how to create 'clean cut' material?

[sparksue]

Hi there,

 

As mention above, I would like to check whether is there anyway that we can create the material correctly?

I notice that whenever I try to create a bigger material from a scanned picture. It will eventually shown as 'Tile' material but I want a big randomly material that I can use for rendering.

 

Anyway able to tell me what I can do for this? Here's the example:

 

1. Small Picture,

2. When I combine to made it bigger, it's will somehow become tile.

 

Anyway to get it done without having any tile effect when I want to made it longer / bigger?

[Corey Beaulieu]

Start with the largest image that you can and then go nuts in PS. Use the clone stamp tool to paint over seams and when its looking good go to Filters>Other>Offset and offset the image by half in both directions. From here you continue painting out seams.

 

Lastly, It is also a good practice to paint out the uniform pieces. For your image, the black dot will stand out as uniform so I would paint it out and move it around.

[Eric]

I do the same thing Corey does. The material you attached is very small in reality - when you edit the image in Photoshop, work with a much larger graphic - like 10 times the size of that or more. That way if you do get a repeating pattern, it won't be as noticeable.

[sparksue]

Hi Guys,

 

thanks for the advice but I try to find the picture but couldn't get it.

No worries, I will look into the method that you guys suggest. Thanks!

[MrCAD]

PS is the way to do the textures seamless... apart from that we've developed an in house app. to do the same..Download the application attached and give it a try.

 

good luck

 

Meher

seamless.zip

[Peter M. Gruhn]

Luxology used to have a "image synth" which looked pretty good. Sigh, used to.

 

In PShop, the magi bandaid tool can be very helpful doing this. WHen you are bandaiding/cloning, do not set your feather/hardness too soft, or the whole thing will turn to mush. You want the edges to vanish but you don't want to blur the whole thing out. The new content aware tools can be helpful.

 

Copy and _rotate_ your sample all over the place. Copy and repaint some of the stand out details so it isn't so obvious that you have only 2 different big black chips.

 

Sometimes the thing to do is just paint/build something that looks close by hand. Use noise or chips or marble or fractal clouds or all the above... It will depend on viewing distance and correctness requirements.

 

Use a noise mask to blend between two different offsets/rotations in max. If the material can stand it (this one probably can't stand much) have the base maps at different scales.

[karankundra]

The type of hole saw you need is chosen entirely on the type of material you want to cut.cutting ferrous and non-ferrous metals thicker than about 1/8" is difficult because once the teeth become completely buried in the work there is no place for the chips to go.