You will find some rasters in MRR format that you can use in your own visualisations. MRR rasters can be displayed in ProRaster or MapInfo Pro.
Global Imagery – Atlas Style Terrain and Bathymetry
This MRR format raster contains global imagery generated from global high-resolution terrain and bathymetry raster data. The onshore terrain data is MERIT DEM and the offshore bathymetry data is GEBCO. The download size is 543 MB. Raster is 1 arc-minute resolution, 22528 x 11264 cells.