I really would like to learn about UV mapping and I presume this is the best community for me to ask about Blender. I have a 3D building model produced from CityEngine and when it was exported into collada (.dae file) -or even .obj file- all its textures are stored in one folder. I mean, there are alot of images stored. I was searching for a means to merge these images into one image file and I have this UV mapping researched. I would like to ask how would I do that in blender. Can somebody help me edit my model and have the UV mapping in blender? I don't know where to start, I have importd my model into blender yet none of the textures were displayed. it's all white. I really appreciate help from you nad God bless.
To UV Unwrap your model, Go to Edit mode of your object and select all the mesh, then press U on your keyboard to open UV Mapping options and select smart UV project,
after change your window mode to UV mapping,
and finally open the texture you want to give to your object in the bottom bar,
once you opened you can scale and move your UV map untill it matches your texture how you want it.To scale press S key, to move press G key