Makin’ planet Saturn ( with rings and shadows )

In this video, I’m revisiting my earlier tutorial showing how to add rings to a planet when using Video Copilot’s Orb plugin. I show how to make the rings using Polar Coordinates, then use an Alpha Invert Matte along with a simple expression to cut the rings out. I then add fake shadows using adjustment layers to have the planet cast a shadow on the rings and the rings cast shadows on the planet.

Finally, I show how to recreate the planet and rings in Cinema4D Lite (included in the Adobe After Effects CC licence)


Original tutorial: https://youtu.be/DFlnj8B4yeo

Project Download: https://bit.ly/39ycYhX

Textures from: https://www.solarsystemscope.com/


Expressions used:

Dan Ebberts’ LookAts

X Rotation:

delta = toWorld(anchorPoint) - thisComp.layer("Sun").toWorld([0,0,0]);
radiansToDegrees(Math.atan2(delta[1],delta[2]))*-1 

Y Rotation:

delta = toWorld(anchorPoint) - thisComp.layer("Sun").toWorld([0,0,0]);
radiansToDegrees(Math.atan2(delta[0],delta[2]))*-1+180 

Variation for the shadow on the planet:

Angle = comp("Saturn").layer("Shadow Pointer").transform.xRotation; 
if (Angle < 0) { 
    Angle=Angle*-1; 
} 
X = linear(Angle, 90, 180, 50, 100); 
Y = linear(Angle, 90, 180, -25, -50); 
[X,Y]

Published by ShiveringCactus

Tutorials and videos, mainly After Effects, but with some 3D and puppetry stuff too.

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