codesignprojects
The geocentric system of the universe with the spherical Earth in the center. Complete with the crystal sphere, blinking stars, the day-night Earth cycle and axis tilt.
The Day-Night cycle is visualized on the original Ptolemaic map, depicting Europe, Africa and Asia, as the tree known continents.
Video demo here, here, here and here!
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THE TWO VERSIONS:
1. THE VERTICAL DOME
Illustrating the rotation of the system from a top view. The spheres are cyclically shifting up and down, illustrating the orbital tilt. Animated in Geometry Nodes.
2. THE ROTATING SPHERES
The spheres are rotating in multiple axis, emphasizing the "orb-nature" of the universal structure.
Enjoy ! Happy Blending !
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NOTE - The Ptolemaic model has specific orbital cycle parameters and epicycles defined. This animation is true to the spirit and overall dynamics of the model, but, as one of the reviews pointed out, it is not following those parameters - simply because it concentrates on the aesthetics. (You can, of course, modify the setup to the parameters you wish, set up the adjustable speeds of the planet rotations to match the model - or any model you can come up with, in fact. There are plans to create a future update of this setup, with the original Ptolemaic periods, epicycles and such.)
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NOTE
-(Since it is a concept demonstration, it is kept as simple as possible.) The GeoNodes trees are kept clean for easier readability and have detailed explanations. Everything is built from the base. The point of these setups is to provide a base core of the concept, node from node, instead of contracting all into node groups with exposed settings, which makes everything harder to read and dissect.
You can embellish, refine as you wish based on the core or realize your own ideas.
-Read the text description, it has a lot of useful info !
- Be sure to uncheck the Sun object's visibility in the Orbital version when rendering !
- The animation is optimized for Eevee (View - Render Viewport Animation) up until 4.1. For 4.2 and above, due to changes to Eevee, you need to adjust the looks accordingly. - If you open the 4.1 file in the corresponding Blender version, you will see the exact same rendered view as in the animation without further modifications.
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