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Howto:Editing tile textures and materials: Difference between revisions
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Howto:Editing tile textures and materials (view source)
Revision as of 12:38, 9 June 2020
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=== Image sources === | === Image sources === | ||
Texture images should reflect the way the land looks from above, so a typical starting source is an aerial photograph or orthophoto, such as those shown by OpenStreetMaps when editing. Note that very few areas license these images in a way that is compatible with FlightGear use. One jurisdiction that does release aerial photos with a license compatible with FlightGear is the NSW state government in Australia. A screenshot of an area of NSW taken directly from OSM is used in the following example - conveniently a scale is provided by OSM that is useful for working out how many pixels of the screenshot correspond to the desired distance on the ground | Texture images should reflect the way the land looks from above, so a typical starting source is an aerial photograph or orthophoto, such as those shown by OpenStreetMaps when editing. Note that very few areas license these images in a way that is compatible with FlightGear use. One jurisdiction that does release aerial photos with a license compatible with FlightGear is the NSW state government in Australia. A screenshot of an area of NSW taken directly from OSM is used in the following example - conveniently a scale is provided by OSM that is useful for working out how many pixels of the screenshot correspond to the desired distance on the ground. | ||
In general two screenshots of overlapping areas will be necessary to form a full square of the required dimensions. Here are two used to create a "DryCrop" texture: | In general two screenshots of overlapping areas will be necessary to form a full square of the required dimensions. Here are two used to create a "DryCrop" texture: | ||
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<gallery> | <gallery> | ||
Wiki-dry-crop-start-2.jpg|Screenshot of area in NSW from OSM | Wiki-dry-crop-start-2.jpg|Screenshot of area in NSW from OSM | ||
Wiki-dry-crop-start-1.jpg|Screenshot of area in NSW just | Wiki-dry-crop-start-1.jpg|Screenshot of area in NSW just below the previous one. Note the dam near the bottom is a common feature | ||
</gallery> | </gallery> | ||