how to blend 2 displacement in one material

[whelectric]

Hi dear 

is there any way to blend 2 displacement nodes with different heights in Arnold?   In redshit we can combine them by displacement blender node, but I have not found a similar node in Arnold 

please refer attached picture.

[diego6S3FN]

Hi, I have done that with layer_float and also with layer_rgba depending on the needs, you can control the intensity of the displacement on the layers.

[whelectric]

yes, thanks dear.

I mixed 2 textures as one to contact the displacement node and adjusted the displacement scale by a range node,it met the requirements but seems it s a nonintuitive way. maybe it s the only method right now 

[peter.fagerberg]

Just curious - is there a real physical world use-case for blending displacement maps? Or is it just for a fun effect?

In the real world, I would assume that you have to somehow stack (not blend) the displacement maps so that they are applied sequentially since the surface normals would change for each map? Let's say you have a map "big waves" and another "small waves" - it would be nice to mix them to create a choppy ocean, but is this even possible? If you apply the "big waves" first, wouldn't the "small waves" displacement have to consider the newly displaced surface normals?

As I said - just curious if there's a real-world example where blending displacement maps would make sense. 🙂

[diego6S3FN · Accepted solution]

Ok, I thought you wanted to mix two displacement maps to produce an organic mix of two different textures, like this one I attached, I mixed it with layers and with a noise in the mix channel, on one side the sand and on the other side the stones.