Hi!

Is there any way of combining two textures by displaying a portion (stripe) of a texture over another?I know there was a way by using a black an white map on wich was the stripe in a node (I don't remember wich) in order to define the size and shape of the texture you want to display over.Something like a mask.
Thank you in advance!

Best regards!

PS : is the blender node a good option, or is there any other way around?

Blender is perfect for this. Plug your two textures into it, and then you need to decide what to use to control the blend.

Basically, you want a shape to appear that consists of black or white. The black region will choose Value_1's texture. The white region will choose Value_2's texture.

The shape can be procedural (using nodes) or it can be drawn (using an Image_Map node to hold the drawing.)

This is an example of what I call a "dual" material - a single shader that really has two shaders within it. Your case is pretty simple - same shader logic, just using one of two different color maps in each region.

More can be done - you can make each region appear to be different in every characteristic - not just color (from your texture blend) but also specularity, reflection, bump amount - everything can be different in the two regions.

Here's a thread where I showed this technique to create a dual material that did metallic car paint and plastic decal in the same shader.

Dual Materials with Stencils 

Thanks Bagginsbill, more for me tool box--Jan

PS : this can be doen in the same way, or should I add something extra?As you can see the red color is "bellow" the actual cover, giving it a glassy look...