Color Gradient Material

[SgtMoose151996]

I am working with point clouds in UE 4.24 and am designing materials to apply a color gradient to them. Here is an example of one of the gradients, which applies a color gradient in the X-direction based on Absolute World Position.

I am trying to figure out something similar, but for a radial color gradient as opposed to a linear color gradient (i.e. colors band outward radially from a set position).

Here is the material diagram for the Gradient X material for reference:

Also, is it possible for a material to read in inputs; for example, to change the XYZ coordinates of the center of the radial banding to something other than the center point of the point cloud?

Thank you in advance!

[SgtMoose151996]

So I’ve figured out this much. I figured out how to implement a radial gradient and apply it to the point cloud based on texture coordinates.

I would like to color the point cloud based on Absolute world position instead:

And the result is this:

How can I adjust the material to make it so that the base color lerps from green to brown based on the alpha values of the radial gradient texture sample?

[Frenetic]

Use SphereMask. It takes a set of positions and spits out an alpha. Ought to plug right into the Alpha of a LERP w/2 colors.

ref:
WTF is? - https://www.youtube.com/watch?v=xRxkcFOhNrc
https://docs.unrealengine.com/en-US/…ity/index.html

[SgtMoose151996]

It works now. Thanks!