openscenegraph OSG

hai,
i am using openscenegraph for rendering .flt files.Using osgviewer i can walk thru .flt file. my model(.flt) is forest terrain.
my problem is, i am seeing white line between two trees.what may be the problem?
is it problem of visual database? i have a image showing the problem.i have marked the problem in red. Please help me to find out the solution.
Thanks in advance.

Link to the image
file

Dude! Please don’t cross post.

I can see the problem in instances of one particular tree.If the tree is generated in parts ( i.e Scene graph), it may that the parts are misaligned.

Other vague reason can be , assuming the tree is textured , some problem with the texture.

Hope this helps.

Adjust your alpha func and turn on alpha blending.

Any follow-ups please post to this thread.

This has nothing to do with “OpenGL Shading Language”.