Is there a Land impact glitch?

[Galatheus]

So, I have two things I'm trying to link together a mesh (9LI) and the physics(8LI). When I linked them together, the combined land impact went up to 162. What am I doing wrong? Is this a glitch?

[Callum Meriman]

By physics you mean some transparent prims? 

[Galatheus]

Yes. Transparent prims that I made in-world so I don't know why it's doing that all of a sudden.

[Drongle McMahon]

When you link prims to mesh, they switch from legfacy prim LI accounting to mesh-type LI accounting. In Many cases this will increase the LI. The more you distort the prims, the more the increase is likely to be. Toruses are particularly bad. If you restrict your physics prims, as far as possible, to cubes with no distortion other than stretching, cylinders with only stretching the long axis (ie perfectly circular section), and undistorted spheres, these will use physics engine primitives which are the lowest possible physics weight. As soon as you distort them further, the physics weights will jump.

One way of testing, to see which of your prims is making the worst LI contribution, is to unlink them, then add a blank normal or specular map. That also switches them to the new accounting. Make sure they are set to physics shape type "Prim", and click the "More Info" link on the edit dialog to see the separate weights.

[ChinRey]

I've just posted a more detailed explanation to the skyrocketting land impact problem in another thread. Maybe not a good idea to repost it here so here's the link:

https://community.secondlife.com/t5/Building-and-Texturing-Forum/Single-SL-Primitives-Blowing-up-their-land-impact/m-p/3104547/highlight/false#M16626