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Earthview: Difference between revisions
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Notice that all the input images are provided by NASA and any usage of the textures should be made in accordance with their distribution policy. They are directly accessible for download at [http://visibleearth.nasa.gov/ Visible Earth], look into the Blue Marble section and search for a texture set of your choice. | Notice that all the input images are provided by NASA and any usage of the textures should be made in accordance with their distribution policy. They are directly accessible for download at [http://visibleearth.nasa.gov/ Visible Earth], look into the Blue Marble section and search for a texture set of your choice. | ||
NASA provides different seasons | NASA provides different seasons for the Earth images, even one set of images per month. [https://github.com/chris-blues/Nasa2FGearthview Nasa2FGearthview] allows you to chose the month for which you want to generate your set of tiles. | ||
Graphics cards prefer powers of two in texture sizes, so [https://github.com/chris-blues/Nasa2FGearthview Nasa2FGearthview] resizes the tiles to 1024x1024, 2048x2048, 4096x4096, 8192x8192 or 16384x16384 pixels. Be aware of the original image resolution, there is no much gain into using a super-sampled tile. For instance, the current cloud maps provided by NASA have a resolution of typically 10000 pixels. Using 8192x8192 sampling is the best option, the gain of super-sampling it at 16384x16384 is very small. | Graphics cards prefer powers of two in texture sizes, so [https://github.com/chris-blues/Nasa2FGearthview Nasa2FGearthview] resizes the tiles to 1024x1024, 2048x2048, 4096x4096, 8192x8192 or 16384x16384 pixels. Be aware of the original image resolution, there is no much gain into using a super-sampled tile. For instance, the current cloud maps provided by NASA have a resolution of typically 10000 pixels. Using 8192x8192 sampling is the best option, the gain of super-sampling it at 16384x16384 is very small. | ||