how to make this texture follow a circular path?

[emartin8907]

Hi,

I am trying to emulate this brake texture, notice the cracks
http://www.germancarforum.com/attach...amg-jpg.65306/

Here is the cracked texture I am using-
https://s-media-cache-ak0.pinimg.com...b862d52152.jpg

How do I get it to follow a circular path to look like the brakes?

At first I tried photoshop distort filters but nothing worked for this, closest thing was arc but it only does half a circle and it stretches the hell out of the texture.

I have tried Illustrator, using envelope distort but it keeps telling me I must have two objects selected I am not sure why my image is embedded and I tried creating a circle shape and using pen tool to create a circle neither worked.

I've read Gimp might work I downloaded it and can't seem to figure out how to have it follow a complete circle without stretching...

Any help appreciated!

[Short_Fuse]

If i'm reading your post correct, you've got two options.

Option 01: Remodel the object using a Sweep modifier with the box profile along a circular spline. Make sure Generate Mapping Coords is enabled.



Option 02: Use the Spline Mapping option in the Unwrap UVW modifier. This allows you to unwrap an object along a selected spline, in this case a circle spline.



Hope that helps.

[werticus]

There is a 3rd option, use loft. Which is nearly the same as sweep :P

Technically it is going to have stretching however. Not sure why you would need to map that texture in such a way anyway?

[Laserschwert]

Option 4: Use a box with many subdivisions and bend it 360 degrees. (To close it, you will of course have to delete the end faces and weld those open edges).

[dans]

What about the outer surface of a simple cylinder? Create a cylinder, remove top and bottom - scale the upper rim so you get a cone shape then move the upper rim to the bottom so you get a flat shape. Adjust tiling of the texture in the Bitmap texture map options as desired.

In Photoshop you can use the polar coordinates filter (Filter > Distort > Polar coordinates), but it is quite tricky to control and get the desired tiling right. (You basically need to position your texture at the bottom of a square image before applying the filter. The upper part will turn in to the center hole.) I used this technique once to draw an iris texture.

Daniel

[Oleg_Budeanu]

Just unwrap existing texture to be a rectangle shape and texture it in PS. Should be quite easy.