I need a surface layer to stay within a heightfield shader.

[MortalSphere]

I would like to create several heightfield shaders on one planet that have independent surface layers.

Is this possible?

[inkydigit]

not sure, what about using the distance shader with the camera placed at the centre of your required terrain, as the blend shader for the specific surface layers?

[cyphyr]

I would like to create several heightfield shaders on one planet that have independent surface layers.

Is this possible?

If you right click on the heightfield shader you can save the file as a .ter. You can also save it as an .exr which you could open up in photoshop (or similar) change into a normal .bmp and then use that as a blendshader for your individual surface layers. As long as the image shader is set to "Plan y" and the dimensions and positions match your initial heightfields then you will have a surface layer for each heightfield.
hope that helps
Richard

[inkydigit]

I would like to create several heightfield shaders on one planet that have independent surface layers.

Is this possible?

If you right click on the heightfield shader you can save the file as a .ter. You can also save it as an .exr which you could open up in photoshop (or similar) change into a normal .bmp and then use that as a blendshader for your individual surface layers. As long as the image shader is set to "Plan y" and the dimensions and positions match your initial heightfields then you will have a surface layer for each heightfield.
hope that helps
Richard

using the image map shader, surely a white square would suffice?

[cyphyr]

It would indeed but (or maybe "and") using both might give better or more interesting coverage
Richard

[inkydigit]

It would indeed but (or maybe "and") using both might give better or more interesting coverage
Richard

true!

[MortalSphere]

So if I'm following you guys correctly that blendshader then mask out only one surface layer? And then I could create another blendshader to mask out a different surface layer? I guess I should open up Terragen and try it out.

[inkydigit]

you can use it on as many layers as you need for that specific terrain

[Jack]

or you can just do a rough yet quick mask with a simple paint shader