Re: [Gimp-user] creating a texture
Hi, for...@gimpusers.com (2009-11-25 at 1505.33 +0100): for start noise was creating noise with different colors Yes, that is right, because desaturate gives you the white to black version. You have to follow all the steps, even if at first it looks bad. ;] I made a quick visual tutorial so you can see how things change: http://www.infernal-iceberg.com/gimp/tmp/camera-texture-tutorial.png on curves , changing the line _/ wont effect the histogram on the background The histogram stays as is while you move the dots. I just used it as reference to place the curve. If you use the x and y info that appears when you drag the controls of the curve, you get good references too. But the best is to check what the image shows, the values I gave are only examples, it depends with the result you want. any way i can share my result on this page ? For PNGs or JPGs, you can use one of those image hosting sites (imageshack, tinypic, etc). If you used the mail list method instead of gimpusers gateway, I think you can even send small attachments. GSR ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] creating a texture
hello there i am a blender user i i wanted to create a texture for bumomap/normal map in gimp i tryed the noise filter but this is not what i need i am modeling a camera see camera real image here http://www.kenrockwell.com/nikon/d40/images/d40-18-55mm-top-big.jpg u can see that the camera material have little bumps with different shapes in each little bump how can i generate a texture like this in gimp black and white will be also greate I would try Convert image to grayscale Copy out a small section and save as a .pat file -- Owen ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] creating a texture
Hi, for...@gimpusers.com (2009-11-24 at 2113.32 +0100): hello there i am a blender user i i wanted to create a texture for bumomap/normal map in gimp i tryed the noise filter but this is not what i need You have to combine it with other things. ;] i am modeling a camera see camera real image here http://www.kenrockwell.com/nikon/d40/images/d40-18-55mm-top-big.jpg u can see that the camera material have little bumps with different shapes in each little bump how can i generate a texture like this in gimp You can probably do it in Blender too, using clouds texture, custom colour gradients, etc. But in Gimp: - new white image. - rgb noise filter, move sliders to max so you get lots of dots. - desaturate (lightness one is fine, try others if you want). - blur (normal one will do here). - curves, make a _/ curve , the histogram should show a sharp spike on the right side like /\, I placed the curve parallel to the left side of spike (x 162, y 0 and x 183, y 255, approx). This leaves you with some random black spots. - guassian blur, 1-2 pixels to smooth. - invert if you need the bump map that way. As last note, I decided the dot density was too low, so before invert I duplicated the layer, offset it, and put it in multiply mode. Next would be making the result tileable (plenty of tutorials about this, most just forget that you should use offset multiple times different values, otherwise you will have zones that are hard to touch up). GSR ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] creating a texture
hello there i am a blender user i i wanted to create a texture for bumomap/normal map in gimp i tryed the noise filter but this is not what i need i am modeling a camera see camera real image here http://www.kenrockwell.com/nikon/d40/images/d40-18-55mm-top-big.jpg u can see that the camera material have little bumps with different shapes in each little bump how can i generate a texture like this in gimp black and white will be also greate I would try Convert image to grayscale Copy out a small section and save as a .pat file i dont understand how grayscale can help thank u Well that was my interpretation of your black and white will be also greate -- Owen ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
