The atmospheres of each need to be adjusted, of course. So for Earth it's around 6500 meters, for example.Īpply color using an Image Map Shader as well, same projection and position as with Displacement. To be accurate, you probably want to use an Amplitude/Multiplication value that is equal to the highest point in the respective planetary body you are trying to visualize. Rename the Planet nodes to indicate which planet is which for easy reference.Īfter that it's a fairly simple matter of sourcing the appropriate texture maps - displacement or bump map for height (for non-gas planets), and color map, those are the only two necessary.Īpply the Displacement/Bump map to the planet surface using an Image Map Shader set to Spherical Projection, with the "position" set the same as your Planet's position. So find out the radiuses of the planets you want to model and set those values in Terragen. As I mentioned, things are measured in Meters in Terragen. You'll also want to adjust your planets to their real-world equivalent sizes. If you do, you'll probably need to greatly increase the radius of the Background Sphere (which, incidentally, uses a negative radius because it's inside out, so to increase it you want "bigger" negative values). You can try to use real-world distances but it will probably be challenging due to the immense scales involved. So create as many planets as you want to visualize in a single scene, then you work on placing them. So that's the first thing to be aware of. Terragen supports multiple planets, but all beyond the first/base one get created with their atmosphere and texturing nodes *inside* the Planet node. Depending on what results you hope to achieve (for example how close to the planets you want to get), this can be fairly simple.
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