to make the model textures clearer in blender check the upper left menu bar - file - user preferences... <br/> on the system tab uncheck Mipmaps, set Anisotropic Filtering to Off and save user settings button in the lower left.
- get Minecraft [tlauncher](https://tlauncher.org/en/) [linux](https://rutracker.org/forum/viewtopic.php?t=4891689) you need java installed start it up in creative and spawn the mob you want by pressing T and pasting this command /summon pig ~ ~ ~ {NoAI:1} [usefull minecraft commands](https://github.com/22i/minecraft-voxel-blender-models/edit/master/usefull%minecraft%commands)
- open the blender model you want to test
- when in default view or animation view find the outliner window in the top right
- there should be armature click on the eye icon to hide the bones
- switch to UV editing view in the upper top menu bar
- have the same view over the mob in blender and minecraft to see if anything is off
when exporting mobs that hold items like: zombie pigman. baby zombie pigman, vex, skeleton, stray, wither skeleton, illusioner and vindicator you have a choice between minecraft default item or pixel perfection item. If you want pp then delete the other holdable item without pp in the name.
if something is off, some cube is in wrong location or if animation is broken like with wither, enderdragon, wolf and skeleton reopen that .blend skip origin to 3D cursor part and put model into middle manualy.