Problems with the gradient texture - i can't use spherical option

Hey cgfalcon ,

Where is your object origin at? It needs to be centre of the geometry. On the top left of the 3D view click Object > Set Origin > Origin to Geometry.

This should solve your problem. Let me know if not.

Hey Adrian,

a very good idea, but it doesn't  work either. But thank you anyway

Can you post an image of the full node tree for the clouds materiel

Hi Adrian, yes i can 

Ok , 2 things off the bat:

• You need to use the object coordinates of the Texture Coordinate Node,
• When you SHIFT + CTRL + CLICK on the gradient node with node wrangler you get a viewer node to see the result of the gradient texture, but the viewer node is plugged into the surface of the material output, we are are working with volume here, not surface, so that is not as useful in this situation. You can use it but you will have to manually unplug the Principled Volume and move the viewer to the volume input of the material output node.

Hello Adrian, believe me, i tried this all,

this combination above is the only sample with a result

Here i changed the connections - as you see. The Texture coordinate object is plugged to the mapping's vector and the viewer is connected to the volume socket of the output . And no result 

Hello Adrian, maybe i got it. I found something white in the middle of my cube, but it is very very small. So i resized it and maybe i can work with it. Thank  you for your help, 

Lutz

Nice one. Adjust your curves to get the shape your looking for and increase or decrease the multiply node to adjust the density 

cgfalcon 

you have a Cube with sides of 233m (and a Scale of 1)!

How big do you expect  a spherical gradient to be in there?

Now Apply the Scale:

Hello Spikeyxxx, thank you, indeed that is the solution - many thanks