Earthview: Difference between revisions

Earthview (view source)

134 bytes added , 29 May 2021

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→‎Remarks: Added statement about supersampling of heights and normalmaps.

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 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. Similar thing holds true for heights and normalmaps (16384x16384 for them is also supersampled, so prefer at most 8192x8192 for them).
 === Installing and using customized textures ===