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Visualizing 100k Years of Earth in WebGL
Building an interactive historical model of Earth using THREE.js and climate data
I only need high resolution near sea level to determine the exact shoreline, so I make a custom value range for this. Then I convert the grayscale value back to the height and choose either water or grass color, based on if it is below or above sea level. If I now switch between 15,000 years ago and the present, you can see that the area between Great Britain and mainland Europe was previously connected (see image below).
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