I want to recreate those glass-bricks. For the deformation I thought to use different noise/musgrave texture as displacements.
The bricks are deformed in different sizes:
The whole bricks are deformed/curved - one is standing more out than the other - for that I use a really big noise
the surface is not completely flat so I want to use a smaller noise to add the little bumps
and finally there are fine lines for which will use another noise texture
How can I stack one displacement on top of another? First I want to have the big displacement, then when the brick is deformed the next displacement starts to displace the surface again and so on.
Is this possible?