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Making other texture maps in Gimp for Blender Head Model

Jul 31, 2010, 20:53
Post: #1
Making other texture maps in Gimp for Blender Head Model
Hey, everyone this is my first post on this forum. I am a Blender 3d (ver 2.49b) guy and am trying to learn some Gimp 2 so I can add texture maps to my head model (if you want to see the image I want to manipulate, see the attached pic). I have been following this tutorial: http://www.bendansie.com/BD_BlenderHumans.pdf . However, I am stuck on part 7 because of my lack of Gimp skills. Could someone clarify how exactly (the specific buttons I need to press) to perform the operation in the quotes below?

1.
"Bump map--Go to the area in Gimp that contains image channels. Separate out the Blue channel. This one should contain theh highest contrast to use for the bump. Invert the image. Convert back to rgb 8bit. Re-invert the eyebrows, because they will dent the wrong way. Paint over the white hairs with black or however you want ot go about that. You may need to play with 'Levels' to get a bit more contrast."

I know where the color channels are located, but how do I "separate out the Blue channel", invert the image, convert it back to rgb, and fix the eyebrows?

2.
"Epidermal Map--Drop the saturation of the map by 50%."
How do I do this?

3.
"Specular Map--...I baked one image then moved the hemi light from one side to the other and baked another. Then I merged the two bakes together using screen and dropepd teh overall brightness of the merged image way down."
The first part is done in blender. But how do I merge to images in Gimp?

Thanks so much. I really appreciate the help,
amartin7211


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