How can I blend two images? Description :

I have the pant hose mesh and texture (let's call it texture1) ,and also the body texture(texture 2) , 
I want to blend the body texture with the pant hose texture (make semi transparent pant hose but also have the skin color)
 but only use the pant hose mesh
(layer of skin texture is behind the semi -transparent pant hose)

For easier to imagine, i can get the same result by doing this (but this method duplicates the pant hose mesh, while i want to only use the pant hose mesh as i wrote above)


Rearrange the pant hose UV (let's call it UV1) to fit the apporiate area of body texture . Now i have new UV for pant hose ,let's call it UV2
The arranged UV2 pant hose mesh has the same position as the old one, but has different texture
Make the old pant-hose mesh become semi transparent and leave the new one in same position


Now i have semi transparent pant hose with skin effect

Question :

I want to use only one pant-hose mesh,so i 'm going to edit the body texture (texture2) to fit the UV1
(this is what i mean split the texture follow the UV)
for more clearly about split the texture follow the UV :

****  More detail

For example we have face (A) with  3 vertices ,these vertex indices = 1,2,3
The old UV is UV1,The new one is UV2
I want to do this :
In UV2 editing window, i open the body texture and retrieve texture content inside the face (A) ,and paste that texture part into the corresponding position of UV1
(the position define by face A, which is created by vertices 1,2,3)



-Repeat the steps above with all faces
After doing this (if possible) , i 'll use gimp to place the semi transparent pant-hose texture layer over the new body texture -(the texture created by steps above)- and have the same effect as above

Old post


  I have an object which has two UVs.
  
  UV1 is for texture 1. UV2 is for texture 2.
  
  I 'm going to blend texture 1 with texture2 with image editor, the
  semitransparent layer of texture1 is on top of texture 2
  
  Is it possible to split the image of texture2 follow the UV2, and
  paste to the right position of UV1 ? Thanks
Using cycles you can use a mixRGB node to combine two images into one, each image can use a different uvmap. The Fac of the mixRGB defines how much of each image is visible.

You can then use a third greyscale image to define the amount that the two images mix together, white showing one texture and black the other and 50% grey being an even mix of both, texture painting can be useful to position the transition where you want it.