I have Blender 2.75 and I am working on a project. I want to import a transparent window texture but when I do this happens:
It doesn't look transparent in Blender. When I render it with a light and a green cube behind it this happens:
The bars are transparent but the background turned black. The same thing happens with another texture when I import it. The background of the texture is white and doesn't blend in with the brick texture:
How do I make these textures transparent the right way?
EDIT: When I add this node setup:
The 3rd texture (with the background not blending in) just shows all white and it's a black border when rendered.