Standard Volume and 2d Textures

[rkovach]

Hello, I am trying to achieve a cloud layer over a planet surface using a 2d texture, Volume Shader, and a hollow Poly Sphere Mesh.

The basic Setup is so far is working ok, however there is one visual problem I am not sure how to best address. Because the 2d texture is projected through the thin Volume, there is a noticeable Streaking effect as you approach the horizon of the planet. I am looking for a solution that would allow me to control the Density or the Transparency based on the Thickness of the Polyshell.

I tried Vertex Color on the Polyshell, but the Volume Shader does not seem to accept Vertex Color at all.

I tried changing the Volume Padding but that didn't help very much.

I also tried a Facing Ratio, but again, it seems the Volume Shader will not accept values from that node.

Any suggestions or ideas welcome, thank you!

[lee_griggs · Accepted solution]

Maybe displacement would work better?

[rkovach]

I see, I have been barking up the wrong tree.

Thanks!

[rkovach]

Is there a way to easily combine the Volume with the Displacement? The displacement works fine from a distance, but up close the clouds are just "tents".

Is there a way to use displacement depth as an input to Density?

[lee_griggs]

How many subdivisions do the clouds have?

>Is there a way to use displacement depth as an input to Density?

That and transparent_weight could work.

There is also volume displacement.