I've noticed that when I generate impostor texture sheets with the grabber tool I discover that it is not adding the canopy elements of my tree mesh as it has done for the diffuse texture. Does anyone know why the grabber tool would omit the canopy information for the normal map process? Attached are sample of the grabber outputs. A diffuse of tree then it's corresponding normal map where only the trunk shows up on the normal map. I've included the normal map for a pacific silver fir that seems to be correct.