Texturing help!

[zooropa]

Ho to everyone! I was wondering....how I can fit this bump texture to my exterior wall. I dont like the tile style.
DO I have to change something of the png texture in photoshop?

The material is from this forum download section.


Texture Mapping:
U: 20
V: 20
W: 15.

THanks A LOT
Zooropa

[dalomar_cg]

Re: Texturing help!

Turn on the mapping widgets and size to please...planar would probably do the trick

[Micha_cg]

Re: Texturing help!

Your pattern is to small for the wall and so the repeating is visible. Try to get a better bump map. You could try to shot an own photo of a large wall area. At the www you will find tutorials "how to create seamless textures" ... good luck.

[zooropa]

Re: Texturing help!

Thank you both. So ho the people use this kind of images? Dont understando...which Its a normal size for a wall?

Thanks.
Zooropa

[Alexander Petrov]

Re: Texturing help!

One more thing is important when you use texture mapping. When you finished your work on model or models, select them and use - Shrink trimmed surface. Sometimes unshrinked surfaces gives incorect mapping, especially when using option - Size to model in mapping menu

[Micha_cg]

Re: Texturing help!

Thank you both. So ho the people use this kind of images? Dont understando...which Its a normal size for a wall?

Thanks.
Zooropa

I would say it's a bad quality texture, so only some beginners will use it. Size - it depends on the texture. If you like to show a fine noise only, than a small noisy map is ok. If your map show signifcant details, than a bigger area should be covered by the texture.

For a simple but good wall bump you could play with a noise material based on a noise with two octaves and a high fequecy ratio between the tow octaves. The high ferquency for the fine ripple and the low frequency part for the irregular motar thickness.

Here something to start - maybe you need to adjust the "size" option of the noise for your scene. The noise at the diffuse color isn't important and can be deleted.

http://www.simulacrum.de/download/Wall_proc.vismat

[40th]

Re: Texturing help!

Hey Micha,
Where can i learn on the noise settings like octaves and so forth ?

[Micha_cg]

Re: Texturing help!

I don't know. I know noise shaders from rederman alittle bit. So far I know the octave count let you control how many noise pattern are overlayed.

One more hint: if I want to adjust a noise for bump mapping, than I use a test material with the noise at the diffuse color. If the noise pattern is right I use the settings at the bump too.

[zooropa]

Re: Texturing help!

The thing is: I have a Wall, and I don't want a repeating tile..stye. I want my image fit the right size of the wall. So which are the steps to know the right size of my map?

Thanks a lot!

[Micha_cg]

Re: Texturing help!

Tiling can't be avoided in any case - if your map is for an area of 2mx2m, than for a 2mx6m you need a tiling. Most the goal is to avoid a visible (!) tiling. And here you need a good map. (Or you use a procedural shader like the noise).

Some tools like Imagesynth helps to get a random pattern from a photo texture.

[40th]

Re: Texturing help!

One more hint: if I want to adjust a noise for bump mapping, than I use a test material with the noise at the diffuse color. If the noise pattern is right I use the settings at the bump too.

But you'll still need to render to see the changes you've made... right ?

[Micha_cg]

Re: Texturing help!

One more hint: if I want to adjust a noise for bump mapping, than I use a test material with the noise at the diffuse color. If the noise pattern is right I use the settings at the bump too.

But you'll still need to render to see the changes you've made... right ?

Yes.

I forget to say - an other advantage of the procedural noise than perfect tiling is, that you are complete independent from mapping problems, the noise looks perfect homogenious everywhere.

[zooropa]

Re: Texturing help!

Thanks for all your answers! By the way Micha, Why your wall matrial...has differents types of settins...between difuse and bump?


thanks.
Zooropa

[Micha_cg]

Re: Texturing help!

Because I thought at a wall bump and color are different effects, the diffuse noise was for an "used" effect, but isn't realy needed.

[zooropa]

Re: Texturing help!

Thanks Micha, for your patience...I 've just realize that my question was really dumb.

Thanks ;D