If that's in any way the case, there are both several causes and several solutions.

[daniel99]

No, Mills. I used only one mesh, but the bumpmaps set at 99%, for high bumps, and whhen animate , it gets this result.
Usualy, I set the bumpmap at a lower value, but now I need a high value.
Can this problem be solved?

[rellik420]

dont know if this will work or not but you could try reapplying the material to your model.

[daniel99]

I made a retexturing test, but nothing changes. It could be a bug in anim8or and only when Steve updates the program that could be fixed, that's what I think. When you have deep bumps and animate this problem appears.   
But I still hope someone have a solution.