You can adjust the properties of a ring to create something similar to an accretion disk.

When you select a Ring in the Add panel, select "Advanced Settings," the three horizontal lines, each with a dot on them, above the "Add Ring to Object" button.

Since accretion disks are mostly clouds of dust and gas surrounding an object, you can increase the Radius per Object of each ring particle so that it will be a dust cloud instead of a rocky fragment.

To get something that looks pretty but isn't simulated, you'll want to add lots of particles (which may decrease performance), and can either turn off temperature simulation and then increase the temperature of the dust clouds until they glow (you can do this all at one time with the Multi-Select Tool), or set their Color to be Manual and then change the color of the dust clouds when creating the ring.

The light wrapping around the black hole Gargantua in the movie Interstellar will depend on the viewing angle of the black hole, since the light will only get warped if the disk is behind the black hole (that lets the light from the disk get bent around the back of the black hole to the front).

Originally posted by bshapiroalbert:

You can adjust the properties of a ring to create something similar to an accretion disk.

When you select a Ring in the Add panel, select "Advanced Settings," the three horizontal lines, each with a dot on them, above the "Add Ring to Object" button.

Since accretion disks are mostly clouds of dust and gas surrounding an object, you can increase the Radius per Object of each ring particle so that it will be a dust cloud instead of a rocky fragment.

To get something that looks pretty but isn't simulated, you'll want to add lots of particles (which may decrease performance), and can either turn off temperature simulation and then increase the temperature of the dust clouds until they glow (you can do this all at one time with the Multi-Select Tool), or set their Color to be Manual and then change the color of the dust clouds when creating the ring.

The light wrapping around the black hole Gargantua in the movie Interstellar will depend on the viewing angle of the black hole, since the light will only get warped if the disk is behind the black hole (that lets the light from the disk get bent around the back of the black hole to the front).

You can also make a strong magnetic field that looks like a blue accretion disk.

i tried but its not working the particles just get swipped out in the void and i see nothing

Originally posted by Error404!sans:

i tried but its not working the particles just get swipped out in the void and i see nothing

Can you provide some more details for the steps you are following? I was able to make a somewhat bright accretion disk doing the following things:
1. Open a new simulation
2. Add a 10 Million Solar Mass Black Hole
3. Select the black hole and click "Add Rings"
4. Select the 2-4 Radius Ring
5. Open the Advanced Ring Settings
6. Set the particle Radios to about 0.02 AU
7. Add the ring to the black hole
8. Select all the ring particles with the Multi-Select Tool
9. Change their temperature to about 5000 degrees Celsius
10. Turn off temperature simulation

Thank you so much

Originally posted by bshapiroalbert:

Originally posted by Error404!sans:

i tried but its not working the particles just get swipped out in the void and i see nothing

Can you provide some more details for the steps you are following? I was able to make a somewhat bright accretion disk doing the following things:
1. Open a new simulation
2. Add a 10 Million Solar Mass Black Hole
3. Select the black hole and click "Add Rings"
4. Select the 2-4 Radius Ring
5. Open the Advanced Ring Settings
6. Set the particle Radios to about 0.02 AU
7. Add the ring to the black hole
8. Select all the ring particles with the Multi-Select Tool
9. Change their temperature to about 5000 degrees Celsius
10. Turn off temperature simulation

Hello. I just found this thread and tries this techique. The result was actually pretty satisfying. However these particles don't seem to be capable of actively warming up an orbiting planet (which makes sense of temperature simulation is turned off). Is there already a way to manually change this or shall I wait patiently for future updates?

To be honest I do hope your team makes this change on black holes. I mean you see how much Gargantua captivated people's imagination. A planetary system warmed up by a black hole is fascinating.