clamp function question

[Thejazzshadow]

I have created a basic voronoi function that looks like rocks on the shore of a lake. What I want to do is stop the rocks at a certain height. How do I limit the height of the function specifically.

[choronr]

My only thought would be to use a distribution shader set at maximum altitude or slope.

[Henry Blewer]

Surface layers can do this also. A surface layer also allows adding displacement directly using the displacement input. This can be a power fractal, redirect shader, or a node tree.

[Thejazzshadow]

Do I plug the displacement shader into the input of the surface layer?

[Henry Blewer]

Go to the displacement tab of the surface layer. Use the box on the right of the input and use assign to link to the last link of the displacement node.

[Tangled-Universe]

Is the layer which generates the voronoi a surface layer? If so, then use the surface layer's own restriction parameters.

If not, if it is generated using a displacement shader, then connect the output of the displacement shader into the child-layer port of either a surfacelayer or distributionshader and use their restriction parameters.

This should work, otherwise you can post your tgd (or an example) so we can figure it out for you.

Cheers,
Martin