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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 10:08, 9 June 2020
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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 above the previous one. Note the dam near the top is a common feature | ||
</gallery> | </gallery> | ||
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All steps are described using the GIMP software package. Similar tools are available in other image editors. | All steps are described using the GIMP software package. Similar tools are available in other image editors. | ||
* Open one screenshot and enlarge the image size to some larger, square dimension bigger than the final size | * Open one screenshot and enlarge the image size to some larger, square dimension bigger than the planned final size so that there is room for the second screenshot to be pasted in | ||
* Paste the second screenshot into place so that the images match up seamlessly | * Paste the second screenshot into place so that the images match up seamlessly | ||
* Select a suitable region of the exact size in pixels (usually 1024 x 1024) | * Select a suitable region of the exact size in pixels (usually 1024 x 1024) | ||
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* Crop to the selection | * Crop to the selection | ||
The picture below shows the result of doing this on the two screenshots above. Note that the house, | The picture below shows the result of doing this on the two screenshots above. Note that the house, trees and roads are gone, but patterns of tracks in the paddocks remain. | ||
[[File:Wiki-dry-crop-result.jpg|thumb|A DryCrop texture square ready for use in FlightGear]] | [[File:Wiki-dry-crop-result.jpg|thumb|A DryCrop texture square ready for use in FlightGear]] | ||
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=== Further manipulations === | === Further manipulations === | ||
* The GIMP "make seamless" tool will create a tile that has no sharp edges at the cost of smearing parts of the tile internally | * The GIMP "make seamless" tool will create a tile that has no sharp edges at the cost of smearing parts of the tile internally. | ||
* Adjusting the blue colour level down will remove the blue tinge that appears in photos taken at some height | * Adjusting the blue colour level down will remove the blue tinge that appears in photos taken at some height | ||
* Adjusting all colour levels using a reference image (not necessarily an orthophoto) can remove various colour distortions | * Adjusting all colour levels using a reference image (not necessarily an orthophoto) can remove various colour distortions | ||