Hi i have some problems with the transparancy of an importet .obj.

                BlendState bs = display.getRenderer().createBlendState();


I'm using this in a GameState that extends BasicGameState. From 3 directions the star looks right, from 1 I have a black outline. When i rotate the model, the wrong side rotates too (wrong modeled?).

It looks to me like you have a similar problem to the one in this thread:

Renase sums up the problem near the end, although I think it’s JME1 code.

In short try

  • Adding a zbuffer state with writing disabled. This will stop one part from totally occluding the other.
  • Consider using 4 quads instead of one model. This should allow the depth sorting to work.

Adding a zbuffer state with writing disabled fixed this problem, thx.