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| library(rayshader) | |
| library(rayrender) | |
| popdata = raster::raster("gpw_v4_population_density_rev11_2020_15_min.tif") | |
| population_mat = rayshader:::flipud(raster_to_matrix(popdata)) | |
| above1 = population_mat > 1 | |
| above5 = population_mat > 5 | |
| above10 = population_mat > 10 |