Quick tutorial how to make a material fade out in to transparency.
0:00 start
0:12 Activate node wrangler
0:27 Create uv-sphere
0:37 Start the material
0:52 Adding the transparency - by colorramp and alpha
1:35 Changing material properties - alpha hashed
2:00 Adding more control - Separate xyz
2:16 Black controls the transparency
2:42 Adding gradient color