I have used textures from services such as FreeImages.com (formerly sxc.hu) and different bundles but is rarity that they connect well together. This print design resulted in odd lines and some bad textures where the images do not connect well together. My friend suggested blurring and I think it could work with the best textures but not with poorer ones. So how should I design this kind of textures? Some good sources and which method to use with poorer textures for large city facade designs?
Update
Use Photoshop and put each vertical texture to independent file so the file size does not increase too fast, easier to manage.
In Photoshop, I used the finger, perspective projection, rotation -- to create dark textures for a tall building from this texture. Now if you look at the general trend in the black-white picture, you can see that certain patterns are too repeating here. It is very rough and time-consuming to use orthogonal textures with convex fix and then adapt it to the environment. For an arbitrary-sized building how to automate the creation of unique tiles? Basically the problem would require to build a convex lattice against which to apply the texture with light coming from the floor level when the texture rises up like a tower. How can you do it? With some 3D software that could extract the light-adjusted texture?