Get texture coordinates from shader nodes

[josephenry]

Hi,

Let's suppose that I have a terrain and I want to shade it based on the height of each vertex. (for example by mixing two layers of materials with a mask)

In Blender, I would do something like this :

I just extract the Z component of the Object texture coordinates (0 is at the center of the bounding box of the object) and plug it into the material output. Simple as that, which give me this :

Now I searched on internet but didn't find a way to get the geometry information inside Maya using Arnold as the renderer.

Could someone point guide me into the right direction?

[mspeer · Accepted solution]

Hi!

You can simply use

a) a planar texture mapping or projection from the side, or

b) the samplerInfo node Point Obj or Point World Output.

https://forums.autodesk.com/t5/maya-shading-lighting-and/shader-that-changes-color-based-on-height-f...

Here a test for procedural terrain in Maya (using the mentioned techniques).

[josephenry]

NIce, thank you for your answer, I am going to try this! 🙂