public boolean usesMipMapLevels() {
            return usesMipMapLevels;
        }
Trilinear filtering is a remedy to a common artifact seen in
mipmapped bilinearly filtered images: an abrupt and very noticeable
change in quality at boundaries where the renderer switches from one
mipmap level to the next. Trilinear filtering solves this by doing a
texture lookup and bilinear filtering on the two closest mipmap
levels (one higher and one lower quality), and then linearly
interpolating the results. This results in a smooth degradation of
texture quality as distance from the viewer increases, rather than a
series of sudden drops. Of course, closer than Level 0 there is only
one mipmap level available, and the algorithm reverts to bilinear
filtering (GL equivalent: GL_LINEAR_MIPMAP_LINEAR)
jme3-core/src/main/java/com/jme3/texture/Texture.java