All skin and bones
Start out with a preset. We'll go with preset 2. Open it up in GIMP
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Next, grab fmarkSkeletonBody.png and layer it over the preset.
Adjust it over the body if you're using a cat. If you're doing a dog it should be fine. Next, paint over the paws in black
Add a new layer underneath the black markings, and paint under it. I'm using a lighter version of the fur.
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Merge the black markings onto the layer you painted.
Next step is to go to Colors> Color to alpha, and set it to black. This will give you the bones themselves
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Blur the bones.
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Duplicate the marking layer. Turn one invisible, and turn the other's opacity waaaay down.
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Merge the low opacity onto the base, and export to preset_2body.jpg or whatever file you're using*
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Hows that look? Really simple, not worth a tutorial on? But wait, what was the other bone layer we made?
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Use the smudge tool with bristles, and brush the bones the direction of the fur. Turn the opacity down very low, I have it at 15.8. Export the bone layer as bones.png
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Open the body file, add a white layer above the base. Set it to low opacity, I'm using 21.7. Export it as skinny.png
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Replace the body code with
material preset_2_bodyMatL
{
technique
{
pass
{
ambient 1.000000 1.000000 1.000000 1.000000
diffuse 1.000000 1.000000 1.000000 1.000000
specular 0.050000 0.050000 0.050000 1.000000 12.500000
emissive 0.000000 0.000000 0.000000 1.000000
cull_hardware none
cull_software none
alpha_rejection greater_equal 128
scene_blend alpha_blend
texture_unit
{
texture preset_2body.jpg
tex_address_mode wrap
filtering trilinear
}
}
pass
{
lighting on
scene_blend alpha_blend
specular 0.9 0.9 0.9 1 128
texture_unit
{
texture bones.png
}
lighting on
scene_blend alpha_blend
specular 0.9 0.9 0.9 1 128
texture_unit
{
env_map spherical
texture skinny.png
}
}
}
}
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Now the light will hit the bones and shade them. It's subtle, if you want a more dramatic impact add some darker colors below the markings before you merge onto the main body. The step is marked with an *