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Nearest-neighbor image resampling for ImageryLayer
See original GitHub issueWe develop an application that uses Cesium to display climate data imagery. Many users (usually Earth scientists) would like to see the original grid cell extends in the images. Cesium seems to use (linearily) interpolated textures by default. Is there any possibility to set an ImageryLayer to a nearest-neighbor image resampling so actual grid cells would be displayed as squares? Even a global Cesium (or WebGL) setting would help.
To get an idea, here is a screenshot of the application showing monthly cloud averages in 0.5 degree grid cells. The interpolation applied makes it impossible to distinguish the original grid cells:
Issue Analytics
- State:
- Created 6 years ago
- Comments:9 (9 by maintainers)
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@bagnell thanks, I hope to find some time next week for a PR.
Yeeha:
You can add Samplers to the textures here:
https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Scene/ImageryLayer.js#L743
Set the minification and magnification filters to
NEAREST. If the textures need reprojection, you can modify the samplers here:https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Scene/ImageryLayer.js#L796