Gradient glowing object - how to? I need to create a sphere, which emits lights, which affect to other objects.
But the problem is: i need sphere to look like on the picture - center is always with one color and edges are glowing with another.
And this should not affect color of light.

I'm very new to Blender. I understood how to emit light that affects other objects. But it's white.

The important note is: it must be fully exportable, because i'm going to use it in another engine.

Sorry for any mistakes in sentences, please.
Where exactly are you trying to export to and through which exchange format?
As stated above materials are very tied to the rendering system they were created for, you can't really export them as you can with a 3D model.

If you are using Cycles render you need to


Create a new material
Add two emission shaders (one with the desired color, the other white)
Use a Mix Shader node to mix them
Add a layer weight node as mixing factor
You may use either Fresnel or Facing as output
Optionally you can fine tune the color grading with a Vector Curve Node
To get the material to emit light only in one color add a new Mix Shader node
Connect the original shader to the bottom socket
Connect the uniform emission color to the top socket
To control that mix shader add a Light Path node
Connected the Is camera socket to the mix factor




This should work in Cycles, but as stated above it is very much tied to the way Blender works and how Cycles builds it's shaders, I very much doubt you will be able to export this anywhere useful, much less to a real time rendering system like a game engine or something.