Yes, some of the higher end textures can do this. Adjusting the min shading rate is one way to fix this but you can also turn the texture filtering off on the character as well.

In the free stuff area here there is a handy python script made by svdl (Poser 7 Texture Filtering utility) that will turn off the texture filtering on your selected character, a prop or the entire scene. This way you don't have to spend time turning off the texture filtering in every part of your character.

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